[특허]Alignable, threaded, sealed connection

[미국특허] Alignable, threaded, sealed connection 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16L-035/00
출원번호	US-0156206 (1988-02-16)
발명자 / 주소	Chang Michael C. (Houston TX)
출원인 / 주소	Western Atlas International, Inc. (Houston TX 02)
인용정보	피인용 횟수 : 116 인용 특허 : 0

초록 ▼

The present invention is directed to an apparatus and method for assembling, aligning and securing a sealed connection. The apparatus and method of the present invention advantageously employ the mechanical leverage of a threaded connection, preferably square threads, to overcome the high O-ring seal friction associated with large diameter, high pressure O-ring seals. The disadvantages of threads are eliminated by the use of thread relief grooves adjacent and interior to the threads. The thread relief grooves must be of sufficient length and annular dimensions to accommodate the disengaged upset threads therein to permit free rotation. The combined length of threaded engagement must be sufficient to move the O-ring seal into sealing engagement to fully achieve the advantageous ease of assembly of the present invention. Further, this connection is unlikely to separate during use in that disengagement of the threads into the thread relief grooves prevents back off where high make up torque is not employed. After makeup of the O-ring seal, continued rotation results in disengagement of the threads into the thread relief grooves where alignment in any desired orientation is easily achieved by continued rotation. Once aligned in the desired orientation the connectors are secured by screws.

대표청구항 ▼

An alignable, threaded, sealed connection for connecting a pair of tubular members in a high-pressure borehole environment, comprising: a female connector section disposed adjacent one end of the tubular members and having an increased diameter upset bore disposed therein communicating with the end of the tubular member and with a smaller interior bore of the tubular member across an upset shoulder disposed therein, said female connector section further including first upset threads spaced axially from said upset shoulder and disposed axially along said upset bore a first interval, and a first thread relief groove spaced interiorly thereof between said first upset thread and said upset shoulder; a male connector section disposed adjacent one end of the other of the tubular members and including a reduced diameter upset cylindrical plug with a first cylindrical portion adjacent said plug end having a first reduced diameter for mating with the interior bore of said one tubular member carrying said female connector section and a second cylindrical portion intermediate said first cylindrical portion and said other tubular member body having a second reduced diameter for mating with the interior of said upset bore disposed in said female connector section, said male connector section further including second upset threads disposed on said second cylindrical portion and axially spaced from said plug end and axially disposed thereon a second interval for engaging said first upset threads of said female connector section, and a second thread relief groove spaced interiorly thereof between said second upset threads and the tubular member body; said first thread relief groove extending axially for at least said second interval and having a diameter sufficiently large to accommodate said second upset threads; said second thread relief groove extending axially for at least said first interval and having a diameter sufficiently small to accommodate said first upset threads; a first sealing surface comprising the bore through said female connector section and the one tubular member; a second sealing surface comprising the surface of said cylindrical plug end; elastomeric seal means disposed between said first and second sealing surfaces for effecting a high pressure seal therebetween; said first and second upset threads mating upon insertion of said plug section of said male connector section into said upset bore portion of said female connector section and rotation of said pair of tubular members with respect to each other whereby upon continued rotation of said tubular members said plug section first cylindrical portion mates with said interior bore of said one tubular member for effecting engagement of said elastomeric seal means therebetween and permitting continued axial rotational movement between said male and female connector sections for permitting said first upset threads to be displaced into said second thread relief groove and said second upset threads to be displaced into said first thread relief groove; and means for securing the tubular members together and preventing relative rotational movement therebetween.

이 특허를 인용한 특허 (116) 인용/피인용 타임라인 분석

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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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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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[미국특허] Alignable, threaded, sealed connection 원문보기

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[미국특허] Alignable, threaded, sealed connection 원문보기

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