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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Pipe gripping device

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) E21B-001/00   
미국특허분류(USC) 173/055 ; 173/053 ; 173/149
출원번호 US-0178064 (1998-09-21)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Bennett Jones
인용정보 피인용 횟수 : 85  인용 특허 : 11
초록
▼

A pipe gripping device is taught which is useful for moving pipe into and/or out of a well. The pipe gripping device includes a first set of slips for holding a pipe in a pipe light condition and a second set of slips for holding a pipe in a pipe heavy condition. The second set of slips are actuatable independently from the first set of slips. The pipe gripping device can include a slip moving system which prevents the slip carrier blocks from being driven outwardly against the housing, to thereby prevent the carrier blocks from locking, by being driven ...

대표
청구항
▼

[What is claimed is:] [1.]a housing including a central opening for accepting an elongate member therethrough; a first plurality of slip carrier blocks spaced circumferentially about the opening, each slip carrier block having a rear surface and a sloping front face, the sloping front faces together forming a slip bowl bore with a diameter and the slip carrier blocks each being radially moveable between a fully retracted position and an advanced position to adjust the diameter of the bore; a slip mounted on each sloping front face to move over the front ...

이 특허에 인용된 특허 (11)

  1. Lagerstedt Arne (Skrholmen SEX) Lidstrand Eskil (Skrholmen SEX). Device for reciprocating motion of a rotating drilling body of a drilling machine. USP1984064456077.
  2. Lidstrand Eskil (YSkrholmen SEX). Device in rock or earth drilling apparatus for rotary drilling. USP1984074458764.
  3. Daigle Odee P. (Garland TX) Gyongyosi Laszlo (Garland TX). Double rod cylinder feed system. USP1994095343962.
  4. Horning Frederick G. (Salem OH) Pozniko John M. (Salem OH) Welch Karl H. (Salineville OH). Earth drilling apparatus. USP1981034258796.
  5. Boyadjieff George I. (Anaheim CA). Gripping jack system. USP1983094405115.
  6. Cox Don C. (Roanoke TX). Hydraulically actuated slip assembly. USP1986034576254.
  7. Stuart Randolph L.. Method of rotating a tubular member. USP1998055746276.
  8. Baugh Benton F. (Houston TX) Lux Gerard J-M. (Ifs FRX) Ribeyre Jean-Paul (Vert Saint Denis FRX). Pipe gripping apparatus with interlocking plates. USP1984104478292.
  9. Baugh Benton F. (Houston TX). Power slip assembly. USP1981054269277.
  10. Cox Don C. (Roanoke TX). Slip assembly. USP1991075027926.
  11. Penisson Dennis J. (319 Willow St. Raceland LA 70394). Slip-type gripping assembly. USP1997035609226.

이 특허를 인용한 특허 피인용횟수: 85

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  33. Palmer, Larry T.; Kroll, Dennis E.; Hern, Gregory L.. Casing spears and related systems and methods. USP2014128919452.
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