[특허]Valve assembly and disassembly device

[미국특허] Valve assembly and disassembly device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-043/00 F16K-025/00
출원번호	US-0420382 (1982-09-20)
발명자 / 주소	Johnson David A. (Shrewsbury MA) Wright Joseph B. (Northboro MA) Pashoogian Michael (Worcester MA)
출원인 / 주소	Jamesbury Corporation (Worcester MA 02)
인용정보	피인용 횟수 : 18 인용 특허 : 4

초록 ▼

A device for enabling the assembly and disassembly of a top entry ball valve takes the form of a pin formed from rod-like material with a conical end. When the pins are inserted into the top surface of the valve housing the spring loaded valve seats are forced backwardly by the advance of the sloped face of the pins. In a second embodiment, the ends of the pins are teardrop shaped. After the pins are inserted, they are rotated 90°causing the seat to be pushed back by the larger diameter of the pin.

대표청구항 ▼

A valve having a retractable valve seat, including a valve body having an inlet port, an outlet port and an upper opening in a first surface intermediate said inlet and output ports, a cover for closing the upper opening, a valve member for controlling the flow of fluid between the inlet port and outlet port, said valve seat being in contact with the valve member and a central chamber between said inlet port and said outlet port for receiving said valve member, said valve further comprising: means for retracting said valve seat, said means for retraction being formed of an elongated main section, a forward section and a rear section, said forward section including a camming surface for contacting said valve seat and having a variable diameter as well as a constant diameter portion, said rear section being formed for receiving a force for moving the means for retraction; and said first surface having holes formed therein for receiving said means for retraction, said holes being formed in a portion of said first surface which is not sealingly covered by said cover, whereby said means for retraction may be inserted in said holes without removing said cover; wherein said movement of the means for retraction causes the point of said contact of said camming surface to change to a point having said constant diameter, forcing said seat to retract and remain retracted in a locked position by said constant diameter.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Domyan Frank F. (Canoga Park CA), Ball valve.
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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), Means and method for in-line removal of seat rings in ball valves.
상세보기
Kacal Gary W. (Rosenberg TX) Partridge Charles C. (Houston TX), Spring assembly for floating seat ring.
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이 특허를 인용한 특허 (18) 인용/피인용 타임라인 분석

Nabors, Blake; Prince, Donald; Majka, Anthony, Adjustable trunnion valve and related methods.
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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.
상세보기
Thomas, Kurt R., Ball valve with anti-rotational pressure plate.
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Thomas, Kurt R., Ball valve with anti-rotational pressure plate.
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Thomas, Kurt R., Ball valve with anti-rotational pressure plate.
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O'Callaghan,Jeremiah J., Ball valve with cartridge.
상세보기
Ikematsu Morio (Takaishi JPX) Hiranuma Hiromichi (Sakai JPX), Clamp for use with top entry ball valve.
상세보기
Thomas, Kurt R., Dynamic ball valve sealing device for three-way valves.
상세보기
Nguyen, Vinh Van; Allen, Stanley C., In-line repairable metal seated floating ball valve.
상세보기
Timko, Jared S.; Lippucci, Thomas A.; Kvarda, Eric M.; Fry, Brandon J.; Gotch, James E., Method of assembling a ball valve.
상세보기
Mullins, Douglas O., Systems and methods for servicing ball valves.
상세보기
Ikematsu Morio (Takaishi JPX) Wada Tohru (Sakai JPX) Nakanishi Tohru (Osaka JPX) Ishigami Nobuo (Sakai JPX), Top entry ball valve and a clamp therefor.
상세보기
Jackson, Trenton Frank, Top entry ball valve, installation assembly, and method therefor.
상세보기
Stunkard Gerald A. (P.O. Box 748 Gladewater TX 75647), Top entry trunnion ball valve.
상세보기
Shah, Amit; Kothadia, Ajit, Top entry trunnion ball valve for safe in-line maintenance and method to facilitate such maintenance.
상세보기
Mike, Jeff, Top-entry ball valve assembly having camming surfaces.
상세보기
Boelte Leon W. (Norman OK), Valve seat retraction method and apparatus.
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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] Valve assembly and disassembly device 원문보기