TREA

the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation

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  • CPC
  • F04C18/3441
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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 F04C18/00Rotary-piston pumps specially adapted for elastic fluids

Current Industry

F04C18/3441the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Multistage compressor system with intercooler
    • Patent number 12,163,518
    • Issue date Dec 10, 2024
    • Mark W. Wood
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Flange and pump body assembly with same
    • Patent number 12,152,584
    • Issue date Nov 26, 2024
    • Gree Electric Appliances, Inc. of Zhuhai
    • Mingzhu Dong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 12,110,894
    • Issue date Oct 8, 2024
    • LG Electronics Inc.
    • Jinung Shin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 12,038,002
    • Issue date Jul 16, 2024
    • LG Electronics Inc.
    • Kiyoul Noh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor with specific suction geometry
    • Patent number RE50022
    • Issue date Jun 25, 2024
    • LG Electronics Inc.
    • Jinung Shin
  • Information Patent Grant

    Vane rotary compressor with pressure reducing member inserted into...
    • Patent number 11,971,032
    • Issue date Apr 30, 2024
    • LG Electronics Inc.
    • Kiyoul Noh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump
    • Patent number 11,927,190
    • Issue date Mar 12, 2024
    • SCHWÄBISCHE HÜTTENWERKE AUTOMOTIVE GMBH
    • Thomas Tontsch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuuming device and vacuum apparatus
    • Patent number 11,905,958
    • Issue date Feb 20, 2024
    • Hong Wang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor having improved vane chattering performance
    • Patent number 11,891,995
    • Issue date Feb 6, 2024
    • LG Electronics Inc.
    • Seseok Seol
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary slide assembly, and method for monitoring the wear of a slid...
    • Patent number 11,873,814
    • Issue date Jan 16, 2024
    • Gebr. Becker GmbH
    • Stefan Beierlein
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electric priming pump device
    • Patent number 11,674,516
    • Issue date Jun 13, 2023
    • Joshua J. McPherson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor
    • Patent number 11,530,612
    • Issue date Dec 20, 2022
    • LG Electronics Inc.
    • Seokhwan Moon
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil supply to the back pressure groove of a vane pump
    • Patent number 11,519,270
    • Issue date Dec 6, 2022
    • Gree Electric Appliances, Inc. of Zhuhai
    • Jia Xu
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Portable, rotary vane vacuum pump with a quick oil change system
    • Patent number 11,506,207
    • Issue date Nov 22, 2022
    • Gregory S. Sundheim
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane rotary compressor
    • Patent number 11,499,555
    • Issue date Nov 15, 2022
    • LG Electronics Inc.
    • Kiyoul Noh
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multistage compressor system with intercooler
    • Patent number 11,480,178
    • Issue date Oct 25, 2022
    • Mark W. Wood
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Slide vane, pump body assembly, compressor and air conditioner havi...
    • Patent number 11,353,024
    • Issue date Jun 7, 2022
    • Gree Electric Appliances, Inc. of Zhuhai
    • Jia Xu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vane pump including pressure relief groove
    • Patent number 11,346,343
    • Issue date May 31, 2022
    • Taiho Kogyo Co., Ltd.
    • Yuji Suzuki
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Displacement expanding apparatus and engine including the same
    • Patent number 11,326,453
    • Issue date May 10, 2022
    • Lucas Ihsl
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vacuuming device and vacuum apparatus
    • Patent number 11,293,436
    • Issue date Apr 5, 2022
    • Hong Wang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Motor vehicle vacuum pump
    • Patent number 11,268,514
    • Issue date Mar 8, 2022
    • Pierburg Pump Technology GmbH
    • Stefan Hammer
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Vane-type gas pump
    • Patent number 11,174,864
    • Issue date Nov 16, 2021
    • PITERBURG PUMP TECHNOLOGY GMBH
    • Steffen Schnurr
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor with exhaust structure having multiple rotating plates e...
    • Patent number 11,168,692
    • Issue date Nov 9, 2021
    • GREE GRFEN REFRIGERATION TECHNOLOGY CENTER CO., LTD. OF ZHUHAI
    • Hui Huang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump with separate oil outlet with relief valve
    • Patent number 11,053,940
    • Issue date Jul 6, 2021
    • Joma-Polytec GmbH
    • Hans-Peter Ott
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Concentric vane compressor
    • Patent number 11,022,118
    • Issue date Jun 1, 2021
    • Mark W. Wood
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Automotive vacuum pump
    • Patent number 10,982,673
    • Issue date Apr 20, 2021
    • Pierburg Pump Technology GmbH
    • Giorgio Peroni
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Two-stage rotary compressor
    • Patent number 10,883,501
    • Issue date Jan 5, 2021
    • LG Electronics Inc.
    • Seokhwan Moon
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary compressor arrangement
    • Patent number 10,876,530
    • Issue date Dec 29, 2020
    • Societe des Produits Nestle S.A.
    • Youcef Ait Bouziad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Vacuum pump with eccentrically driven vane (eccentric pump design w...
    • Patent number 10,837,283
    • Issue date Nov 17, 2020
    • WABCO Europe BVBA
    • David Heaps
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary compressor arrangement with stationary shaft with inlet and...
    • Patent number 10,823,173
    • Issue date Nov 3, 2020
    • Societe des Produits Nestle S.A.
    • Youcef Ait Bouziad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20250035113
    • Publication date Jan 30, 2025
    • LG ELECTRONICS INC.
    • Minho LEE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY COMPRESSOR
    • Publication number 20240309870
    • Publication date Sep 19, 2024
    • LG ELECTRONICS INC.
    • Joonhong Park
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY VANE VACUUM PUMP WITH GAS BALLAST ASSEMBLY
    • Publication number 20240077078
    • Publication date Mar 7, 2024
    • Leybold (Tianjin) International Trade Co Ltd
    • Li Ouyang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Flange and Pump Body Assembly with Same
    • Publication number 20230332600
    • Publication date Oct 19, 2023
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Mingzhu Dong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTISTAGE COMPRESSOR SYSTEM WITH INTERCOOLER
    • Publication number 20230144667
    • Publication date May 11, 2023
    • Mark W. Wood
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE ROTARY COMPRESSOR
    • Publication number 20230047035
    • Publication date Feb 16, 2023
    • LG ELECTRONICS INC.
    • Kiyoul NOH
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    X-RAY INSPECTION APPARATUS, X-RAY INSPECTION SYSTEM, IMAGE MANAGEME...
    • Publication number 20230046611
    • Publication date Feb 16, 2023
    • Omron Corporation
    • Hironori KASAHARA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY SLIDE ASSEMBLY, AND METHOD FOR MONITORING THE WEAR OF A SLID...
    • Publication number 20220356880
    • Publication date Nov 10, 2022
    • Gebr. Becker GmbH
    • Stefan BEIERLEIN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUMING DEVICE AND VACUUM APPARATUS
    • Publication number 20220170464
    • Publication date Jun 2, 2022
    • Hong WANG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY-VANE MECHANISM FOR ENGINES AND COMPRESSORS
    • Publication number 20210396231
    • Publication date Dec 23, 2021
    • Vladimir Shapovalov
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VACUUM PUMP
    • Publication number 20210332820
    • Publication date Oct 28, 2021
    • SCHWABISCHE HUTTENWERKE AUTOMOTIVE GMBH
    • Thomas Tontsch
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DISPLACEMENT EXPANDING APPARATUS AND ENGINE INCLUDING THE SAME
    • Publication number 20210293146
    • Publication date Sep 23, 2021
    • Lucas IHSL
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SLIDE VANE, PUMP BODY ASSEMBLY, COMPRESSOR AND AIR CONDITIONER HAVI...
    • Publication number 20210239117
    • Publication date Aug 5, 2021
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Jia XU
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR PUMP BODY, COMPRESSOR, AND AIR CONDITIONER
    • Publication number 20210231123
    • Publication date Jul 29, 2021
    • GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    • Pengkai WAN
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VACUUMING DEVICE AND VACUUM APPARATUS
    • Publication number 20210102537
    • Publication date Apr 8, 2021
    • HONG WANG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE ROTARY COMPRESSOR
    • Publication number 20200277956
    • Publication date Sep 3, 2020
    • LG Electronics Inc.
    • Kiyoul NOH
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTISTAGE COMPRESSOR SYSTEM WITH INTERCOOLER
    • Publication number 20200173438
    • Publication date Jun 4, 2020
    • Mark W. Wood
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VANE-TYPE GAS PUMP
    • Publication number 20190345936
    • Publication date Nov 14, 2019
    • PIERBURG PUMP TECHNOLOGY GMBH
    • STEFFEN SCHNURR
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COMPRESSOR ARRANGEMENT WITH INTEGRATED MOTOR
    • Publication number 20190203713
    • Publication date Jul 4, 2019
    • Nestec S.A.
    • Youcef Ait Bouziad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY CYLINDER TYPE COMPRESSOR
    • Publication number 20190203714
    • Publication date Jul 4, 2019
    • Denso Corporation
    • Yuichi OHNO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    AUTOMOTIVE VACUUM PUMP
    • Publication number 20190093656
    • Publication date Mar 28, 2019
    • PIERBURG PUMP TECHNOLOGY GMBH
    • GIORGIO PERONI
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    CONCENTRIC VANE COMPRESSOR
    • Publication number 20190024661
    • Publication date Jan 24, 2019
    • Mark W. Wood
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TWIN VANE ROTARY VACUUM PUMP
    • Publication number 20190017507
    • Publication date Jan 17, 2019
    • WABCO EUROPE BVBA
    • David HEAPS
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    TWO-STAGE ROTARY COMPRESSOR
    • Publication number 20180372102
    • Publication date Dec 27, 2018
    • LG ELECTRONICS INC.
    • Seokhwan MOON
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    ROTARY COMPRESSOR ARRANGEMENT
    • Publication number 20180328363
    • Publication date Nov 15, 2018
    • Nestec S.A.
    • Youcef AIT BOUZIAD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LUBRICATED AUTOMOTIVE VACUUM PUMP
    • Publication number 20180245592
    • Publication date Aug 30, 2018
    • PIERBURG PUMP TECHNOLOGY GMBH
    • Giorgio PERONI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    AN INTELLIGENT VACUUM PUMP WITH LOW POWER CONSUMPTION
    • Publication number 20180209271
    • Publication date Jul 26, 2018
    • PADMINI VNA MECHATRONICS PVT. LTD.
    • KABIR BHANDARI
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    MECHANICAL AUTOMOTIVE VACUUM PUMP
    • Publication number 20180180048
    • Publication date Jun 28, 2018
    • PIERBURG PUMP TECHNOLOGY GMBH
    • GIORGIO PERONI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    AUTOMOTIVE VACUUM PUMP
    • Publication number 20180156218
    • Publication date Jun 7, 2018
    • PIERBURG PUMP TECHNOLOGY GMBH
    • GIORGIO PERONI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    CYLINDER-ROTATION-TYPE COMPRESSOR
    • Publication number 20180017056
    • Publication date Jan 18, 2018
    • Denso Corporation
    • Yuichi OHNO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...