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
Method for treating rheumatoid arthritis by administering an anti-IL-6 antibody and methotrexate
Method for producing organo-oligo silsesquioxanes
Shape memory polymers formed by self-crosslinking of copolymers
Methods of establishing virtual circuits and of providing a virtual private network service through a shared network, and provider edge device for such network
Variety corn line NPAA2675
Mobile device case with storage compartment
Optical article including an antireflecting coating having antifog properties and process for making same
  Randomly Featured Patents
Air compressor
Histone deacetylases, and uses related thereto
Dual seal assembly
Hanging drawer set
User-driven menu generation system with multiple submenus
Device for dynamic storage of objects
Pixel interpolation method and circuit therefor
Acrylic triblock copolymers, their preparation and their application to the manufacture of elastomeric articles
Apparatus for automatically starting add-on progression to run with inputted music, and computer program therefor
Manufacturing method of ceramic device using mixture with photosensitive resin