with tripping-gear Tripping of valves

Patents Grantslast 30 patents

  • Information Patent Grant

    Asymmetrically accelerated vibrator for feeding materials

    • Patent number 6,971,301
    • Issue date Dec 6, 2005
    • Vibro Industries, Inc.
    • Leroy A. Johnson
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Valving system for a downhole hydraulically actuated pump

    • Patent number 6,948,917
    • Issue date Sep 27, 2005
    • Donald Carrens
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid driven reciprocating pump

    • Patent number 5,758,563
    • Issue date Jun 2, 1998
    • Holcom Co.
    • Ronald Lee Robinson
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pressure booster

    • Patent number 5,399,071
    • Issue date Mar 21, 1995
    • Moshe Abraham
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Reduced icing low friction air valve

    • Patent number 5,363,739
    • Issue date Nov 15, 1994
    • Graco Inc.
    • Chris W. Sydow
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Air valve actuator for reciprocable machine

    • Patent number 5,280,808
    • Issue date Jan 25, 1994
    • Graco Inc.
    • Daniel J. Kvinge
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Air valve actuator for reciprocable machine

    • Patent number 5,240,390
    • Issue date Aug 31, 1993
    • Graco Inc.
    • Daniel J. Kvinge
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Device for the generation of auxiliary pressure

    • Patent number 5,137,436
    • Issue date Aug 11, 1992
    • Alfred Teves GmbH
    • Guenther Vogel
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Fluid pump

    • Patent number 5,083,906
    • Issue date Jan 28, 1992
    • Benjamin R. Du
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Switching device for reciprocating pumps

    • Patent number 5,002,468
    • Issue date Mar 26, 1991
    • Yamada Yuki Seizo Co., Ltd.
    • Minoru Murata
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Automatically-reversing piston-and-cylinder unit

    • Patent number 4,899,638
    • Issue date Feb 13, 1990
    • Harold D. Brown
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Expansible chamber motor with snap-acting valve

    • Patent number 4,879,943
    • Issue date Nov 14, 1989
    • McNeil (Ohio) Corporation
    • Ayzik Grach
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Automatic reversing valve

    • Patent number 4,870,890
    • Issue date Oct 3, 1989
    • Philip L. Cowan
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Fluid-driven pump

    • Patent number 4,867,654
    • Issue date Sep 19, 1989
    • American Thermal Corporation
    • William H. Zebuhr
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pilot valve

    • Patent number 4,789,131
    • Issue date Dec 6, 1988
    • Graco Inc.
    • William D. Vork
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Apparatus for controlling the flow of a pressure fluid in a motor

    • Patent number 4,733,599
    • Issue date Mar 29, 1988
    • Ing. Waldhauser Maschinenfabrik GmbH & Co. KG
    • Siegbert Knieschek
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Fluid pressure operated piston engine assembly

    • Patent number 4,550,642
    • Issue date Nov 5, 1985
    • Nordson Corporation
    • Alfred Langer
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Continuously operating piston pump

    • Patent number 3,999,896
    • Issue date Dec 28, 1976
    • Martin Sebastiani
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3589839

    • Patent number 3,589,839
    • Issue date Jun 29, 1971
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3427929

    • Patent number 3,427,929
    • Issue date Feb 18, 1969
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3070030

    • Patent number 3,070,030
    • Issue date Dec 25, 1962
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    2750930

    • Patent number 2,750,930
    • Issue date Jun 19, 1956
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    2021469

    • Patent number 2,021,469
    • Issue date Nov 19, 1935
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    1534598

    • Patent number 1,534,598
    • Issue date Apr 21, 1925
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents