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
Vehicle member and process for producing the same
Display screen with animated graphical user interface
Sensor material and uses thereof to simultaneously sense two analytes: oxygen and pH or acidic/basic gaseous ions
Image processing apparatus and control method thereof
Photosensitive drum unit, assembling method therefor, and disassembling method therefor
Data retention of ferroelectric films by controlling film composition and strain gradient for probe-based devices
Continuous single vessel butanol synthesis by fermentation
  Randomly Featured Patents
Methods to improve adhesion of polymer coatings over stents
Axle driving apparatus
Arrangement for connecting printed circuit boards
Access floor panel with edge trim
Table for playing marble game
Flat-spread force measuring device
Reagents and methods for the detection and qualification of thyroxine in fluid samples
Catalytically active recombinant memapsin and methods of use thereof
Methods and apparatus for manufacturing turbine engine components
System for selectively extracting pixels from an image and for forming an abstract image by displaying the extracted pixels