cathead actuated

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  • CPC
  • E21B19/162
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus and methods for tong operation

    • Patent number 10,822,893
    • Issue date Nov 3, 2020
    • Weatherford Technology Holdings, LLC
    • Georg Zimbelmann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Top drive with mounted winch

    • Patent number 9,175,526
    • Issue date Nov 3, 2015
    • Tesco Corporation
    • Jonathan Brian O'Blenes
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    System for measuring the torque applied to a threaded connection be...

    • Patent number 5,509,316
    • Issue date Apr 23, 1996
    • Connection Technology Ltd.
    • Terry Hall
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Pipe spinner assembly

    • Patent number 4,649,778
    • Issue date Mar 17, 1987
    • Clifford C. Bottoms
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for torque monitoring

    • Patent number 4,567,779
    • Issue date Feb 4, 1986
    • Analog Data Systems, Inc.
    • Paul Byrne
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for use in drill string make up

    • Patent number 4,501,335
    • Issue date Feb 26, 1985
    • Steven N. Gann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Torque control system for catheads

    • Patent number 4,444,273
    • Issue date Apr 24, 1984
    • Glenn E. Ruby
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Pipe spinner assembly

    • Patent number 4,306,471
    • Issue date Dec 22, 1981
    • Clifford C. Bottoms
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic catworks system

    • Patent number 4,253,354
    • Issue date Mar 3, 1981
    • James L. Walker
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic torque indicator

    • Patent number 4,202,208
    • Issue date May 13, 1980
    • Joy Manufacturing Company
    • Joseph H. Byrne
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    3722331

    • Patent number 3,722,331
    • Issue date Mar 27, 1973
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2916954

    • Patent number 2,916,954
    • Issue date Dec 15, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2749091

    • Patent number 2,749,091
    • Issue date Jun 5, 1956
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2682892

    • Patent number 2,682,892
    • Issue date Jul 6, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2676789

    • Patent number 2,676,789
    • Issue date Apr 27, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2640683

    • Patent number 2,640,683
    • Issue date Jun 2, 1953
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2640684

    • Patent number 2,640,684
    • Issue date Jun 2, 1953
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2565345

    • Patent number 2,565,345
    • Issue date Aug 21, 1951
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2556267

    • Patent number 2,556,267
    • Issue date Jun 12, 1951
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2556938

    • Patent number 2,556,938
    • Issue date Jun 12, 1951
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2537403

    • Patent number 2,537,403
    • Issue date Jan 9, 1951
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2527456

    • Patent number 2,527,456
    • Issue date Oct 24, 1950
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    2526739

    • Patent number 2,526,739
    • Issue date Oct 24, 1950
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2525069

    • Patent number 2,525,069
    • Issue date Oct 10, 1950
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    2502998

    • Patent number 2,502,998
    • Issue date Apr 4, 1950
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2493129

    • Patent number 2,493,129
    • Issue date Jan 3, 1950
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2437129

    • Patent number 2,437,129
    • Issue date Mar 2, 1948
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2436717

    • Patent number 2,436,717
    • Issue date Feb 24, 1948
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2434333

    • Patent number 2,434,333
    • Issue date Jan 13, 1948
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2391939

    • Patent number 2,391,939
    • Issue date Jan 1, 1946
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    TOP DRIVE WITH MOUNTED WINCH

    • Publication number 20130112430
    • Publication date May 9, 2013
    • Tesco Corporation
    • Jonathan Brian O'Blenes
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Device for Handling Pipes

    • Publication number 20090090221
    • Publication date Apr 9, 2009
    • Jens Lutzhoft
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS