Generally, this disclosure enables various drivers, reversible sockets, and methods of use and manufacture thereof. For example, some of these drivers can avoid laterally rolling off an inclined surface (e.g., between about 15 degrees and about 25 degrees). For example, some of these drivers can avoid using excessive material. For example, some of these drivers can allow for stacking of drivers and thereby be efficient to package for shipping. For example, some of these sockets can provide a tactile feedback for a user to know which ends of those sockets are currently being handled.
This disclosure enables various bits to widen (e.g., flare, swage) various open end portions (e.g., with a circular cross-section) of various tubes (e.g., a metal tube, an alloy tube, a copper tube, an aluminum tube) by engaging thereagainst.
A drain gun includes a handle and a trigger. The handle includes a channel and a plurality of inlets. The inlets feed the channel. The trigger causes a staged release of a plurality of fluids from a plurality of cartridges to the channel via the inlets when the cartridges are stored in the handle and feeding the inlets.
A three-dimensional filter includes a filter frame having a three-dimensional skeletal structure with a filter media connected to the skeletal structure. The filters are nestable. The skeletal structure may be trimmed and provided with walls to create standard sized filters. Methods for making the three-dimensional filter include injection molding of the skeletal structure onto the filter media, injection molding the filter media and the filter frame together in a single molding process, thermoforming a molded or extruded skeletal structure and the filter media, and needle punching a molded or extruded skeletal structure to create filter media within the skeletal structure.
A service gauge for determining refrigerant pressure and the saturated vapor equivalent temperature, or other parameters, for a refrigerant in an HVAC system. In one embodiment, the service gauge employs a bourdon tube with at least one attached strain gauge to sense the refrigerant pressure and produce an electronic pressure signal. In another embodiment, a magnet and rotary position sensor produces an electronic signal proportional to the refrigerant pressure. The electronic pressure signal from the output of the strain gauge or the rotary position sensor is connected to a microprocessor, which calculates and displays the refrigerant pressure, the saturated vapor equivalent temperature for a variety of refrigerants, produces instantaneous and time lapsed representations of those parameters, and other parameters of the refrigerant.
G01L 7/04 - Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
A condensate pump for an HVAC system includes a reservoir for collecting condensate water, a pump motor connected to an impeller pump and a floatless pump control module. The floatless pump's microcontroller detects the water level in the reservoir and, based on the water level in the reservoir, controls the operation of the pump motor, and if necessary, sounds an alarm and shuts down the HVAC system. The floatless pump microcontroller may employ an ultrasonic transducer or capacitance sensors to detect the level of condensate water in the reservoir. The microcontroller implements a variable water lift feature. The microcontroller implements a self-cleaning feature to pump stagnant water out of the reservoir and to pulse water in the drain line and the agitation of the water in the reservoir and implements an anti-clog feature to clear a clogged drain line when an overflow condition is detected.
A condensate pump for an HVAC system includes a reservoir, a solenoid pump assembly with a solenoid pump, and a solenoid pump electronic control module for limiting the amount of energy delivered to the solenoid pump during one half cycle from an AC current source. The solenoid pump is mounted in the solenoid pump assembly by means of shock absorbing material, and the solenoid pump assembly is mounted on a support member with shock absorbing material interposed between the solenoid pump assembly and the support member.
A multi-value capacitor with a safety disconnect mechanism has a capacitive element with six capacitive sections, a common wire, and six section wires enclosed in a cylindrical metal can with a metal lid that normally has a concave configuration. The wires are soldered to contacts extending through the concave metal lid. The safety disconnect mechanism includes an external insulator disk with terminals. The terminals in the insulator disk align with the contacts in the metal lid. The center common terminal of the insulator disk is fixedly riveted to the center common contact of the metal lid. Spring elements form the electrical connection between the section terminals of the insulator disk and the section contacts in the metal lid. If an overload condition occurs, pressure inside the sealed metal can causes the metal lid to spring from its concave configuration to a convex configuration, which causes the whole insulator disk to pop up and thereby simultaneously break the connection between all of the section contacts in the metal lid and the section terminals of the insulator disk.
H01G 2/00 - CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE - Details of capacitors not covered by a single one of groups
A condensate pump for an HVAC system includes a reservoir with a top assembly, which includes control electronics, a pump motor, and a pump impeller, mounted on top of the reservoir. The condensate pump includes wall hangers. The top assembly has a top cover with four inlet openings, and the top cover is reversible to accommodate placement of the electric service and the evaporator tube. The top cover has tube holders that extend into the reservoir so that the evaporator tube does not bottom out in the reservoir. The reservoir is made of clear plastic so that the water level can be readily observed. The condensate pump has control circuitry that can shut off the HVAC system or sound an alarm when the pump fails. The condensate pump has a drawer for biostat tablets. The drawer passes through the top assembly and extends into reservoir.