Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Valve actuator system










Image Number 3 for United States Patent #6651686.

An actuator system for a system valve exposable to a source of system pressure. A piston within a sensing vessel is caused to move longitudinally from a first position to a second position in response to a designated system pressure. A first piston stem carried by the piston is mechanically coupled to an actuator control valve, which is interposed in a fluid path between an actuator and a source of actuator pressure. Movement of the piston from its first to second position causes the coupled actuator control valve to block the fluid path linking the actuator and its pressure source, thereby causing a predetermined change in pressure at the actuator. As a result, the actuator shifts from its unactuated to its actuated state, thereby causing the system valve to shift from a first system valve position to a second system valve position.








 
 
  Recently Added Patents
Translation of entity names based on source document publication date, and frequency and co-occurrence of the entity names
Plug housing
Optical fiber probe
Calibrachoa plant named `Balcabrite`
Mobile telecommunication system with adaptive handoff mechanism and method of operation thereof
Method, apparatus and system for transmitting multimedia broadcast multicast service notification message
Sofa
  Randomly Featured Patents
Method of forming groove isolation in a semiconductor device
In vitro germinal centers
Mixing faucet
Gun system and accessory thereof
Sectionized trash receptacles
Alignment mechanism for jointers
Air intake conduit fuel metering device
Network system device
Gas concentration sensor
Model engine air filter