Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Pilot operated valves










Image Number 5 for United States Patent #4850345.

There is disclosed a pilot operated valve which includes a valve body, a main valve having a main valve member controlling fluid communication between an inlet port and an outlet port, a pilot valve including a vent passage sensing downstream pressure to open and close the main valve member as the sensed pressure is above or below a predetermined pressure, and selectively operable override means to suspend pilot operation of the valve. The override means may be means to occlude the vent passage and thus close the main valve, means to open the vent passage to atmosphere and thus open the main valve, or means to bypass the main valve.








 
 
  Recently Added Patents
Method of creating exercise routes for a user and related personal navigation device
Sacrificial spacer approach for differential source/drain implantation spacers in transistors comprising a high-k metal gate electrode structure
Telephone relaying apparatus, telephone relaying method, and program
Semiconductor device and fabrication method
5-HT.sub.3 receptor modulators, methods of making, and use thereof
Substituted bicyclic HCV inhibitors
Buildable dinnerware
  Randomly Featured Patents
Nucleic acid extraction method
Semiconductor package having interlocking heat sinks and method of fabrication
Process for production of polyasparagine and the high nitrogen content polymer formed thereby
Snaplock thermoformed container
Circuits and methods for detecting the presence of a powered device in a powered network
Card connector having improved support member for eject mechanism
Gas separation process
Chisel holder
Shadow mask for cathode ray tube having predetermined radius of curvature
Security system with lock interface member with multiple apertures