TREA

Pumps with means for venting areas other than the working chamber

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Industry

  • CPC
  • F04C2220/40
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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F04Liquid pumps F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS F04C2220/00Application

Current Industry

F04C2220/40Pumps with means for venting areas other than the working chamber
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Screw compressor for a utility vehicle
    • Patent number 11,359,630
    • Issue date Jun 14, 2022
    • KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    • Gilles Hebrard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Flushable device for measuring flow processes of fluids
    • Patent number 10,584,704
    • Issue date Mar 10, 2020
    • AVL List GmbH
    • Otfried Derschmidt
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Progressing cavity stator with gas breakout port
    • Patent number 9,850,897
    • Issue date Dec 26, 2017
    • Cameron International Corporation
    • Derek L. Twidale
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Grant

    Vane pumps with vane wear detection
    • Patent number 9,828,992
    • Issue date Nov 28, 2017
    • Hamilton Sundstrand Corporation
    • Craig T. Stambaugh
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Motor driven compressor and hermetic sealing inspection method for...
    • Patent number 9,121,411
    • Issue date Sep 1, 2015
    • Kabushiki Kaisha Toyota Jidoshokki
    • Tatsuya Ito
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 7,153,093
    • Issue date Dec 26, 2006
    • Leybold Vacuum GmbH
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor with vented oil pump
    • Patent number 6,746,216
    • Issue date Jun 8, 2004
    • Scroll Technologies
    • Zili Sun
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid machinery having a helical mechanism with through holes for v...
    • Patent number 6,589,026
    • Issue date Jul 8, 2003
    • Toshiba Carrier Corporation
    • Takayoshi Fujiwara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gas actuated slide valve in a screw compressor
    • Patent number 5,509,273
    • Issue date Apr 23, 1996
    • American Standard Inc.
    • Rodney L. Lakowske
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Lubrication of refrigerant compressor bearings
    • Patent number 5,469,713
    • Issue date Nov 28, 1995
    • SKF USA, Inc.
    • Frank Wardle
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Scroll compressor lubrication control
    • Patent number 5,306,126
    • Issue date Apr 26, 1994
    • Tecumseh Products Company
    • Hubert Richardson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method of manufacturing a multipiece eccentric shaft
    • Patent number 5,247,736
    • Issue date Sep 28, 1993
    • Carrier Corporation
    • Howard H. Fraser
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vented compressor lubrication system
    • Patent number 5,176,506
    • Issue date Jan 5, 1993
    • Copeland Corporation
    • Stephen M. Siebel
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multipiece eccentric shaft
    • Patent number 5,026,262
    • Issue date Jun 25, 1991
    • Carrier Corporation
    • David C. Baumann
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor having oil-actuated compliance mechanism
    • Patent number 4,884,955
    • Issue date Dec 5, 1989
    • Tecumseh Products Company
    • Hubert Richardson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor shaft collar through port for pressure equalization betw...
    • Patent number 4,877,381
    • Issue date Oct 31, 1989
    • Tecumseh Products Company
    • William C. Johnson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Scroll compressor with orbiting scroll member biased by oil pressure
    • Patent number 4,875,838
    • Issue date Oct 24, 1989
    • Tecumseh Products Company
    • Hubert Richardson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor with integral oil cooling
    • Patent number 4,780,061
    • Issue date Oct 25, 1988
    • American Standard Inc.
    • Arthur L. Butterworth
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary internal combustion engine
    • Patent number 4,662,329
    • Issue date May 5, 1987
    • Earl G. Roggenburk
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Rotor-shaft bearing apparatus for rotary compressors
    • Patent number 4,657,495
    • Issue date Apr 14, 1987
    • Nippon Piston Ring Co., Ltd.
    • Hiroshi Sakamaki
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3292551
    • Patent number 3,292,551
    • Issue date Dec 20, 1966
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2951633
    • Patent number 2,951,633
    • Issue date Sep 6, 1960
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2674953
    • Patent number 2,674,953
    • Issue date Apr 13, 1954
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    Screw Compressor for a Utility Vehicle
    • Publication number 20190390673
    • Publication date Dec 26, 2019
    • Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbH
    • Gilles HEBRARD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUSHABLE DEVICE FOR MEASURING FLOW PROCESSES OF FLUIDS
    • Publication number 20190145408
    • Publication date May 16, 2019
    • AVL LIST GMBH
    • OTFRIED DERSCHMIDT
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20140112815
    • Publication date Apr 24, 2014
    • EBARA CORPORATION
    • Soichi Kudara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MOTOR-DRIVEN COMPRESSOR AND HERMETIC SEALING INSPECTION METHOD FOR...
    • Publication number 20130202411
    • Publication date Aug 8, 2013
    • KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    • Tatsuya ITO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Noise Reduced Variable Displacement Vane Pump
    • Publication number 20080304961
    • Publication date Dec 11, 2008
    • Gurvinder Bhogal
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Vacuum pump
    • Publication number 20050147517
    • Publication date Jul 7, 2005
    • Thomas Dreifert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Scroll compressor with vented oil pump
    • Publication number 20040013542
    • Publication date Jan 22, 2004
    • Zili Sun
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Fluid machinery
    • Publication number 20020197177
    • Publication date Dec 26, 2002
    • Takayoshi Fujiwara
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...