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특허 상세정보

Ball-type check valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-015/00   
미국특허분류(USC) 137/5195 ; 137/53311
출원번호 US-0357121 (1989-05-26)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 2
초록

This invention involves an improved ball-type check valve for use in conditions such as oil and gas drilling which involve abrasive fluids, high pressures, and high temperatures. In this improved check valve, a one-piece ball retainer is provided which consists of (1) a retainer ring for the ball, (2) a base, and (3) at least two vertical supports which connect the retainer ring and the base. Peripheral channels are formed by (a) orifices which pass between the vertical supports, adjoined to (b) recessed areas in the base. This allows the interior passag...

대표
청구항

In a ball-type check valve, a ball retainer consisting essentially of: (a) a base at one end, designed to securely mount said ball retainer inside a cylindrical conduit, wherein a channel is adapted to allow fluid to pass through the base, wherein said channel includes a central channel region and at least two peripheral channel regions formed by recessed areas in said base; (b) a retainer ring which forms a continuous circle at a second opposed end, wherein said retainer ring forms and encloses a central orifice through which fluid can pass if a ball is...

이 특허를 인용한 특허 피인용횟수: 15

  1. Appleton Robert Patrick,GBX. Actuating ball. USP1999085941309.
  2. Orgill, Michael Allen; Roes, Christopher Richard; Kiphart, Roger Steven; White, Grant Alexander. Breather cap assembly. USP2014128904962.
  3. Orgill, Michael Allen; Roes, Christopher Richard; Kiphart, Roger Steven; White, Grant Alexander. Breather cap for use in connection with a watering assembly. USP201407D708402.
  4. Black Art ; Riggs Tom. Check valve for the pre-combustion chamber of an internal combustion engine. USP1998085791374.
  5. Oxford, James Andy. Corrodible triggering elements for use with subterranean borehole tools having expandable members and related methods. USP2014098844635.
  6. Oxford, James Andy. Corrodible triggering elements for use with subterranean borehole tools having expandable members and related methods. USP2017069677355.
  7. Budde Peter (Vlaardingen NLX). Fill valve. USP1997115690177.
  8. Hayes, Michael S.. Filter assembly. USP2016129528618.
  9. Schafer, Christopher E.; Ramsey, Rodney M.. Fluid retaining apparatus with ball valve. USP2012038127789.
  10. Whitley ; II Warwick M.. Fuel overflow restrictor/water intake restraining devices. USP1998065762093.
  11. Voigt, William R.. Prompt hot water and water conservation system and method. USP2016029255644.
  12. Budde Peter,NLX. Valve for wellbore use. USP1998115836395.
  13. Hung,Victor. Ventilation valve of hydraulic jack. USP2007037194857.
  14. Schoonderbeek,Gerhard; Alteirac,Laurent; Walker,Jeremy P.; Wetzel,Rodney J.. Well fluid control. USP2007077240739.
  15. Giroux Richard L. ; Budde Peter,NLX. Wellbore valve. USP1999065909771.