DE3445322C2 - - Google Patents

Info

Publication number
DE3445322C2
DE3445322C2 DE3445322A DE3445322A DE3445322C2 DE 3445322 C2 DE3445322 C2 DE 3445322C2 DE 3445322 A DE3445322 A DE 3445322A DE 3445322 A DE3445322 A DE 3445322A DE 3445322 C2 DE3445322 C2 DE 3445322C2
Authority
DE
Germany
Prior art keywords
pliers
holding
screw connection
jaw
working
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE3445322A
Other languages
German (de)
English (en)
Other versions
DE3445322A1 (de
Inventor
Charles W. Marshall Tex. Us Haynes
Frank W. Houston Tex. Us Gault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Varco International Inc
Original Assignee
Varco International Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Varco International Inc filed Critical Varco International Inc
Publication of DE3445322A1 publication Critical patent/DE3445322A1/de
Application granted granted Critical
Publication of DE3445322C2 publication Critical patent/DE3445322C2/de
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/08—Advancing mechanisms
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
    • E21B19/164—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe motor actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Surgical Instruments (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Endoscopes (AREA)
  • Scissors And Nippers (AREA)
  • Earth Drilling (AREA)
DE19843445322 1984-03-19 1984-12-12 Zangensatz zum festziehen und loesen von verschraubungen Granted DE3445322A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US59107784A 1984-03-19 1984-03-19

Publications (2)

Publication Number Publication Date
DE3445322A1 DE3445322A1 (de) 1985-09-19
DE3445322C2 true DE3445322C2 (enExample) 1993-08-26

Family

ID=24364964

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843445322 Granted DE3445322A1 (de) 1984-03-19 1984-12-12 Zangensatz zum festziehen und loesen von verschraubungen

Country Status (7)

Country Link
JP (1) JPS60201885A (enExample)
KR (1) KR850006726A (enExample)
CA (1) CA1228848A (enExample)
DE (1) DE3445322A1 (enExample)
GB (1) GB2155832B (enExample)
MX (1) MX166913B (enExample)
NO (1) NO168261C (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104265210B (zh) * 2014-09-23 2015-12-30 天合石油集团汇丰石油装备有限公司 液压拆装架360°旋扣钳

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967446A (en) * 1957-07-18 1961-01-10 Arthur E Martois Power operated, portable pipe wrench
US3193899A (en) * 1963-05-13 1965-07-13 Up Right Inc Locking hook
US4005621A (en) * 1976-04-27 1977-02-01 Joy Manufacturing Company Drilling tong

Also Published As

Publication number Publication date
DE3445322A1 (de) 1985-09-19
NO168261B (no) 1991-10-21
GB2155832B (en) 1988-02-03
NO168261C (no) 1992-01-29
GB2155832A (en) 1985-10-02
KR850006726A (ko) 1985-10-16
GB8430464D0 (en) 1985-01-09
CA1228848A (en) 1987-11-03
NO851068L (no) 1985-09-20
MX166913B (es) 1993-02-12
JPS60201885A (ja) 1985-10-12

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: COOPER INDUSTRIES, INC., HOUSTON, TEX., US

8128 New person/name/address of the agent

Representative=s name: GRUENECKER, A., DIPL.-ING. KINKELDEY, H., DIPL.-IN

8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: VARCO INTERNATIONAL, INC., ORANGE, CALIF., US

8128 New person/name/address of the agent

Representative=s name: GRUENECKER, A., DIPL.-ING. KINKELDEY, H., DIPL.-IN

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee