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2023
|
Invention
|
Torque-sensing system for valve actuators. An actuator (100) for a valve can include a torque mod... |
|
|
Invention
|
Energy storage and control system for pipeline flow control. A fluid control system (100; 200) fo... |
|
2021
|
Invention
|
Universal logic circuit for electro-hydraulic actuator. Universal control circuitry (500) for an ... |
|
|
Invention
|
Universal logic circuit for electro-hydraulic actuator.
Universal control circuitry for an elect... |
|
2020
|
Invention
|
Electric valve actuator with energy-harvesting position detector assemblies. An absolute valve po... |
|
|
Invention
|
Manual hydraulic override pumps for use with actuators. Manual hydraulic override pumps for use w... |
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2019
|
Invention
|
Electric valve actuator with energy harvesting position detector assemblies.
An absolute valve p... |
|
|
Invention
|
Apparatus to prevent side load in hydraulic override pumps. Apparatus that prevent side load in h... |
|
|
Invention
|
Thermal volume control for an actuator assembly. An actuator assembly includes a cylinder dispose... |
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2018
|
Invention
|
Apparatus to prevent side load in hydraulic override pumps. An example apparatus to prevent side ... |
|
|
Invention
|
Maximum force logging and operational performance prognostics for process control devices. An act... |
|
2017
|
Invention
|
A system and method for self-calibration of an actuator. The present disclosure envisages a syste... |
|
|
Invention
|
System and method for self-calibration of an actuator. The present disclosure envisages a system ... |
|
|
G/S
|
Electric valve actuators; Software and hardware for use in controlling valve actuators. |
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|
G/S
|
Driving motors, other than for land vehicles; Valves [parts of machines]; Control mechanisms for ... |
|
2016
|
Invention
|
Fluid power actuator for a process valve. The control fluid power apparatus (102) includes a firs... |
|
|
Invention
|
Methods and apparatus for automatically detecting the failure configuration of a pneumatic actuat... |
|
2015
|
Invention
|
Rotary actuators with chain operated cams. An example rotary actuator includes a cam that is to b... |
|
|
G/S
|
[ hydraulic valve actuators; ] pneumatic valve actuators |
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|
G/S
|
Control mechanisms for machines, engines or motors; hydraulic controls for machines, engines, and... |
|
|
Invention
|
Control fluid power apparatus and related methods. Control fluid power apparatus and related meth... |
|
2014
|
Invention
|
Methods and apparatus of using customizable templates in initializing process control devices. Me... |
|
|
Invention
|
Absolute position detectors. Example apparatus for absolute position detection are disclosed. An ... |
|
2013
|
Invention
|
Absolute positions detectors. Example apparatus for absolute position detection are disclosed. An... |
|
|
Invention
|
Methods and apparatus for adjusting actuator output torques. Methods and apparatus for changing a... |
|
2012
|
Invention
|
Electric motor torque transfer device and sensor. A force transfer apparatus includes a housing, ... |
|
2010
|
Invention
|
Rotary valve actuators having partial stroke damping apparatus. Rotary valve actuators having par... |
|
|
Invention
|
Methods and apparatus to charge accumulator apparatus. Methods and apparatus to charge accumulato... |
|
2008
|
G/S
|
Pneumatic and hydraulic valve actuators. |
|
|
G/S
|
Pneumatic and hydraulic valve actuators. |
|
|
Invention
|
Automated valve stem lubrication system. An at least partially automatic valve stem lubrication s... |
|
2007
|
Invention
|
Draining system for valve actuator/valve stem protector assemblies. Condensation draining system ... |
|
2006
|
Invention
|
Valve stem protection system. An improved stem protector system for valves including an assembly,... |
|
2004
|
G/S
|
Electric valve actuators; software and hardware for use in controlling valve actuators [ Distribu... |
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2002
|
G/S
|
Pneumatic valve actuators.
Valve automation equipment comprising a valve position detector, an ac... |
|
|
G/S
|
electronic valve actuator controls |
|
|
G/S
|
pneumatic valve actuators valve automation equipment comprising a valve position detector, and ac... |
|
|
Invention
|
Abnormal state absolute position detector generating direct digital output. An absolute position ... |
|
|
Invention
|
Remote replication of local actuator mode selection. A system comprising a local site served by a... |
|
|
G/S
|
Actuators used to operate linear gate valves in the oilfield market. |
|
2001
|
Invention
|
Actuator assembly. An actuator assembly comprising at least one prime mover, a shaft having a fir... |
|
|
Invention
|
Electric actuator for fluid control valves. An electro-mechanical actuator (10) for operating a f... |
|
2000
|
Invention
|
Scalable code absolute logic function (scalf) encoder. An inventive encoding system that expects,... |
|
|
Invention
|
Absolute position detector interpreting abnormal states. An absolute position detector that inter... |
|
|
Invention
|
Electric actuator for fluid control valves. An electro-mechanical actuator for operating a fluid ... |
|
1998
|
G/S
|
PNEUMATIC AND HYDRAULIC VALVE ACTUATORS ELECTRIC VALVE ACTUATORS |
|
1995
|
Invention
|
Load decoupler. Device for absorbing lateral forces generated as a result of a linearly reciproca... |
|
|
Invention
|
Module locking device. A device used in an actuator for locking in place a spring module while un... |
|
1992
|
Invention
|
Locking device. A device for controlling the rotation of a valve and/or valve actuator, such devi... |
|
1977
|
G/S
|
HYDRAULIC VALVE OPERATORS AND HYDRAULIC AND ELECTRICAL CONTROLS THEREFOR [ AUTOMATIC PIPELINE VAL... |
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1971
|
G/S
|
ELECTRICAL CONTROLS FOR VALVE OPERATORS VALVE OPERATORS |
|
|
G/S
|
VALVE ACTUATORS |
