[특허]Fatigue-resistant threaded connector

[미국특허] Fatigue-resistant threaded connector 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16L-015/00
출원번호	US-0207687 (1988-06-16)
발명자 / 주소	Gunderson Richard H. (Houston TX) Burns Jerome Q. (San Diego CA) Fox Stewart A. (Houston TX)
출원인 / 주소	Exxon Production Research Company (Houston TX 02)
인용정보	피인용 횟수 : 123 인용 특허 : 7

초록 ▼

A fatigue-resistant threaded connector for connecting adjacent sections of a tubing string subject to cyclic dynamic stress variations is disclosed. The connector comprises a pin member which is threadedly engageable with a corresponding box member. In its preferred embodiment, the connector is radially preloaded. The connector has tapered threads with a straight load path having substantially no eccentricity. The preferred thread form is a modified buttress thread having a zero (or near zero) degree load flank, a 45 degree stab flank, and a large root radius. Additionally, the thread may include a small stab flank relief to reduce stress concentrations, and a differential between the pitch of the pin threads and the pitch of the box threads to compensate for the Poisson\s ratio effect of the radial preload. The connector utilizes an elliptical stress relief groove at the base of the pin threads and elliptical contours on all thickness transitions to reduce peak stresses. The fully assembled and preloaded connector has a maximum stress-concentration-factor of less than 1.5 and its weight is less than 2.5 times the weight of an equivalent length of tubing.

대표청구항 ▼

A threaded connector for use in connecting adjacent sections of tubing in a tubing string, said tubing having an inside diameter, an outside diameter, and a wall thickness, said tubing string having a longitudinal axis, said threaded connector comprising: (a) a generally tubular pin member having first and second ends, said first end of said pin member adapted to be welded to a first section of said tubing, at least a portion of said pin member having a generally frustoconical outer surface which tapers radially inwardly toward said second end of said pin member, said frustoconical outer surface having a thread formed thereon; (b) a generally tubular box member having first and second ends, said first end of said box member adapted to be welded to a second section of said tubing, at least a portion of said box member having a generally frustoconical inner surface which tapers radially outwardly toward said second end of said box member, said frustoconical inner surface having a thread formed thereon which corresponds to and is threadedly engagable with said thread formed on said pin member; (c) said thread formed on said pin member and said thread formed on said box member being modified buttress threads having a load flank substantially perpendicular to said longitudinal axis of said tubing string; (d) said threaded connector adapted to be radially preloaded upon assembly and having a tapered thread engagement oriented so that the midpoint of said tapered thread engagement is located at approximately the same radial distance from said longitudinal axis of said tubing string as the midpoint of said wall thickness of said tubing, whereby there is a substantially straight load path with substantially no eccentricity through said threaded connector.

이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

Roche Joseph R. (Humble TX) Lin Shaw-Wen (Houston TX), Fatigue resistant coupling for tubular members.
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Bell ; Jr. James L. (Oak View CA) Thatcher Mark T. (Ojai CA) Phillips Brian K. (Aberdeen GB6) Brammer Norman (Aberdeen CA GB6) Sweeney Thomas F. (Ventura CA), Pipe connector.
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Raulins George M. (Dallas TX) Grimmer George G. (Dallas TX), Pipe joint.
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Slator ; Damon T. ; Peil ; Archie W. ; Bishop ; Thomas R., Stress relieved tool elements.
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Falkner, Jr., Chester B., Tension leg means and method of installing same for a marine platform.
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Patterson Billy R. (Diana TX) Schneider Warren P. (Dallas TX), Tubular connection.
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Landriault, L. Steven, Tubular connection with cylindrical and tapered stepped threads.
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이 특허를 인용한 특허 (123) 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

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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] Fatigue-resistant threaded connector 원문보기

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[미국특허] Fatigue-resistant threaded connector 원문보기

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대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

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