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특허 상세정보

Pilot valve mechanism for high or low pressure cut-off control

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-011/02    F16K-031/122   
미국특허분류(USC) 137/62566 ; 137/62569
출원번호 US-0008197 (1979-01-23)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 14  인용 특허 : 0
초록

An improved pilot valve mechanism for controlling the flow of a pressure medium responsive to predetermined variations in a pressurized system. The pilot valve mechanism is constructed in such manner that a plurality of pilot valves may be connected in an assembly and may be operative to shut down operation of a flow system responsive to sensing of pressures that are above or below a predetermined range of operating pressure. Each of the valves may include a shuttle valve mechanism capable of interrupting fluid communication between the inlet and outlet ...

대표
청구항

A quick bleeding pressure responsive pilot valve mechanism for rapidly bleeding a pilot controlled control pressure system responsive to sensing of an unsafe condition in a pressurized primary system, said pilot valve mechanism comprising: an elongated hollow intermediate body portion having a longitudinal extending central opening and internally threaded ends, said intermediate body portion having an inlet port, an outlet port and a vent port in communication with the longitudinal opening; a pair of externally threaded end sections in threaded engagemen...

이 특허를 인용한 특허 피인용횟수: 14

  1. Roger Harry (124 Banks Ave. Lafayette LA 70506). Dual piston sensing mechanism. USP1983124420011.
  2. Beschorner, Matthew J.; Egelja, Aleksandar M.; Hughes, Eric; Sorokine, Mikhail. Dynamic seal wear mitigation system. USP2016079394928.
  3. Tibbitts, Matthew H; Gledhill, Andrew D; Innes, David S. Electrically operated hydraulic valve. USP2012078210208.
  4. Marchant George W. (Crawley GB2). Flow control valve. USP1985034506697.
  5. Rayssiguier, Christophe M.; Vongphakdy, Vong. Hydraulic actuator. USP2003016505684.
  6. Rayssiguier, Christophe M.; Vongphakdy, Vong. Hydraulic actuator. USP2003016502640.
  7. Beschorner, Matthew J.; Hughes, Eric C.; Sorokine, Mikhail A.; Aardema, James A.; Hajek, Thomas J.; Egelja, Aleksandra M.. Hydraulic system with a dynamic seal. USP2017059651067.
  8. Tibbitts, Matthew H; Gledhill, Andrew D; Innes, David S. Hydraulic valves with integral seals. USP2014088813786.
  9. Rayssiguier, Christophe M.; Vongphakdy, Vong. Hydraulically actuated valve. USP2003026523613.
  10. Rimboym Vladimir. Pneumatically controlled no-bleed valve and variable pressure regulator. USP1998065762102.
  11. Martin Berthold ; Botosan Valentin ; Streetman Charles K.. Shuttle valve for a multipath hydraulic circuit with bypass pressure venting. USP2001036196252.
  12. MacDougall,Thomas D.. Snorkel device for flow control. USP2008117455114.
  13. James O. Sims. Super sensitive, full flow, adjustable pressure valve. USP2002126488049.
  14. Davis Bill G. (Phoenix AZ). Valve. USP1986104616806.