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
Display window with level of service graphical user interface
Systems and methods for excluding undesirable network transactions
Circuitry for measuring and compensating phase and amplitude differences in NDT/NDI operation
Hand sign
Viruses lacking epithelial cell receptor entry
Artifact removal in nuclear images
Proton conducting electrolytes with cross-linked copolymer additives for use in fuel cells
  Randomly Featured Patents
New Guinea Impatiens plant named `Arabella`
Workpiece carrier for a disk-shaped workpiece as well as a vacuum process space
Portable phone
System for processing programmable buttons using system interrupts
Method and device for manufacture of amorphous metal tapes
Detergent pellet composition and process therefor
Capacitative node measurement in a capacitative matrix pressure inducer
Analysis of the effect of program execution of calling components with data variable checkpointing and resource allocation analysis
Shoulder brace
Electroactive fluorene copolymers and devices made with such polymers