TREA

and having a slidable movement

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  • CPC
  • F04B7/025
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS F04B7/00Piston machines or pumps characterised by having positively-driven valving

Current Industry

F04B7/025and having a slidable movement
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Thick matter pump with a cleaning cartridge and blocking slide
    • Patent number 5,957,675
    • Issue date Sep 28, 1999
    • Putzmeister Aktiengesellschaft
    • Klaus Buehrer
    • B08 - CLEANING
  • Information Patent Grant

    Slide valve for a twin-cylinder pump for viscous fluids
    • Patent number 5,746,247
    • Issue date May 5, 1998
    • Putzmeister-Werk Maschinenfabrik GmbH
    • Karl Schlecht
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method and device for controlling a double-cylinder thick matter pump
    • Patent number 5,344,290
    • Issue date Sep 6, 1994
    • Putzmeister-Werk Maschinenfabrik GmbH
    • Hartmut Benckert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Transfer tube material flow management
    • Patent number 5,330,327
    • Issue date Jul 19, 1994
    • Schwing America, Inc.
    • Thomas M. Anderson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Slurry pump with discharge cylinders, especially two-cylinder concr...
    • Patent number 5,316,453
    • Issue date May 31, 1994
    • Friedrich Wilh. Schwing GmbH
    • Friedrich Schwing
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method of recovering energy from reverse osmosis waste streams
    • Patent number 5,306,428
    • Issue date Apr 26, 1994
    • John B. Tonner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compact twin piston pump
    • Patent number 4,884,594
    • Issue date Dec 5, 1989
    • Marlen Research Corporation
    • Richard G. Powers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compact twin piston pump
    • Patent number 4,869,653
    • Issue date Sep 26, 1989
    • Marlen Research Corporation
    • Richard G. Powers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compact twin piston pump
    • Patent number 4,869,655
    • Issue date Sep 26, 1989
    • Marlen Research Corporation
    • Richard G. Powers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hydraulic pump gate apparatus
    • Patent number 4,854,838
    • Issue date Aug 8, 1989
    • David O. Swain
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Two-cylinder viscous liquid pump with pipe switch
    • Patent number 4,681,022
    • Issue date Jul 21, 1987
    • Friedrich Wilh. Schwing GmbH
    • Friedrich Schwing
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Valve unit for use in concrete pumps
    • Patent number 4,466,782
    • Issue date Aug 21, 1984
    • Niigata Engineering Co., Ltd.
    • Shigeaki Hirashima
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    In-line fluid pump and shuttle valve therefor
    • Patent number 4,424,012
    • Issue date Jan 3, 1984
    • Inotek-Westmoreland Venture
    • Julius C. Westmoreland
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Pivotable pipe slide for use in a two cylinder concrete pump
    • Patent number 4,173,436
    • Issue date Nov 6, 1979
    • Maschinenfabrik Walter Scheele KG
    • Heinz Bille
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Internal combustion assisted hydraulic engine
    • Patent number 4,097,198
    • Issue date Jun 27, 1978
    • Allen R. Herron
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Internal combustion assisted hydraulic engine
    • Patent number 3,995,974
    • Issue date Dec 7, 1976
    • Allen R. Herron
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3897180
    • Patent number 3,897,180
    • Issue date Jul 29, 1975
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3682575
    • Patent number 3,682,575
    • Issue date Aug 8, 1972
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3621877
    • Patent number 3,621,877
    • Issue date Nov 23, 1971
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3552440
    • Patent number 3,552,440
    • Issue date Jan 5, 1971
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3465685
    • Patent number 3,465,685
    • Issue date Sep 9, 1969
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3327634
    • Patent number 3,327,634
    • Issue date Jun 27, 1967
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3114325
    • Patent number 3,114,325
    • Issue date Dec 17, 1963
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents