FR1247617A - Improvements to safety locking mechanisms for side-closing lifting collars - Google Patents

Improvements to safety locking mechanisms for side-closing lifting collars

Info

Publication number
FR1247617A
FR1247617A FR817083A FR817083A FR1247617A FR 1247617 A FR1247617 A FR 1247617A FR 817083 A FR817083 A FR 817083A FR 817083 A FR817083 A FR 817083A FR 1247617 A FR1247617 A FR 1247617A
Authority
FR
France
Prior art keywords
locking mechanisms
safety locking
closing lifting
collars
lifting collars
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
Application number
FR817083A
Other languages
French (fr)
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.)
WEB WILSON OIL TOOLS Inc
Original Assignee
WEB WILSON OIL TOOLS 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 WEB WILSON OIL TOOLS Inc filed Critical WEB WILSON OIL TOOLS Inc
Application granted granted Critical
Publication of FR1247617A publication Critical patent/FR1247617A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR817083A 1959-10-28 1960-01-29 Improvements to safety locking mechanisms for side-closing lifting collars Expired FR1247617A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84929159A 1959-10-28 1959-10-28

Publications (1)

Publication Number Publication Date
FR1247617A true FR1247617A (en) 1960-12-02

Family

ID=25305490

Family Applications (1)

Application Number Title Priority Date Filing Date
FR817083A Expired FR1247617A (en) 1959-10-28 1960-01-29 Improvements to safety locking mechanisms for side-closing lifting collars

Country Status (1)

Country Link
FR (1) FR1247617A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007034235A2 (en) * 2005-09-20 2007-03-29 Varco I/P, Inc. A link for supporting a wellbore apparatus and a method for handling pipe
US7303021B2 (en) 2005-09-20 2007-12-04 Varco I/P, Inc. Wellbore rig elevator systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007034235A2 (en) * 2005-09-20 2007-03-29 Varco I/P, Inc. A link for supporting a wellbore apparatus and a method for handling pipe
WO2007034235A3 (en) * 2005-09-20 2007-05-18 Varco Int A link for supporting a wellbore apparatus and a method for handling pipe
US7303021B2 (en) 2005-09-20 2007-12-04 Varco I/P, Inc. Wellbore rig elevator systems

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