TREA

the surfaces of the inner and outer member, forming the working space, being surfaces of revolution

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  • CPC
  • F04C2/3564
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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 F04C2/00Rotary-piston machines or pumps

Current Industry

F04C2/3564the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary compressor having a rolling piston with coupling groove
    • Patent number 11,060,521
    • Issue date Jul 13, 2021
    • LG Electronics Inc.
    • Seseok Seol
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,002,279
    • Issue date May 11, 2021
    • LG Electronics Inc.
    • Gukhyun Cho
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hydraulic pump having a cylindrical roller within a housing having...
    • Patent number 10,385,850
    • Issue date Aug 20, 2019
    • Goodrich Actuations Systems Limited
    • Robert A. Pawlik
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor and air conditioner including the same
    • Patent number 9,556,868
    • Issue date Jan 31, 2017
    • Samsung Electronics Co., Ltd.
    • Ki Hoon Nam
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Swinging abutment rotary pump
    • Patent number 9,011,123
    • Issue date Apr 21, 2015
    • John McIntyre
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable displacement vane pump
    • Patent number 8,142,173
    • Issue date Mar 27, 2012
    • Hitachi, Ltd.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid mover
    • Patent number 6,095,783
    • Issue date Aug 1, 2000
    • Craig N. Hansen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary fluid-flow machine with thin-walled annular piston
    • Patent number 4,580,957
    • Issue date Apr 8, 1986
    • Fickelscher; Kurt G.
    • Kurt G. Fickelscher
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary pump with wedge roller eccentric means driving the rotor
    • Patent number 4,265,605
    • Issue date May 5, 1981
    • Kazuichi Ito
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fluid pump
    • Patent number 4,202,657
    • Issue date May 13, 1980
    • K-B Engineering Co.
    • John E. Kice
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3894440
    • Patent number 3,894,440
    • Issue date Jul 15, 1975
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3852000
    • Patent number 3,852,000
    • Issue date Dec 3, 1974
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3796519
    • Patent number 3,796,519
    • Issue date Mar 12, 1974
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3632232
    • Patent number 3,632,232
    • Issue date Jan 4, 1972
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3551077
    • Patent number 3,551,077
    • Issue date Dec 29, 1970
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3250223
    • Patent number 3,250,223
    • Issue date May 10, 1966
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3162139
    • Patent number 3,162,139
    • Issue date Dec 22, 1964
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3107846
    • Patent number 3,107,846
    • Issue date Oct 22, 1963
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3026811
    • Patent number 3,026,811
    • Issue date Mar 27, 1962
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2922378
    • Patent number 2,922,378
    • Issue date Jan 26, 1960
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2916999
    • Patent number 2,916,999
    • Issue date Dec 15, 1959
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    2653548
    • Patent number 2,653,548
    • Issue date Sep 29, 1953
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    2293541
    • Patent number 2,293,541
    • Issue date Aug 18, 1942
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1889822
    • Patent number 1,889,822
    • Issue date Dec 6, 1932
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1692639
    • Patent number 1,692,639
    • Issue date Nov 20, 1928
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    1623378
    • Patent number 1,623,378
    • Issue date Apr 5, 1927
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    USE OF A COMPOSITION AS REFRIGERANT IN COMPRESSOR, COMPRESSOR, AND...
    • Publication number 20230416580
    • Publication date Dec 28, 2023
    • DAIKIN INDUSTRIES, LTD.
    • Yuuko ITOU
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20200056612
    • Publication date Feb 20, 2020
    • LG ELECTRONICS INC.
    • Seseok SEOL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20190024658
    • Publication date Jan 24, 2019
    • LG ELECTRONICS INC.
    • Gukhyun CHO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY APPARATUS WITH PROTECTIVE KNIFE
    • Publication number 20180347562
    • Publication date Dec 6, 2018
    • Deere & Company
    • DOUGLAS S. BASE
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
  • Information Patent Application

    Hydraulic Pump
    • Publication number 20170009769
    • Publication date Jan 12, 2017
    • HS Wroclaw Sp. z o. o.
    • Robert A. Pawlik
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR AND AIR CONDITIONER INCLUDING THE SAME
    • Publication number 20150040608
    • Publication date Feb 12, 2015
    • Samsung Electronics Co., Ltd.
    • Ki Hoon NAM
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT VANE PUMP
    • Publication number 20090291000
    • Publication date Nov 26, 2009
    • Hitachi, Ltd.
    • Koji Saga
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...