A hanger for securing electrical cabling to a structure, the hanger including a cable holding portion provided at a distal end of the hanger for holding one or more cables to be secured, a hook-like portion provided at a proximal end portion of the hanger for securing to the structure and a locking clip-like portion provided intermediate of the cable holding portion and the hook-like portion for clipping the hanger to and securing the hanger to the structure.
A hitch mount (100) for a hoist including a main member (102) having a proximal end and a distal end, the proximal end configured to couple with a vehicle hitch, a hoist mounting bracket (110) at the distal end of the main member, a pulley (130) mounted on the main member between the proximal end and the distal end, and a rope lock (150) mounted on the main member between the pulley and the distal end.
B66D 3/10 - Applications of braking or detent devices
H02G 1/08 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
A floor mount stand that is connectable to an electrical box includes a frame connectable to the electrical box to support the electrical box on a floor and a brace that is removably connected to the frame. The brace is connectable to the frame to extend to the adjacent vertical studs.
An electrical component hanger for securing at least one electrical component to a structure, the electrical component hanger including at least one connector portion for securing the electrical component hanger to a structure and a pair of electrical component receiving portions extending from the at least one connector portion for receiving at least one electrical component to be secured.
H02G 3/32 - Installations of cables or lines on walls, floors or ceilings using mounting clamps
F16L 3/06 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing with supports for wires
H02G 3/04 - Protective tubing or conduits, e.g. cable ladders or cable troughs
F16G 11/14 - Devices or coupling-pieces designed for easy formation of adjustable loops, e.g. choker hooks; Hooks or eyes with integral parts designed to facilitate quick attachment to cables or ropes at any point, e.g. by forming loops
F21V 17/16 - Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts of the lighting device; Snap action mounting
5.
ELECTRICAL SET SCREW CONNECTOR SYSTEMS AND METHODS
An electrical set screw connector system is provided. The system includes a connector body and a bit. The connector body has a set screw and a pressure limitation for mechanically and electrically securing a conductor cable therein. The pressure limitation corresponds to a torque limit applied to the set screw. The bit has a torque limiting region that separates a body mating portion from a tool mating portion. The body mating portion operatively mates with the set screw, while the tool mating portion operatively mates with a tool. The torque limiting region shears at the torque limit.
H01R 4/56 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another
B25B 21/00 - Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
6.
SURFACE MOUNTED ELECTRICAL DEVICE SUPPORT ASSEMBLIES
The electrical device support assembly for securement to a surface is provided. The assembly includes a support bracket having an outer rim, a main region, an inner region, and one or more first apertures configured to secure the support bracket to a pair of structural supports. The outer rim surrounds the main region. The main region surrounding the inner region. The inner region includes one or more second apertures that are configured for mechanical connection of an electrical device to the support bracket.
H02G 3/10 - Distribution boxes; Connection or junction boxes for surface mounting on a wall
H02G 3/30 - Installations of cables or lines on walls, floors or ceilings
F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
An electrical terminal includes a body with a first opening for receiving an electrical conductor and a second opening for coupling the electrical terminal to an electrically conducting member. The second opening has a first open portion with an inner dimension to receive a first fastener and a second open portion with an inner dimension different than the first open portion. The second open portion is configured to receive a second fastener having an outer dimension different than the first fastener. The second open portion can have a substantially circular first and second open portions that overlap along the outer edges. An electrical assembly includes the electrical terminal and an electrically conducting base, and either a first fastener having a first dimension or a second fastener having a second dimension, where the dimension of the fasteners corresponding to dimension of a threaded hole in the base.
H01R 4/26 - Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
H01R 4/34 - Conductive members located under head of screw
H01R 11/26 - End pieces terminating in a screw clamp, screw or nut
H01R 4/00 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
A reeling device (100, 300, 400) including a housing (102, 302), a retraction mechanism, a shaft (130, 330) rotatable by the retraction mechanism, a first drum (140, 340) coupled to the shaft, and a second drum (150, 350) coupled to the shaft, wherein the second drum (150, 350) has an inner diameter greater than an inner diameter the first drum (140, 340). A first wire rope (410) is attached around the first drum and secured to a first position (412) on an electrical cable. A second wire rope (420) is attached around the second drum and secured to a second position (422) on an electrical cable, the second position being distal to the first position.
B65H 75/36 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables without essentially involving the use of a core or former internal to a stored package of material, e.g. with stored material housed within casing or container, or intermittently engaging a plurality of supports as in sinuous or serpentine fashion
B65H 75/38 - Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans specially adapted or mounted for storing and repeatedly paying-out and re-storing lengths of material provided for particular purposes, e.g. anchored hoses, power cables involving the use of a core or former internal to, and supporting, a stored package of material
A clamp including a body, a retaining portion of the body, the retaining portion including a cavity with at least one cavity engagement mechanism and a plurality of holes, a conductor groove extending through the body to the cavity, a keeper removably positioned within the cavity, the keeper including at least one keeper engagement mechanism configured to engage with the at least one cavity engagement mechanism, and a plurality of fasteners for extending into the plurality of holes and securing the keeper in the cavity.
A splice device is provided that includes a main housing, a first set of jaws, and a movement conversion assembly. The first set of jaws is in the main housing and depend outward along a conductor axis. The first set of jaws receive a first electrical conductor therein. The movement conversion assembly is in the main housing and includes a driver operatively associated with the first set of jaws so that a tightening movement of the driver is converted into a clamping force of the first set of jaws on the first electrical conductor.
H01R 4/52 - Clamped connections; Spring connections using a cam, wedge, cone or ball which is spring loaded
H01R 25/00 - Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
H01R 11/09 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations being identical
An electrical compression connector for connecting a plurality of conductors, the compression connector including a connector body of compressible material adapted to be inserted into a crimping tool having two opposed die surfaces for the compression of the connector body, the connector body including a first conductor portion and a second conductor portion. The first conductor portion includes a pair of side walls including a first side wall and a second side wall joined by a bottom wall, and a first conductor opening between the pair of side walls and the bottom wall and at least one insulation piercing member. The second conductor portion includes at least one second conductor opening extending at least partially through the connector body.
H01R 4/2495 - Insulation penetration combined with permanent deformation of the contact member, e.g. crimping
H01R 4/18 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
H01R 4/2407 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation having saw-tooth projections
H01R 11/03 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members
An enclosure for containing an electrical connector for connecting a plurality of conductors, the enclosure including a first cover half, a second cover half, at least one first seal member positionable between the first cover half and the second cover half, a first latch member pivotably attached to the first cover half and a second latch member pivotably attached to the second cover half. When the first cover half is mated with the second cover half with the at least one seal member positioned between the first cover half and the second cover half, the first latch member is pivoted to latch with the second cover half and the second latch member is pivoted to latch with the first cover half.
An enclosure for containing an electrical connector connecting a plurality of conductors, the enclosure including a first enclosure portion and a second enclosure portion and at least one strain relief assembly for securing at least one of the plurality of conductors. The first enclosure portion and the second enclosure portion when joined are configured to receive the at least one strain relief assembly.
A circuit interrupting device including a vacuum interrupter (110), a capacitor (215), and an insulating housing (125). The vacuum interrupter includes a vacuum bottle (200) and first and second contacts (205, 210) disposed within the vacuum bottle. The second contact is movable relative to the first contact between a closed position and an open position. The capacitor is electrically connected in parallel with the vacuum interrupter and wound around an outer surface of the vacuum bottle. The insulating housing encloses the capacitor and the vacuum interrupter.
H01H 33/64 - Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid wherein the break is in gas
H01H 33/60 - Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
H01H 75/04 - Reset mechanisms for automatically reclosing a limited number of times
A circuit interrupting device including a vacuum interrupter (110), a separable ceramic capacitor (1900), and an insulating housing (125). The vacuum interrupter includes a vacuum bottle (200) and first and second contacts (205, 210) disposed within the vacuum bottle. The second contact is movable relative to the first contact between a closed position and an open position. The separable ceramic capacitor is electrically connected in parallel with the vacuum interrupter provided over an outer surface of the vacuum bottle. The insulating housing encloses the separable ceramic capacitor and the vacuum interrupter.
H01H 33/59 - Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
H01H 33/664 - Contacts; Arc-extinguishing means, e.g. arcing rings
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
A recloser including a circuit interrupter including a first contact and a second contact movable relative to the first contact between a closed position and an open position and an actuator coupled to the circuit interrupter, the actuator including a plunger coupled to the second contact for closing and opening the circuit interrupter and a single coil used for driving the plunger. The recloser further includes a sensor board supported by the actuator, the sensor board including a plurality of position sensors for detecting a position of the plunger, an external indicator for indicating a condition of the circuit interrupter, the external indicator including a first display portion that indicates the closed position and a second display portion moveable relative to the first display portion and that indicates the open position, and a handle for mechanically opening and closing the circuit interrupter without any electrical assistance.
H01H 83/04 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
H01R 13/713 - Structural association with built-in electrical component with built-in switch the switch being a safety switch
H01R 24/78 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts
A breakaway threaded fastener is provided that includes a hollow stud, a pin, and a cap. The stud has a hollow cavity, a closed end, an open end with an upper surface, a wall, and an outer surface, which includes an external thread. The pin is in the hollow cavity with a first end at the closed end of the hollow stud and a second end proximate the open end of the hollow stud. The cap has another hollow cavity with a closed end, an open end, an inner surface, and an internal thread. The cap is threadably engaged to the open end of the hollow stud via the internal and external threads so that the second end of the pin abuts the inner surface of the cap with a gap remaining between the upper surface of the hollow stud and the inner surface of the cap.
Reconfigurable modular fiber optic cassettes are provided including a cassette assembly having first and second half-cassettes each having one or more sides extending from a surface, assembly tabs formed in/on the sides wherein, in a mirrored orientation of the first and second half-cassettes, the assembly tabs interlock to form the cassette assembly, an interior volume of the cassette assembly, at least one opening in the sides sized to receive an adapter panel, and mounting tabs extending from the sides, the mounting tabs configured to interlock with mounting slots of an adapter plate, an adapter panel including the adapter plate having the mounting slots and adapter slots between the mounting slots, and one or more adapters mounted in the adapter slots.
Electrical wiring devices that incorporate screwless wire terminal connections are described. The electrical wiring devices include for example, single and duplex blade-type electrical receptacles, blade-type locking electrical receptacles, single or multi-pole electrical switches, combination switches and blade-type receptacles, blade-type plugs for electrical cords and blade-type connectors for electrical cords. The electrical wiring devices include a plurality of contact assemblies. Each contact assembly includes a wire terminal and an activating member.
H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H01R 4/50 - Clamped connections; Spring connections using a cam, wedge, cone or ball
H01R 11/05 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations having different types of direct connections
H01R 13/04 - Pins or blades for co-operation with sockets
Electrical wiring devices that incorporate screwless wire terminal connections are described. The electrical wiring devices include for example, single and duplex blade-type electrical receptacles, blade-type locking electrical receptacles, single or multi-pole electrical switches, combination switches and blade-type receptacles, blade-type plugs for electrical cords, blade-type connectors for electrical cords, male and female inlet connectors and pin-in-sleeve connectors. The electrical wiring devices include a plurality of contact assemblies having a horizontally moving or rotating activating member that permits wires to be inserted into or removed from the contact assemblies.
H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H01R 4/50 - Clamped connections; Spring connections using a cam, wedge, cone or ball
H01R 11/05 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations having different types of direct connections
H01R 13/04 - Pins or blades for co-operation with sockets
Electrical wiring devices that incorporate screwless wire terminal connections are described. The electrical wiring devices include for example, single and duplex electrical receptacles, locking electrical receptacles, single or multi-pole electrical switches, combination switches and receptacles, plugs for electrical cords, connectors for electrical cords, male and female inlet connectors, pin-in-sleeve connectors and multi-pole or multi-phase control switches. The electrical wiring devices include a plurality of contact assemblies. Each contact assembly includes a wire terminal and an activating member.
H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H01R 4/50 - Clamped connections; Spring connections using a cam, wedge, cone or ball
H01R 11/05 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations having different types of direct connections
H01R 13/04 - Pins or blades for co-operation with sockets
Electrical wiring devices that incorporate screwless wire terminal connections are described. The electrical wiring devices include for example, single and duplex blade-type electrical receptacles, blade-type locking electrical receptacles, single or multi-pole electrical switches, combination switches and blade-type receptacles, blade-type plugs for electrical cords, blade-type connectors for electrical cords, male and female inlet connectors, pin-in-sleeve connectors and motor control switches. The electrical wiring devices include a plurality of contact assemblies that have a wire terminal and an activating member can be removably attached to a housing of the electrical wiring device and selectively interacts with the wire terminal.
H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H01R 4/50 - Clamped connections; Spring connections using a cam, wedge, cone or ball
H01R 11/05 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations having different types of direct connections
H01R 13/04 - Pins or blades for co-operation with sockets
Electrical wiring devices that incorporate screwless wire terminal connections are described. The electrical wiring devices include for example, single and duplex blade-type electrical receptacles, blade-type locking electrical receptacles, single or multi-pole electrical switches, combination switches and blade-type receptacles, blade-type plugs for electrical cords and blade-type connectors for electrical cords. The electrical wiring devices include a plurality of contact assemblies. Each contact assembly includes a wire terminal and an activating member.
H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H01R 4/50 - Clamped connections; Spring connections using a cam, wedge, cone or ball
H01R 11/05 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations having different types of direct connections
H01R 13/04 - Pins or blades for co-operation with sockets
Electrical wiring devices that incorporate screwless wire terminal connections are described. The electrical wiring devices include for example, single and duplex blade-type electrical receptacles, blade-type locking electrical receptacles, single or multi-pole electrical switches, combination switches and blade-type receptacles, blade-type plugs for electrical cords, blade-type connectors for electrical cords, male and female inlet connectors and pin-in-sleeve connectors. The electrical wiring devices include a plurality of contact assemblies and a pushbutton type activating member that interacts with the contact assemblies.
H01R 13/629 - Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H01R 4/50 - Clamped connections; Spring connections using a cam, wedge, cone or ball
H01R 11/05 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations having different types of direct connections
H01R 13/04 - Pins or blades for co-operation with sockets
An electrical conduit body assembly is provided. The assembly includes a body portion, a cover, and a movable connection. The movable connection connects the body portion and the cover to one another so that the cover can be moved with respect to the body portion between an open state and a closed state in a manner that prevents the cover from being misplaced or disassociated from the body portion.
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution box; Ensuring electrical continuity in the joint
H02G 3/08 - Distribution boxes; Connection or junction boxes
A clamp including a body having a top portion hinged to a bottom portion, each of the top portion and the bottom portion including a rounded inner surface for receiving an elongated element, a ratchet on the top portion having a plurality of teeth, an opening in the bottom portion for removably receiving the ratchet, and a retaining assembly for adjustably engaging a portion of the plurality of teeth in the opening, the retaining assembly being releasable without tools.
H02G 3/32 - Installations of cables or lines on walls, floors or ceilings using mounting clamps
F16L 3/10 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two members engaging the pipe, cable or protective tubing
27.
FIBER OPTIC CONNECTOR INSERTION AND EXTRACTION TOOLS HAVING MULTIPLE TIP GEOMETRIES
An insertion and extraction tool for a fiber optic connector is provided. The tool includes a first frame member, second frame member, and a pivot connection. The pivot connection secures the first and second frame members to one another for movement between an open position and a closed position. The frame members define tips at one side of the pivot connection and handles at an opposite side of the pivot connection. The frame members, at least at the tips, have a cross sectional width equal to or smaller than the fiber optic connector. The frame members are configured so that the tips define a plurality of discrete gripping regions.
H01R 43/26 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
G02B 6/46 - Processes or apparatus adapted for installing optical fibres or optical cables
An arrester assembly including a first support member and a constant tension spring including a first end and a second end. The first end is mechanically coupled to the first support member such that the second end of the constant tension spring extends in a downward direction. The arrester assembly further includes a disconnector assembly that is electrically connected to the second end of the constant tension spring, a ground connector that is electrically connected to aground, and an arrester that is electrically connected between the disconnector assembly and the ground connector.
H01T 1/14 - Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
H02H 3/20 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H02H 7/24 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for spark-gap arresters
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
29.
IMPROVED GRADED SPARK GAP DESIGN FOR INTERNALLY GAPPED SURGE ARRESTER
An arrester including a metal oxide varistor (MOV) disc and a spark gap assembly electrically connected in series with the MOV disc. The spark gap assembly includes a spark gap and a frequency-dependent grading capacitor electrically connected in parallel with the spark gap.
H01C 3/02 - Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven, or formed as grids arranged or constructed for reducing self-induction, capacitance, or variation with frequency
H01C 3/08 - Dimension or characteristic of resistive element changing gradually or in discrete steps from one terminal to another
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
H02H 9/06 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
H01C 7/10 - Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material voltage responsive, i.e. varistors
A weld metal assembly is provided that includes a tube containing an exothermic reaction weld metal, a metal disk, and an outer packaging having a sealed area in which the tube and the metal disk are contained. The assembly may further include a cap on the tube so as to contain the weld metal in the tube.
B23K 35/34 - Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material comprising compounds which yield metals when heated
F24V 30/00 - Apparatus or devices using heat produced by exothermal chemical reactions other than by combustion
31.
REPAIR CLIPS FOR GANG BOXES AND ELECTRICAL ASSEMBLIES HAVING SUCH REPAIR CLIPS
A repair clip for a gang box with a damaged threaded opening is provided. The repair clip includes a top wall, a front wall, and a rear wall. The top wall has a replacement opening that is positionable over the damaged threaded opening. The front wall has a leg depends from the top wall at a front shoulder region. The front wall and/or the front shoulder region are elastically deformable so as to apply a clamping force on an inner wall of the gang box. The rear wall depends from the top wall at a rear shoulder region, the rear wall and/or the rear shoulder region being elastically deformable so as to apply a clamping force on an outer wall of the gang box. The replacement opening is elongated in a direction between the front and rear walls.
A cover plate that is connectable to an electrical box includes a body configured to mount to a stud, a brace assembly, in a gang application, or, when the cover plate is a first cover plate and the body is a first body that is mounted to a first side of the stud, a second body of a second cover plate can overlap a portion of the first body to be mounted to a second side of the stud at the same time that the first body of the first cover plate is mounted to the first side of the stud.
An electrical box assembly is provided that includes an electrical box and a bracket connected to the electrical box with the bracket being configured to mount the electrical box to a stud, a brace assembly, in a gang application, or, when the electrical box is a first electrical box and the bracket is a first bracket that is mounted to a first side of the stud, a second bracket connected to a second electrical box can be mounted to a second side of the stud at the same time that the first bracket is mounted to the first side of the stud so that at least a portion of the first bracket is at the same height of at least a portion of the second bracket on the stud. A flat blank for a brace is additionally provided that includes a middle portion connected between a first strip and a second strip, a first cutout being formed between the first strip and the middle portion, and a second cutout being between the second strip and the middle portion.
A cover plate that is connectable to an electrical box includes a body configured to mount to a stud, a brace assembly, or in a gang application on opposite sides of the stud.
A lightweight composite utility cover includes an upper surface formed of a long fiber thermoplastic composite structure. An underground enclosure also includes a side wall formed of a long fiber reinforced thermoplastic material. A method of making an underground enclosure also includes Long Fiber thermoplastic (LFT) injection and/or compression molding a side wall of the underground enclosure.
A tool for removing insulation from a cable is provided. The tool includes a housing, a blade, a ramp assembly, and a clearance window. The housing has a central opening. The blade is secured to the housing so that the cutting edge protrudes into the central opening. The ramp assembly has a cable support portion, a ramp base and a biasing member. The cable support portion is pivotally connected to the ramp base which is secured to the housing so that the ramp base protrudes into the central opening opposite the cutting edge. The biasing member biases the cable support portion away from the ramp base towards the central opening and the cutting edge. The clearance window is positioned so that an insulation chip produced during removal of the insulation, when the housing or cable are rotated with respect to one another, travels through the clearance window.
H02G 1/12 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
37.
ARC FAULT DETECTION THROUGH MIXED-SIGNAL MACHINE LEARNING AND NEURAL NETWORKS
A circuit interrupting device including a line terminal, a wideband current sensor configured to measure a current flowing through the line terminal, a zero cross detection circuit configured to measure a voltage and frequency of the line terminal, and a microcontroller including an electronic processor. The microcontroller is configured to apply a digital filter to a line current measurement signal received from the wideband current sensor and estimate spectral density of the filtered line current measurement signal. The microcontroller is further configured to calculate an arcing characteristic based on the spectral density, determine whether an arc fault is present within the circuit interrupting device based on a comparison of the arcing characteristic to one or more thresholds, and activate an interrupting device when an arc fault is present.
H01H 77/10 - Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
H02H 3/40 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to ratio of voltage and current
H01H 83/02 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
H01H 83/04 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
A ground assembly for movable member includes an electrical ground connection that does not interfere with the movement and operation of the movable member. The movable member can be a sliding member, such as a sliding barrier, gate or closure member. In one embodiment, the ground assembly includes an electrical connector that moves relative to a fixed electrical grounding member. The electrical connector is fixed to the movable member and movable relative to the grounding member. The electrical connector moves along a length of the grounding member while maintaining contact with the electrical grounding member to provide a continuous grounding connection during movement of the movable member.
A load break tool for opening a high load electrical switch having a first switch contact and a second switch contact. The load break tool includes a main body extending along a longitudinal axis between a first end and a second end. The main body is movable between an extended configuration and a retracted configuration. A first contact is coupled to the first end and configured to selectively couple with the first switch contact. A second contact is coupled to the second end and configured to selectively couple with the second switch contact. In the retracted configuration the first contact is in electrical communication with the second contact. A spring assembly is mounted in the main body for biasing the main body to the retracted configuration, the spring assembly including a compression spring.
The present disclosure provides descriptions of configurations for wire connectors used to splice low voltage electrical conductors or to splice high voltage electrical conductors. The wire connectors may be coupled to form a wire connector assembly. Each wire connector includes a base, a cover, a first cover coupling assembly and a second first cover coupling assembly. The base has an upper wall and a lower wall and can be divided into a first end portion, a second end portion and a central portion between the first end portion and the second end portion. The cover has a main cover member, a first movable cover member movably connected to a first side of the main cover member and a second movable cover member movably connected to a second side of the main cover member. The main cover member includes a plurality of contact chambers, where each contact chamber includes at least one electrical contact positioned within a cavity of the contact chamber.
H01R 11/01 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the form or arrangement of the conductive interconnection between their connecting locations
H01R 11/20 - End pieces terminating in a needle point or analogous contact for penetrating insulation or cable strands
H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
H01R 43/20 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
H01R 11/09 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations being identical
A sensing device having an input-output module configured to interface with an external device and a communication module. The sensing device further including one or more electronic processors configured to receive parameters associated with the external device via the input-output module and package the received data into a message. The electronic processors are also configured to determine whether the message is able to be transmitted and transmit the message in response to determining the message can be transmitted.
G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
G01L 1/20 - Measuring force or stress, in general by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
B81B 7/04 - Networks or arrays of similar microstructural devices
B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems (MEMS)
42.
WILDLIFE GUARD ASSEMBLIES FOR LINE POST INSULATORS
A wildlife guard assembly is provided that includes two cover sections, a biasing member, and a toggle action lever mechanism. The cover sections are hinged so that the cover sections, when in a closed position, a cavity to capture a line post insulator is defined. The biasing member normally biases the cover sections to the closed position. The lever mechanism is connected to the cover sections and has an over-center position that releasably holds the two cover sections in an open position. The lever mechanism is positioned in the cavity such that, during installation on the line post insulator, the line post insulator interacts with the lever mechanism to move the lever mechanism from the over-center position to allow the biasing member and the lever mechanism to move the cover sections to the closed position.
H01B 17/58 - Tubes, sleeves, beads or bobbins through which the conductor passes
H02G 7/00 - Overhead installations of electric lines or cables
H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables
H01B 19/00 - Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
H01B 17/44 - Structural association of insulators with corona rings
H01B 17/06 - Fastening of insulator to support, to conductor, or to adjoining insulator
A flight diverter assembly is provided that includes a first section, a second section, a biasing member, and a toggle action lever mechanism. The first and second sections are movable with respect to one another about a hinge axis between an open position and a closed position. The biasing member normally biasing the first and second sections to the closed position. The toggle action lever mechanism is connected to the first and second sections and has an over-center position that corresponds with the open position. The toggle action lever mechanism releasably holds the first and second sections in the open position when in the over-center position, but interacts, during installation on a conductor, with the conductor to move the toggle action lever mechanism from the over-center position to move the first and second sections to the closed position.
A01M 29/06 - Scaring or repelling devices, e.g. bird-scaring apparatus using visual means, e.g. scarecrows, moving elements, specific shapes, patterns or the like
A01M 29/00 - Scaring or repelling devices, e.g. bird-scaring apparatus
A01M 29/32 - Scaring or repelling devices, e.g. bird-scaring apparatus preventing or obstructing access or passage, e.g. by means of barriers, spikes, cords, obstacles or sprinkled water specially adapted for birds, e.g. spikes
A01M 29/30 - Scaring or repelling devices, e.g. bird-scaring apparatus preventing or obstructing access or passage, e.g. by means of barriers, spikes, cords, obstacles or sprinkled water
H02G 1/02 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for overhead lines or cables
A01K 39/00 - Feeding or drinking appliances for poultry or other birds
Portable, hand-held hydraulic tools having a modular power unit within a handle assembly and a working head assembly mated to the handle assembly. The working head assembly can have a pair of movable jaws or a movable jaw and a fixed jaw. The jaws can be configured to perform different operating operations, such as crimping operations and cutting operations.
B25B 27/10 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
A locking dog assembly (100) including a body (110) including inner cavity (112) with a lower opening, a first locking dog (120a) at least partially extending through a first side of the body and displaceable into and out of the inner cavity, a second locking dog (120b) at least partially extending through a second side of the body, opposite the first side, and displaceable into and out of the inner cavity, and a mechanism (132) for simultaneous displacement of the first and second locking dogs with mechanical advantage.
An identification system, for use with a recessed floor box that provides access to one or more wiring devices, includes a label holder configured to couple with a plate mounted in the recessed floor box and a label removably stored in the label holder. The label includes information about the one or more wiring devices.
G09F 3/20 - Casings, frames, or enclosures for labels for adjustable, removable, or interchangeable labels
H01H 9/18 - Distinguishing marks on switches, e.g. for indicating switch location in the dark; Adaptation of switches to receive distinguishing marks
G09F 7/10 - Signs, plates, panels, or boards using readily-detachable elements bearing or forming symbols the elements being secured or adapted to be secured by means of grooves, rails, or slits and slidably mounted
Electrical wiring devices that incorporate clamp-type wire terminal connections are described. The electrical wiring devices include for example, single and duplex blade-type electrical receptacles, blade-type locking electrical receptacles, single or multi-pole electrical switches, combination switches and blade-type receptacles, blade-type plugs for electrical cords and blade-type connectors for electrical cords. The electrical wiring devices include a plurality of contact assemblies. Each contact assembly includes a wire terminal having a wire manager and a plunger.
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H01R 11/05 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations having different types of direct connections
Non-metallic conduit hubs are provided herein, having a flange configured for attachment to an electrical box, a receiving member extending from a first side of the flange and defining a bore sized for receiving a conduit, an indexing indicator extending radially outward from the receiving member for providing a tactile indication of an orientation of the conduit hub, and an alignment member extending from a second side of the flange and having an outer diameter sized for insertion into an ingress/egress port of the electrical box, wherein the bore extends through the receiving member, the flange, and the alignment member to facilitate routing of wires from the conduit into the electrical box.
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution box; Ensuring electrical continuity in the joint
H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details
H02G 3/10 - Distribution boxes; Connection or junction boxes for surface mounting on a wall
F16L 41/08 - Joining pipes to walls or pipes, the joined pipe axis being perpendicular to the plane of a wall or to the axis of another pipe
H02G 3/22 - Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
49.
PORTABLE GROUND FAULT CIRCUIT INTERRUPTER AND/OR ARC FAULT CIRCUITY INTERRUPTER AND METHOD OF OPERATING THE SAME
A module of an AM/PD device including a PCB and a bus bar including one or more bus bar contacts. The module further including one or more contact arms having one or more moveable contacts configured to be in a first position and a second position, wherein when in the first position the one or more moveable contacts are in physical contact with the one or more bus bar contacts and when in the second position the one or more moveable contacts are physically separated from the one or more bus bar contacts. The module further including a coil assembly coupled to an actuating device, the actuating device coupled to the one or more contact arms. Wherein the coil assembly, via the actuating device, moves the one or more moveable contacts from the first position to the second position.
A multi-stage trigger assembly for portable, hand-held, battery powered tools is provided. The tool may be configured as a crimping tool, a cutting tool or other type of tool. The tool has an in-line handle assembly and a working head assembly. The trigger assembly has a first stage that is a manual operation and a second stage that is an electro-mechanical operation.
An adjustable light fixture includes a frame configured to rotatably connect to a support and rotate about a first axis. A lamp assembly is connected to the frame. The lamp assembly includes a housing defining a cavity. A light emitter is supported in the cavity. A lens is connected to the housing. A pivot assembly rotatably couples the lamp assembly to the frame about a second axis offset from the first axis.
An adaptive seal for a cable gland including a body including a compression portion defining a distal surface and an insertion portion defining a proximal surface, the compression portion having an outer diameter greater than an outer diameter of the insertion portion, a plurality of insertion apertures in the proximal surface, a plurality of tubes extending from the distal surface, each having a closed end and each at least partially tapering in diameter from the distal end of the body to the closed end, and a plurality of channels, each defined between one of the insertion apertures of the body and one of the closed ends of a respective one of the tubes, wherein the body and the plurality of tubes are integrally formed a single piece of elastic material.
F16L 5/10 - Sealing by using sealing rings or sleeves only
H01B 17/58 - Tubes, sleeves, beads or bobbins through which the conductor passes
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution box; Ensuring electrical continuity in the joint
H02G 3/08 - Distribution boxes; Connection or junction boxes
H02G 15/117 - Cable junctions protected by boxes, e.g. by distribution, connection or junction boxes for multiconductor cables
A pedestal assembly includes a cover having a half egg shape, dome shape, or hemispheroid shape; a concrete/ground box connected to the cover; and a receptacle housing having one or more pre- receptacles housed in between the cover and concrete/ground box. The cover is movable from a covered position covering the receptacle housing to an uncovered position allowing access to the receptacle housing.
An electrical device enclosure is provided that includes an electrical device; a telescoping support member having the electrical device supported thereon; an electrical device region, the telescoping support member being configured to move the electrical device into a stored position in a first space defined in the electrical device region and to move the electrical device into a deployed position outside of the first space; and a hood pivotally connected to the electrical device for movement between a hooded position and an unhooded position. The hood and electrical device region have cooperating surfaces, the cooperating surfaces being configured and positioned so that movement of the electrical device to the stored position moves the hood into sealed contact with the electrical device to define a weather-tight space around the electrical device.
An electrical box includes an integral conduit receiving port and a weatherproof conduit retention assembly provided in the conduit receiving port, The conduit retention assembly includes a conduit gripping member and a conduit release member.
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution box; Ensuring electrical continuity in the joint
H02G 3/08 - Distribution boxes; Connection or junction boxes
A control system for a multi-phase power system includes a first phase line, a second phase line, and a third phase line. The control system includes a plurality of regulator controls including a first regulator control configured to control a first tap changer associated with the first phase line, a second regulator control configured to control a second tap changer associated with the second phase line, a third regulator control configured to control a third tap changer associated with the third phase line, and an electronic processor coupled to the first regulator control, the second regulator control, and the third regulator control. The electronic processor is configured to regulate the voltage of the multi-phase system using the first, second, and third regulator controls.
G05F 1/14 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
G05F 1/147 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch
G05F 1/153 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch controlled by discharge tubes or semiconductor devices
G05F 1/16 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices
G05F 1/20 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with discharge tubes or semiconductor devices semiconductor devices only
G05F 1/22 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices combined with separate magnetic control devices having a controllable degree of saturation
A submersible cable connector for connecting a plurality of cable ends is provided. The submersible cable connector includes a connector body and an encapsulation member covering the connector body. The connector body has one or more cable receiving apertures or cavities and one or more fastener receiving apertures in communication with the cable receiving apertures. The encapsulation member includes integrally molded tubular cable ports in communication with the cable receiving apertures, spaced apart tubular fastener ports in communication with the fastener receiving apertures, and tethered sealing cap assemblies monolithically or integrally formed into the encapsulation member, and each configured to seal respective one of the fastener ports.
H01R 13/44 - Means for preventing access to live contacts
H01R 13/52 - Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
H01R 11/09 - Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating characterised by the type of the connecting locations on the individual element or by the type of the connections between the connecting locations and the conductive members the connecting locations being identical
Tool monitoring systems and beacon devices used in the tool monitoring systems are provided. The tool monitoring systems permits one or more beacon devices to upload tool information to a cloud-based computing system either directly or indirectly. Direct communication between the beacon devices and the cloud-based computing system 12 utilizes a communication module and a server. Indirect communication between the beacon devices and the cloud-based computing system utilizes a mobile application running on a mobile computing device or platform and a web services running on the server. The beacon devices are worn by a tool user or installed in a fixed location and communicate with one or more tools to retrieve tool information from the one or more tools and upload the tool information to the cloud-based computing system's database.
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
H04W 4/029 - Location-based management or tracking services
59.
USER INTERFACE CONTROL SERVER AND METHOD FOR REMOTE CONTROL MANAGEMENT OF MARINE DOCK ELECTRIC CHARGING STATIONS
A marine power pedestal is disclosed. The power pedestal is configured to connect to a mobile device comprising a main body, one or more electrical power units disposed in the main body and configured to conduct power to a marine vessel, one or more display screens, one or more sensors. A controller including a network interface is configured to communicate with a mobile device via a communication network, transmit data to a server via the communication network, and execute commands received, via the communication network, from the server or the mobile device.
B60L 53/30 - Constructional details of charging stations
B60L 53/60 - Monitoring or controlling charging stations
B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
A wiring device including a first printed circuit board (PCB) that includes a first, direct current (DC) output port and a second DC output port. The wiring device further includes a second PCB electrically connected with the first PCB, the second PCB including a. planar transformer integrated with a surface of the second PCB and configured to output power at one or more DC voltage levels, a switch connected to the planar transformer, and. a microcontroller. The microcontroller includes an electronic processor and is configured to control delivery of power from the planar transformer to at least one of the first DC output port and the second DC output port using the switch. The switch may have a Gallium Nitride (GaN) chemistry or a Silicon Carbide (SiC) chemistry.
An above surface power distribution assembly includes a housing including a first housing portion supported by a support surface and a second housing portion movably coupled to the first housing portion. The second housing portion is movable relative to the first housing portion between a non-use position in which the second housing portion is secured relative to the first housing portion, and a use position in which the second housing portion is unsecured relative to the first housing portion. The power distribution assembly further includes a power distribution unit positioned within the housing, the power distribution unit including at least one power outlet in electrical communication with a power source. When the second housing portion is in the non-use position, the at least one power outlet is inaccessible, and when the second housing portion is in the use-position, the at least one powder outlet is accessible.
A compact swing arm assembly having a mounting pad, a base, and an extension. The extension is secured to the base at a slot so that the extension is pivotally movable with respect to the base about a pin through the slot and is translationally moveable along the slot between a stowed position and a deployed position. The slot has a first end proximate the mounting pad and a second end remote from the mounting pad. The base has a first tab and a second tab that. The extension, in the stowed position, is positioned with the pin in the slot proximate the second end and a first side of the extension is against the first tab at a stowed point of contact. The extension, in the deployed position, is positioned with the pin proximate the first end and the first side abutting the first and second tabs at two deployed points of contact.
H02G 3/08 - Distribution boxes; Connection or junction boxes
H05K 5/00 - Casings, cabinets or drawers for electric apparatus
F16M 13/02 - Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
63.
ELECTRICAL SWITCH GEAR ASSEMBLIES WITH FOLDING FRAMES AND METHODS OF INSTALLING
An electrical switch gear assembly is provided. The assembly includes two or more insulators, a frame, and a single pivot axis. The two or more insulators are connected to the frame. The frame has a first beam and a second beam with the single pivot axis securing the first and second beams to one another so that the first and second beams can move in a scissors action between a folded state and an unfolded state about the single pivot axis.
H01H 31/18 - Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with angularly-movable bridging contact or contact-carrying member actuated through the movement of one or more insulators
H01H 31/20 - Air-break switches for high tension without arc-extinguishing or arc-preventing means with bridging contact that is not electrically connected to either line contact in open position of switch with angularly-movable bridging contact or contact-carrying member actuated through the movement of one or more insulators at least one insulator being rotatable about its own geometrical axis
Tracer wire jumper assemblies include a first tracer wire connector, a second tracer wire connector and a jumper wire between the first tracer wire connector and the second tracer wire connector. Each tracer wire connector has housing and at least one contact assembly. The housing includes a base and a cover that is movably secured to the base. The cover is movable between a closed position and an open position. The contact assembly includes a termination portion and at least one contact. The jumper wire has each end electrically connected to the termination portion of one of the tracer wire connectors. Tracer wire pigtail assemblies include a tracer wire connector and a pigtail wire. The tracer wire connector has a housing. The housing includes a base and a cover. The cover is movably secured to the base so that the cover is movable between a closed position and an open position. The base also includes a contact assembly having a termination portion and at least one contact. The pigtail wire has a first end electrically connected to the termination portion of the contact assembly and a free second end.
H01R 4/2416 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
H01R 43/01 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting unstripped conductors to contact members having insulation cutting edges
A guard assembly includes a main body that is sized to fit around insulator bushing equipment and forms an opening, and a plurality of faceplates that are interchangeable to connect to the main body and cover at least a portion of the opening.
A circuit interrupting device including a phase conductor, a neutral conductor, an interrupter configured to disconnect the phase conductor and the neutral conductor from a load, and a sensor configured to generate a signal indicative of current flowing through the phase conductor and the neutral conductor. The circuit interrupting device further includes a microcontroller that includes an electronic processor and is electrically connected to the first sensor and the interrupter. The microcontroller is configured to generate a reference signal, receive a first signal from the sensor, determine whether a difference between a voltage of the first signal and a voltage of the reference signal exceeds a threshold, determine whether the microcontroller has performed a ground fault self-test, and activate the interrupter when the difference exceeds the threshold and the microcontroller has not performed the ground fault self-test.
H01H 77/10 - Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
H02H 3/16 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to fault current to earth, frame or mass
H02H 3/40 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to ratio of voltage and current
H01H 83/02 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
H01H 83/04 - Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
67.
ARRESTER ASSEMBLY PROVIDING ENHANCED PROTECTION AGAINST SHORT CIRCUITS AND FIRE RISK
An arrester assembly including a first terminal electrically connected to an energized conductor and a second terminal electrically connected to a ground conductor. The arrester assembly further includes a plurality of arrester modules electrically connected in series between the first terminal and the second terminal and a disconnect device electrically connected in series with the plurality of arrester modules between the first terminal and the second terminal. Components of the arrester assembly are coordinated to disconnect or isolate failed surge arresters without creating a short circuit condition.
H02H 9/06 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
H02H 3/22 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess voltage of short duration, e.g. lightning
H02H 7/24 - Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from norm for spark-gap arresters
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
A tap plug for engaging a conductor lug and a stud is provided. The tap plug includes a housing, a first member, and a second member. The housing has an inner bore defining a longitudinal axis. The first member is in the inner bore and is rotatable with respect to the housing about the longitudinal axis. The first member has an external thread at a first end, where the external thread engages the conductor lug. The second member is rotatable with respect to the housing about the longitudinal axis and has an internal thread at the first end. The first end is open so that the internal thread can engage the stud.
H01R 13/53 - Bases or cases for heavy duty; Bases or cases with means for preventing corona or arcing
H01R 13/533 - Bases or cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
H01R 11/11 - End pieces or tapping pieces for wires or cables, supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member
H01R 43/00 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
H01R 4/30 - Clamped connections; Spring connections using a screw or nut clamping member
H01R 4/56 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation one conductor screwing into another
A button assembly is provided that includes a plug, a button, and a biasing member. The plug can be received in an inner pole section. The button is slidably received in the plug for movement between a locked position extended from the plug and an unlocked position retracted with respect to the plug. The biasing member biases the button to the locked position. The button has a land region, a cammed region, and a locking edge. The cammed region slopes from the land region in a direction towards the locking edge. The land region is remote from any pinch point formed between the plug and the locking edge.
An electrical box assembly is configured for mounting an electrical device such as an electrical wiring device. The electrical box assembly includes a box, such as a metal or non-metallic box, with an open front end having an inwardly extending shoulder forming a recess at the front end. A mounting plate is attached to the shoulder for mounting the electrical device. The mounting plate can be a metal mounting plate or made of a non-metallic material. The mounting plate has an open portion and recessed surfaces on opposite sides of the open portion. A movable mounting arm is pivotally coupled to the mounting plate on one side of the open portion to pivot between an open position and a closed position overlying the open portion.
An instant restrike igniter for use with a high-intensity discharge (HID) lamp and having a bleeder circuit including a resistor in parallel with a capacitor. The bleeder circuit in electrical communication with a voltage source. A transformer is in electrical communication with the bleeder circuit. The transformer includes a first winding that is in communication with and powers a lamp and a second winding. A triggering circuit is in electrical communication with the second winding of the transformer and the bleeder circuit. The triggering circuit has a minimum holding current of 50 mA and is configured to discharge the capacitor to generate high voltage pulses that are sent, via the transformer, to the lamp to reignite the lamp after a power interruption that extinguishes the lamp.
H05B 41/231 - Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac having no starting switch for lamps not having an auxiliary starting electrode for high-pressure lamps
H05B 41/292 - Arrangements for protecting lamps or circuits against abnormal operating conditions
H05B 41/46 - Circuits providing for substitution in case of failure of the lamp
An electrical connector includes a clamp body having a substantially C-shaped configuration defining an interior cavity. A wedge is configured to be inserted into the clamp body. The wedge has a wedge body defining a conductor channel and a plurality of fins extending from the wedge body into the conductor channel. The plurality of fins is oriented to pierce an insulation layer of a conductor when the wedge is inserted into a clamp body.
H01R 4/50 - Clamped connections; Spring connections using a cam, wedge, cone or ball
H01R 4/00 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
H01R 4/24 - Connections using contact members penetrating or cutting insulation or cable strands
H01R 4/28 - Clamped connections; Spring connections
An ignition system for initiating exothermic welds is provided. The ignition system holds a quantity of a reaction mixture in a hopper. The hopper is closed at the bottom by a movable gate. When the gate is opened, powder falls from the hopper, though a passage, and through an ignition chamber. High voltage electrodes are provided in the ignition chamber. As the powder falls through the ignition chamber, the electrodes are energized, generating an electrical arc. The arc ignites the falling powder. The ignited powder falls from the bottom of the chamber and into the reaction chamber of an exothermic mold, where the ignited powder initiates a thermite reaction that generates molten metal to form an exothermic weld.
This application discusses components that can be used to prevent flame or hot gas transmission from the inside of a luminaire enclosure to the outside of a luminaire enclosure due to an internal explosion, thereby yielding an explosion encapsulating luminaire enclosure. Accordingly, the components and assemblies described herein can be safely integrated with systems that operate in the presence explosive gas.
Various embodiments described herein are directed to luminaire components that prevent flame transmission from the inside of a luminaire to the outside of a luminaire. In certain aspects, the luminaire can be used in an environment containing flammable gas, for example, in specialized lab work or testing applications. This application discusses components that can be used to prevent flame transmission from the inside of a luminaire to the outside of a luminaire, thereby yielding a flame encapsulating luminaire. Accordingly, the components and assemblies described herein can be safely integrated with systems that operate in the presence flammable gas.
A guard assembly is provided that includes a guard cover portion to cover a power line assembly. The power line assembly has an insulator. The guard assembly also has a clamp that connects to the insulator. The guard cover portion clips onto the clamp.
F16B 2/06 - Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
F16L 3/10 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two members engaging the pipe, cable or protective tubing
F16L 3/12 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
F16L 3/123 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing and extending along the attachment surface
H01R 13/58 - Means for relieving strain on wire connection, e.g. cord grip
H01R 4/28 - Clamped connections; Spring connections
An electrical box including a central housing with a first side opening, a second side opening opposite the first side opening, and a rear opening, each of the first and second side openings configured to receive an electrical or data interface device, a first extension compartment around the first side opening, the first extension compartment including a first door, a second extension compartment around the second side opening, the second extension compartment including a second door, and an exterior cover extending at least partially over the central housing, the first extension compartment, and the second extension compartment.
A loadbreak bushing including a housing with a bore extending along the longitudinal axis from a first end of the housing toward a second end of the housing. The bore has a first end positioned at or adjacent the first end of the housing and a second end opposite the first end of the bore. A first electrical contact is positioned within the bore adjacent the second end and is configured to be in electrical communication with an electrical component. The first electrical contact is configured to be physically and electrically coupled to a second electrical contact of a power connection. An arc quenching member is positioned within the bore between the first end of the bore and the first electrical contact. A resistive member is coupled to either the first electrical contact or the arc quenching member.
H01R 13/53 - Bases or cases for heavy duty; Bases or cases with means for preventing corona or arcing
H01H 33/04 - Means for extinguishing or preventing arc between current-carrying parts
H01R 4/48 - Clamped connections; Spring connections using a spring, clip or other resilient member
H01R 24/38 - Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
79.
SPARK GAP ASSEMBLY FOR OVERVOLTAGE PROTECTION AND SURGE ARRESTER
A spark gap assembly that includes a first spark gap segment and a second spark gap segment electrically connected in series with the first spark gap segment. The first spark gap includes a first spark gap and a first grading circuit electrically connected in parallel with the first spark gap. The second spark gap segment includes a second spark gap and a second grading circuit electrically connected in parallel with the second spark gap.
A cord connector may be used for holding one or more cords. The cord connector includes a first body, a second body, and a bushing. The second body is removably coupled to the first body. The bushing is disposed between the first body and the second body. The bushing includes at least two bushing passages extending from a first end of the bushing toward a second end of the bushing. Each bushing passage is sealed with a membrane. The membrane is disposed within the bushing passage between the first end and the second end. The membrane is configured to be pierced to open the bushing passage.
H02G 3/02 - Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles - Details
H02G 3/06 - Joints for connecting lengths of protective tubing to each other or to casings, e.g. to distribution box; Ensuring electrical continuity in the joint
H02G 3/22 - Installations of cables or lines through walls, floors or ceilings, e.g. into buildings
A light fixture includes a housing having an upper wall, a first side wall, and a second side wall at least partially defining an interior and a bottom opening. A mounting tray is positioned in the interior and releasably connected to the housing. A first light emitter is connected to the mounting tray and has a first light output. A second light emitter is connected to the mounting tray and has a second light output. A third light emitter is connected to the mounting tray and has a third light output. A lens is connected to the housing. The light fixture can be optionally connected to a secondary light fixture and used to control light outputs from both fixtures.
A mounting assembly includes a mounting body having a first slot and a second slot, a terminal pad being in the first slot, and a rail being in the second slot. The mounting body being deformed around the terminal pad and the rail so that a mechanical and electrical connection is formed between the terminal pad and the rail.
H01R 4/58 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
H01R 25/14 - Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
H01R 4/64 - Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
H01R 13/415 - Securing in non-demountable manner, e.g. moulding, riveting by permanent deformation of contact member
A luminaire includes a frame, opposing sockets coupled to the frame, a bulb removably coupled to the opposing sockets, and a panel coupled to the frame. Each of the opposing sockets projects distally from, the frame. The bulb that, is removably coupled to the opposing sockets emits ultraviolet radiation. The panel that is coupled to the frame blocks ultraviolet radiation emitted by the bulb.
A portable charging system with network capabilities. The system includes a portable device including a rechargeable battery configured to supply a type of power to at least one external load device, and a portable device transceiver configured to provide communication to an external device. Furthermore, such an embodiment may be used by "temporary" users/occupants of a space, such that guests may use embodiments disclosed herein for accessing a network from the user's/guest's personal device(s).
A hot stick installation accessory is provided. The accessory includes a cap portion and a moving section. The cap portion has a region that removably holds an electrical coupling component. The moving section slides with respect to the cap portion between an open and a closed position and pivots with respect to the cap portion between a first position and a second position. The moving section includes a threaded member that is engageable by a hook of a hot stick so that rotation of the hot stick, and thus of the hook, results in rotation of the threaded member into threaded engagement with the moving section to move the moving section between the open and closed positions.
H01R 11/11 - End pieces or tapping pieces for wires or cables, supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member
H01R 11/12 - End pieces terminating in an eye, hook, or fork
H01R 11/24 - End pieces terminating in a spring clip with gripping jaws, e.g. crocodile clip
H01R 11/26 - End pieces terminating in a screw clamp, screw or nut
The present disclosure provides a support member for a shaft of a helical pile, the support member includes a hollow shaft that can receive a shaft of the helical pile and a plurality of fins secured to the hollow shaft and extends from the hollow shaft. The hollow shaft is independently movable relative to the helical pile shaft.
A post for holding an electrical device includes a body having an interior volume to hold the electrical device and a cover that is slidable on the body between an open position to access the volume and a closed position covering the volume.
E04C 1/39 - Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
An electrical fixture is provided that includes a mounting portion, an emitting portion, a connection, and a passage. The mounting portion has a first chamber and an opening passing from the first chamber to an exterior of the electrical fixture. The emitting portion has a second chamber. The connection secures the mounting and emitting portions to one another for movement with respect to one another. The passage has a first end that begins in the first chamber, an extension passing from the first chamber through the connection without passing through the exterior of the electrical fixture, and a second end that terminates in the second chamber.
A device assembly capable of selectively bonding one or more tracer wires to ground and isolating the one or more tracer wires from ground is provided. The device assembly includes a housing, an electrical switch within the housing and one or more contact assemblies. The one or more tracer wires and ground wire are connected to the one or more contact assemblies. The electrical switch can connect the tracer wires to the ground wire and can isolate the tracer wires from the ground wire.
A grounding device, including a top plate including a central portion and a plurality of curved ends, the central portion of the top plate having a hole extending therethrough, a bottom plate including a central portion and a plurality of curved ends, the central portion of the bottom plate having a hole extending therethrough, a cap including a hole and a curved end adapted to retain a grounding wire, and a fastener extending through the holes of the top plate, the bottom plate, and the cap.
Clamps and methods disclosed herein can help to provide efficient electrical communication between a first conductor and a second conductor. An example clamp includes a main housing portion that includes a first surface, a second surface, a body, and an insert, the insert providing electrical communication between the first surface and the second surface; a clamp member; and a fastener.
H01R 11/11 - End pieces or tapping pieces for wires or cables, supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member
H01R 11/14 - End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
H01R 4/2408 - Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
H01R 4/36 - Conductive members located under tip of screw
H01R 4/32 - Conductive members located in slot or hole in screw
92.
ELECTRICAL WIRING DEVICE ASSEMBLY WITH FACEPLATE MODULE
A faceplate assembly and a wiring device having the faceplate assembly are provided. The faceplate assembly includes a wall plate, a wiring device interface and at least one sensor. The wiring device interface has a set of electrical contacts positioned on a rear surface of the wiring device interface configured to mate with a set of contacts on the wiring device. The at least one sensor and at least a portion of the wiring device interface are embedded in the wall plate.
An emergency lighting system that includes a storage device, an emergency lighting device, an area control device and an external device. The emergency lighting device includes a light, a first controller having a first electronic processor configured to perform a self-diagnostic test, and a first input/output (I/O) device configured to transmit data associated with the self-diagnostic test. The area control device includes a second I/O device configured to receive data associated with the first self-diagnostic test form the first I/O device and transmit the data associated with the self-diagnostic test to the storage device.
F21S 9/02 - Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
H02J 9/02 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
A universal junction box includes an upper body having a first connecting feature. A lower body releasably connects to the upper body having a second connecting feature configured to mate with the first connecting feature. The upper body and lower body forming a housing to receive an electrical connection. A first mounting feature is configured to selectively secure the housing to an associated frame or to an unassociated frame or other support structure.
Portable, hand-held, battery operated, hydraulic tools are provided with a tool frame, a force sensor, and a location detector. A piston actuated by a hydraulic system within the tool frame applies force to the working head to perform a task, such as to apply a crimp to an electrical connector. The tool determines the maximum force applied to the crimp and records that maximum force along with the geographic location of the tool when the crimp was formed. The maximum force provides an indication of the quality of the crimp and the recorded location allows a potentially defective crimp to be located. Images of crimps can be uploaded to a web service and linked to cycle information for retrieval and review at a later date.
G05B 19/4065 - Monitoring tool breakage, life or condition
B25F 5/00 - COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR - Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
A wall outlet inductive charger includes a base having a receptacle portion and an inductive charging portion. A faceplate is connected to the base. A device support extends from the faceplate. A charger assembly is connected to the base and positioned between the base and the faceplate. The charger assembly includes an inductive coil.
H02J 50/10 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
H02J 50/40 - Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
H02J 50/90 - Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
A luminaire includes a housing configured to he positioned over an area, the housing including a frame having a first channel for receiving a light emitter. A light emitter is positioned in the first channel. The light emitter is configured to emit ultra-violet light. A reflector assembly is connected to the frame to direct ultra-violet light emitted from the light emitter. At least a portion of the area is located at o degrees relative to the light emitter and a majority of the emitted ultra-violet light is emitted from the housing between 90 degrees and 130 degrees relative to the light emitter in a first direction.
A61K 41/17 - Inactivation or decontamination of a medicinal preparation prior to administration to an animal or a person by ultraviolet [UV] or infrared [IR] light, X-rays or gamma rays
A protective device for electrical conduits including a body having a lower opening for engaging with a first conduit and a central cavity for receiving conductors extending from the first conduit to a second conduit, a top member having an upper opening for engaging with the second conduit, and a coupler slidably engaged around the body, the coupler slidable between an open position distal to the top member and a closed position attached to the top member.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
F16L 25/01 - Construction or details of pipe joints not provided for in, or of interest apart from, groups specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof
E21B 17/20 - Flexible or articulated drilling pipes
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
An integrated insulator sealing and shielding assembly includes a rubber housing having a plurality of radial weathersheds and a tapered end adjacent an endmost radial weathershed. The tapered end has an outer surface with a ring extending outward from the outer surface. The ring is compressible. A metal end fitting is disposed adjacent to the endmost radial weathershed and receives the tapered end. The tapered end is received in a counterbore in the metal end fitting. The counterbore has a sealing surface so that interference of the ring with the sealing surface creates a compressive sealing force to form a seal.
An internet protocol (IP)-based ceiling or wall-mounted speaker with optional IP-based camera and/or alarm indicator is provided. The IP-based speaker has a detachable add-on device for accommodating different types of interchangeable camera configurations and other components such as flush mount camera, camera providing angled view, night vision-type camera for different services and configurations. Multiple IP-based speakers are connected to an IP device to exchange audio data via an Ethernet connection for cost effective, flexible and convenient installations. The IP-based speaker has a speaker cone for talkback features, and relay for remote relay control of doors or gates for security applications as well as public address applications.
G08B 7/06 - Signalling systems according to more than one of groups ; Personal calling systems according to more than one of groups using electric transmission
patents
