TREA

changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member

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  • CPC
  • F04B49/005
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04BPOSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS F04B49/00Control

Current Industry

F04B49/005changing the phase relationship of two working pistons in one working chamber or the phase-relationship of a piston and a driven distribution member
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for conveying thick matter
    • Patent number 11,959,468
    • Issue date Apr 16, 2024
    • Putzmeister Engineering GmbH
    • Wolf-Michael Petzold
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Micro pumps
    • Patent number 10,018,194
    • Issue date Jul 10, 2018
    • ATOMJET LTD.
    • Robert Alan Harvey
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Apparatus and method for providing a user interface to an informati...
    • Patent number 9,752,568
    • Issue date Sep 5, 2017
    • Koninklijke Philips N.V.
    • Ronaldus Maria Aarts
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Variable radial fluid device with counteracting cams
    • Patent number 9,399,984
    • Issue date Jul 26, 2016
    • Bell Helicopter Textron Inc.
    • Carlos A. Fenny
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable radial fluid devices in series
    • Patent number 9,303,638
    • Issue date Apr 5, 2016
    • Bell Helicopter Textron Inc.
    • Carlos A. Fenny
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High pressure pump of variable displacement
    • Patent number 8,459,970
    • Issue date Jun 11, 2013
    • Charles E. Johnston
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method for controlling a motor vehicle air conditioning system
    • Patent number 5,099,654
    • Issue date Mar 31, 1992
    • Sueddeutsche Kuehlerfabrik Julius Fr. Behr GmbH & Co. KG
    • Wilhelm Baruschke
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Phase adjustable metering pump, and method of adjusting the flow ra...
    • Patent number 5,044,889
    • Issue date Sep 3, 1991
    • Dennis Pinkerton
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    High accuracy disposable cassette infusion pump
    • Patent number 5,006,050
    • Issue date Apr 9, 1991
    • James E. Cooke
    • James E. Cooke
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Variable flow rate pump for fluid
    • Patent number 4,940,035
    • Issue date Jul 10, 1990
    • Her Majesty the Queen in right of New Zealand
    • Peter Waring
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Method of and apparatus for effecting volume control of compressor
    • Patent number 4,723,895
    • Issue date Feb 9, 1988
    • Hitachi, Ltd.
    • Isao Hayase
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Valve controlled pump driven by a motor
    • Patent number 4,482,301
    • Issue date Nov 13, 1984
    • VDO Adolf Schindling AG
    • Horst Schlick
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Positive control for hydrostatic motors, especially radial piston m...
    • Patent number 4,352,319
    • Issue date Oct 5, 1982
    • Fritz Wegerdt
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mechanical lubricating pump
    • Patent number 4,231,716
    • Issue date Nov 4, 1980
    • Tohoku Mikuni Kogyo Co., 1td.
    • Kenichi Kubota
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Throughput-adjustable fluid-displacement machine
    • Patent number 4,202,252
    • Issue date May 13, 1980
    • Feinmechanische Werke Mainz GmbH
    • Bernd Scheufler
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Piston pump
    • Patent number 4,137,826
    • Issue date Feb 6, 1979
    • Shimadzu Seisakushi, Ltd.
    • Yasuo Kita
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable torque fluid device
    • Patent number 4,108,049
    • Issue date Aug 22, 1978
    • Joseph M. Lawson
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Axial piston pump
    • Patent number 3,954,353
    • Issue date May 4, 1976
    • Ludwig Anton Mokesch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3895565
    • Patent number 3,895,565
    • Issue date Jul 22, 1975
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3838943
    • Patent number 3,838,943
    • Issue date Oct 1, 1974
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3777622
    • Patent number 3,777,622
    • Issue date Dec 11, 1973
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3583830
    • Patent number 3,583,830
    • Issue date Jun 8, 1971
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3415059
    • Patent number 3,415,059
    • Issue date Dec 10, 1968
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3403668
    • Patent number 3,403,668
    • Issue date Oct 1, 1968
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3384028
    • Patent number 3,384,028
    • Issue date May 21, 1968
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3249020
    • Patent number 3,249,020
    • Issue date May 3, 1966
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3090361
    • Patent number 3,090,361
    • Issue date May 21, 1963
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    3014624
    • Patent number 3,014,624
    • Issue date Dec 26, 1961
    • E04 - BUILDING
  • Information Patent Grant

    2969022
    • Patent number 2,969,022
    • Issue date Jan 24, 1961
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    2964235
    • Patent number 2,964,235
    • Issue date Dec 13, 1960
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Apparatus for Conveying Thick Matter
    • Publication number 20210239103
    • Publication date Aug 5, 2021
    • Putzmeister Engineering GmbH
    • Wolf-Michael PETZOLD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DIRECT ACTUATED VALVE CONTROL HYDRAULIC PUMP AND MOTOR
    • Publication number 20180209414
    • Publication date Jul 26, 2018
    • Purdue Research Foundation
    • John Henry Lumkes
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ALTERNATING FLOW HYDRAULIC PUMP CIRCUIT
    • Publication number 20180119689
    • Publication date May 3, 2018
    • Regents of the University of Minnesota
    • James D. Van de Ven
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DIGITIZED AUTOMATIC CONTROL METHOD FOR OIL-PUMPING AND DIGITIZED BA...
    • Publication number 20170298923
    • Publication date Oct 19, 2017
    • XINJIANG UYGUR AUTONOMOUS REGION NO 3 MACHINE TOOL WORKS
    • CHANGLE GAO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHOD OF PULSELESSLY DISPLACING FLUID
    • Publication number 20170191474
    • Publication date Jul 6, 2017
    • Graco Minnesota Inc.
    • Bradley H. Hines
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MICRO PUMPS
    • Publication number 20150260181
    • Publication date Sep 17, 2015
    • AtomJet Ltd.
    • Robert Alan Harvey
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE RADIAL FLUID DEVICE WITH COUNTERACTING CAMS
    • Publication number 20130343915
    • Publication date Dec 26, 2013
    • BELL HELICOPTER TEXTRON INC.
    • Carlos A. Fenny
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE RADIAL FLUID DEVICES IN SERIES
    • Publication number 20130343923
    • Publication date Dec 26, 2013
    • BELL HELICOPTER TEXTRON INC.
    • Carlos A. Fenny
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ACTUATOR SYSTEM FOR A CONTROLLED COOLANT PUMP
    • Publication number 20130309103
    • Publication date Nov 21, 2013
    • SCHAEFFLER TECHNOLOGIES AG & CO. KG
    • Markus Popp
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HIGH PRESSURE PUMP OF VARIABLE DISPLACEMENT
    • Publication number 20100047083
    • Publication date Feb 25, 2010
    • Chukar Equipment LLC
    • Charles E. Johnston
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...