[특허]Top entry trunnion ball valve

[미국특허] Top entry trunnion ball valve 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-043/00
출원번호	US-0749436 (1985-06-27)
발명자 / 주소	Stunkard Gerald A. (P.O. Box 748 Gladewater TX 75647)
인용정보	피인용 횟수 : 39 인용 특허 : 7

초록 ▼

A Top Entry Trunnion Ball Valve is provided having a valve body forming seat recesses with seat members movable disposed therein and urged towards sealing engagement with a spherical valve member by spring members and by differential pressure induced force. A seat retractor mechanism is movably disposed within the valve body and is movable by an externally controlled tool into retracting engagement with the seat members. The seat members and the seat retractor element have cooperative cam surfaces that cause camming movement of the seat members away from the valve member upon linear movement of the seat retractor. A fire safe seal and spring chamber is in communication with a relief passage having volumetric closure plugs permitting introduction of solvent or other softening agent into the spring chambers for removal of any accumulation of foreign material therein.

대표청구항 ▼

A top entry ball valve, comprising: (a) body means defining a valve chamber and flow passage means intersecting said valve chamber, said body means forming an access passage to said valve chamber oriented substantially transverse to said flow passage means; (b) bonnet means being removably connected to said body means and forming a sealed closure for said access passage means; (c) a generally spherical valve member being rotatably supported within said valve chamber and defining a spherical sealing surface and a flow port and being rotatable substantially 90°between the open and closed positions thereof; (d) a pair of seat members being movably disposed in sealed relation within said body means and having sealing portions thereof in sealing engagement with said spherical surface of said valve member; (e) means urging said seat members into sealing engagement with said valve member; and (f) a bearing assembly disposed within said valve body and surrounding at least a portion of said valve member, said bearing assembly comprising seat retractor means disposed within said valve body and being controllably movable into engagement with said seat members, movement of said seat retractor means inducing retraction of said seat members away from said valve member sufficiently that said valve member is clear for insertion into and extraction from said valve chamber through said access passage.

이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

Levin Alan R. (Houston TX) Moran George A. (Houston TX), Ball valve assembly tools and method of using same.
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Kacal Gary W. (East Bernard TX), Cam means for ball valve seat rings.
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Kacal Gary W. (Rosenberg TX) Partridge Charles C. (Houston TX), High temperature ball valve.
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Kacal Gary W. (Rosenberg TX) Partridge Charles C. (Houston TX), Means and method for in-line removal of seat rings in ball valves.
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Walter John F. (Warwick RI), Slurry valve.
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Johnson David A. (Shrewsbury MA) Wright Joseph B. (Northboro MA) Pashoogian Michael (Worcester MA), Valve assembly and disassembly device.
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Johnson David A. (Shrewsbury MA) Wright Joseph B. (Northboro MA) Pashoogian Michael (Worcester MA), Valve assembly and disassembly device.
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이 특허를 인용한 특허 (39) 인용/피인용 타임라인 분석

Nabors, Blake; Prince, Donald; Majka, Anthony, Adjustable trunnion valve and related methods.
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Ibrahim,Daniel R.; Claus,Jeremy T., Avoidance of spark damage on valve members.
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Shafer, Scott F.; Claus, Jeremy T.; Ibrahim, Daniel R., Avoidance of spark damage on valve members.
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Shafer, Scott F.; Claus, Jeremy T.; Ibrahim, Daniel R., Avoidance of spark damage on valve members.
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Trent, Thomas C.; Wickman, Michael E., Ball control valve.
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Trent, Thomas C.; Wickman, Michael E., Ball control valve.
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Wang,Xizhong, Ball valve.
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Timko, Jared S.; Lippucci, Thomas A.; Kvarda, Eric M.; Fry, Brandon J.; Gotch, James E., Ball valve packing.
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Wilkins Larry C., Ball valve seal replacement apparatus and method.
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O'Callaghan,Jeremiah J., Ball valve with cartridge.
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Stone Ralph S. (Missouri City TX) Shelton William S. (Houston TX), Ball valve with seat loading mechanism.
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Stunkard, Gerald A., Compact manifold trunnion ball valve.
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Corte, Jr., Bobby; Callahan, Troy, Double piece retainer for compact value.
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Ricard, Philippe Ode Daniel; Avdjian, Christophe, Double piston effect lip seal seating assemblies.
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Ezekiel, Mark, Double piston trunnion mounted ball valves and methods of use.
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Thomas, Kurt R., Dynamic ball valve sealing device for three-way valves.
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Merrill, Peter K.; Anderson, Joel R., Electrical grounding assembly for control valve.
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Whitlow, Mark, Energized spring seal for a floating valve seat.
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Koester, David John; Dvorak, Sarah Lynn; Mahncke, Lynn Dean; Bell, Brandon Wayne; Bovee, Loree Lee; Witt, Gary Alan, Fluid flow control valve with bi-directional shutoff.
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Koester,David John; Dvorak,Sarah Lynn; Mahncke,Lynn Dean; Bell,Brandon Wayne; Brestel,Ronald R., Fluid flow control valve with high temperature bi-directional shutoff.
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Sundararajan, Alagarsamy, Gate valve.
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Gomi, Takeshi; Guenther, Ronald; Watanabe, Osamu, High-pressure trunnion ball valve and hydrogen station using the same.
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Nguyen, Vinh Van; Allen, Stanley C., In-line repairable metal seated floating ball valve.
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Greene, Darrell F., Low-drag sealing method for thermal management valve.
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Timko, Jared S.; Lippucci, Thomas A.; Kvarda, Eric M.; Fry, Brandon J.; Gotch, James E., Method of assembling a ball valve.
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Frenzel, Robert Anthony, Multi-component metal seat design for ball valves.
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Keiser, David B, Replaceable valve shaft sealing system.
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Håland, Terje, Seal arrangement for valve.
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Mircea, Balan, Self-relieving ball valve seat.
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Mullins, Douglas O., Systems and methods for servicing ball valves.
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McMahon Timothy A. ; Kuhlman Charles R. ; Weber Larry J., Throttling control in a fluid control valve.
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Jackson, Trenton Frank, Top entry ball valve, installation assembly, and method therefor.
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Shah, Amit; Kothadia, Ajit, Top entry trunnion ball valve for safe in-line maintenance and method to facilitate such maintenance.
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Mike, Jeff, Top-entry ball valve assembly having camming surfaces.
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Balan, Mircea; Burrows, Steven, Trunnion ball valve seat with V-section spring.
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Balan, Mircea; Burrows, Steven, Trunnion ball valve with interchangeable and replaceable seat insert.
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Lo Cicero, Calogero, Valve flange with bleed port.
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Scaramucci, John P.; Filler, William D., Valve gear operator.
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Gardner, Murray, Valve having an inner washing structure.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Top entry trunnion ball valve 원문보기