TREA

with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor

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Industry

  • CPC
  • F04C18/126
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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

F04C18/126with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor
Industries

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    METHOD FOR STOPPING A VACUUM PUMP
    • Publication number 20240035472
    • Publication date Feb 1, 2024
    • Edwards S.R.O
    • Richard Glyn Horler
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    EGR PUMP LOCKING MECHANISM AND METHOD TO LOCK EGR PUMP ROTATING GRO...
    • Publication number 20240003319
    • Publication date Jan 4, 2024
    • Eaton Intelligent Power Limited
    • Douglas Anthony HUGHES
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    EGR PUMP SYSTEM AND CONTROL METHOD OF EGR PUMP
    • Publication number 20230374958
    • Publication date Nov 23, 2023
    • Eaton Intelligent Power Limited
    • Douglas Anthony Hughes
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Application

    DRY VACUUM PUMP AND MANUFACTURING METHOD
    • Publication number 20230323878
    • Publication date Oct 12, 2023
    • PFEIFFER VACUUM
    • Laetitia POPIN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROOTS PUMP
    • Publication number 20230304497
    • Publication date Sep 28, 2023
    • KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    • Masaya YOSHIDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Low Coefficient of Expansion Rotors for Vacuum Boosters
    • Publication number 20230265849
    • Publication date Aug 24, 2023
    • Gardner Denver, Inc.
    • Roger Clive Palmer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    REAR DRIVE EGR PUMP
    • Publication number 20230258179
    • Publication date Aug 17, 2023
    • Eaton Intelligent Power Limited
    • Nathan DEVILLE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM SYSTEM HAVING CONDENSER AND ROOT VACUUM PUMP SET
    • Publication number 20230167822
    • Publication date Jun 1, 2023
    • Raymond Zhou Shaw
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Application

    DRY VACUUM PUMP
    • Publication number 20230143219
    • Publication date May 11, 2023
    • ATELIERS BUSCH SA
    • Didier MÜLLER
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM SYSTEM HAVING CONDENSER AND ROOT VACUUM PUMP SET
    • Publication number 20230096279
    • Publication date Mar 30, 2023
    • Raymond Zhou Shaw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTIPLE STAGE VACUUM PUMP
    • Publication number 20230076739
    • Publication date Mar 9, 2023
    • Edwards Limited
    • Alan Ernest Kinnaird Holbrook
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DRY VACUUM PUMP
    • Publication number 20230033204
    • Publication date Feb 2, 2023
    • PFEIFFER VACUUM
    • Yann OLIVIER
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    REDUNDANT PUMPING SYSTEM AND PUMPING METHOD BY MEANS OF THIS PUMPIN...
    • Publication number 20230003208
    • Publication date Jan 5, 2023
    • ATELIERS BUSCH SA
    • Paul Alers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP COOLER FOR COOLING A PUMPED FLUID IN A MULTISTAGE VACUU...
    • Publication number 20220412361
    • Publication date Dec 29, 2022
    • Edwards Limited
    • Mark Edward Tomkins
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP APPARATUS
    • Publication number 20220389930
    • Publication date Dec 8, 2022
    • Edwards Limited
    • Paul Milner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SENSOR ASSEMBLY
    • Publication number 20220372981
    • Publication date Nov 24, 2022
    • Edwards Limited
    • Peter Anthony McBrien
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP UNIT
    • Publication number 20220299030
    • Publication date Sep 22, 2022
    • PFEIFFER VACUUM
    • Eric MANDALLAZ
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    EGR PUMP SYSTEM WITH OVERHUNG ROTORS
    • Publication number 20220213852
    • Publication date Jul 7, 2022
    • Eaton Intelligent Power Limited
    • Brandon Dennis Biller
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    POSITIVE DISPLACEMENT ROOTS BLOWER NOISE SUPPRESSION
    • Publication number 20220145885
    • Publication date May 12, 2022
    • Ingersoll-Rand Industrial U.S., Inc.
    • Michael J. Lucas
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTISTAGE PUMP BODY AND MULTISTAGE GAS PUMP
    • Publication number 20220127962
    • Publication date Apr 28, 2022
    • ATELIERS BUSCH SA
    • Théodore Iltchev
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROUGH-VACUUM PUMP OF DRY TYPE
    • Publication number 20220120279
    • Publication date Apr 21, 2022
    • PFEIFFER VACUUM
    • Paul DECORDE
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    NON-LUBRICATED SYSTEM WITH ABRADABLE SEALING ELEMENT, CORRESPONDING...
    • Publication number 20220074413
    • Publication date Mar 10, 2022
    • ATLAS COPCO AIRPOWER, naamloze vennootschap
    • Karen Anna Leon MARIEN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMPING UNIT
    • Publication number 20210381509
    • Publication date Dec 9, 2021
    • PFEIFFER VACUUM
    • Serge BRANDOLIN
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POWER SAVING VACUUMING PUMP SYSTEM BASED ON COMPLETE-BEARING-SEALIN...
    • Publication number 20210372404
    • Publication date Dec 2, 2021
    • Raymond Zhou Shaw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POWER SAVING VACUUM MACHINE FOR IMPROVING VACUUM ABILITY OF CONDENS...
    • Publication number 20210301824
    • Publication date Sep 30, 2021
    • Raymond Zhou Shaw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DRY VACUUM PUMP AND METHOD FOR CONTROLLING A SYNCHRONOUS MOTOR OF A...
    • Publication number 20210277900
    • Publication date Sep 9, 2021
    • PFEIFFER VACUUM
    • Yannick GRENIER
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Application

    ROOTS ROTOR FOR REMOVING DUST COAGULUM AND DROPLETS
    • Publication number 20210108639
    • Publication date Apr 15, 2021
    • OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD.
    • Yi Rong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DRY-TYPE VACUUM PUMP
    • Publication number 20210108638
    • Publication date Apr 15, 2021
    • PFEIFFER VACUUM
    • Laurent SAXOD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VACUUM PUMP SYSTEM
    • Publication number 20210088049
    • Publication date Mar 25, 2021
    • Leybold GmbH
    • Robert Alois SCHNEIDERS
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A MULTI-STAGE VACUUM PUMP AND A METHOD OF DIFFERENTIALLY PUMPING MU...
    • Publication number 20210079914
    • Publication date Mar 18, 2021
    • Edwards Limited
    • Phillip North
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...