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
Apparatus and method for providing vehicle data for testing product
Health monitoring of applications in a guest partition
Method of patterning color conversion layer and method of manufacturing organic EL display using the patterning method
Shoe
Image processing apparatus, image printing apparatus and printing data generation method
Creating three dimensional graphics data
Flat panel display device and stereoscopic display device
  Randomly Featured Patents
Splay bottom fluted metal piles
Cylindrical receptacle of fiber-reinforced plastic and method of manufacturing a receptacle
Providing a useable version of a data item
Interposer device and striker strip assembly therefor
Window fog detector
No touch pour torch top
Chip-mounted contact springs
Low capacitance electronically controlled active bus terminator circuit and method
Drag harness with multiple gripping locations
Microwave generator