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
Shoe upper
Method and system for automatic 3-D image creation
Polyolefin and composition for pipe systems and sheets
Method and system for triggering message waiting indicator delivery
Label with surface ornamentation
Bio-stimulant for improved plant growth and development
Biological analysis arrangement and approach therefor
  Randomly Featured Patents
Heat exchanger
DNA and amino acid sequences of a tyrosine-inducible tyrosine ammonia lyase enzyme from the yeast Trichosporon cutaneum
Endoscopic barrel with connector
Educational and amusement center
Sealed impeller for producing metal foam and system and method therefor
Apparatus for applying a coating to the internal wall of a conduit
Actuating device for the vizors of helmets or similar headgears
Combine
Cooling system
Process for the production of composite structures