TREA

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

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  • CPC
  • F04C2/126
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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 F04C2/00Rotary-piston machines or pumps

Current Industry

F04C2/126with 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

    PUMP FOR CONVEYING A FLUID
    • Publication number 20240060489
    • Publication date Feb 22, 2024
    • VOGELSANG GMBH & CO. KG
    • THOMAS HINNERS
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A ROTARY POSITIVE DISPLACEMENT PUMP
    • Publication number 20240052834
    • Publication date Feb 15, 2024
    • Alfa Laval Corporate AB
    • Simon CARGILL
    • 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

    POSITIVE DISPLACEMENT PUMP WITH PRESSURE RELIEF
    • Publication number 20230119471
    • Publication date Apr 20, 2023
    • Richard Wallace Hibbard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Split Power Gerotor Pump
    • Publication number 20220252066
    • Publication date Aug 11, 2022
    • SCHAEFFLER TECHNOLOGIES AG & CO. KG
    • Kyle DeHoff
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TRANSFER ASSEMBLY FOR ATTACHMENT TO A FRONT PORTION OF AN AGRICULTU...
    • Publication number 20220098025
    • Publication date Mar 31, 2022
    • Robb J. Vanderloop
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Application

    ROTARY PUMP WITH ROTOR BEARING RING
    • Publication number 20220065246
    • Publication date Mar 3, 2022
    • The Bricks Groupe, LLC
    • Carl Magnus Danielsson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY LOBE PUMP WITH INTERNAL BEARING
    • Publication number 20220025883
    • Publication date Jan 27, 2022
    • VOGELSANG GMBH & CO. KG
    • Paul Krampe
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HIGH PRESSURE PUMP
    • Publication number 20210372399
    • Publication date Dec 2, 2021
    • PMC LIQUIFLO EQUIPMENT CO., INC.
    • Yu-Sen J. Chu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROOTS PUMP
    • Publication number 20210340979
    • Publication date Nov 4, 2021
    • Kabushiki Kaisha Toyota Jidoshokki
    • Fumiya SHINODA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POSITIVE DISPLACEMENT PUMP WITH PRESSURE RELIEF
    • Publication number 20210332817
    • Publication date Oct 28, 2021
    • Richard Wallace Hibbard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LOW COEFFICIENT OF EXPANSION ROTORS FOR VACUUM BOOSTERS
    • Publication number 20210270265
    • Publication date Sep 2, 2021
    • GARDNER DENVER, INC.
    • Roger Clive Palmer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A METHOD OF OPERATING A FOUR STROKE INTERNAL COMBUSTION ENGINE SYSTEM
    • Publication number 20210131341
    • Publication date May 6, 2021
    • VOLVO TRUCK CORPORATION
    • Martin BAUER
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Method to determine the reasonable design area of rotor profile of...
    • Publication number 20210115918
    • Publication date Apr 22, 2021
    • JIANGNAN UNIVERSITY
    • Xueming HE
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    TRANSMISSION STRUCTURE OF MOTOR CONNECTION OF ROOTS PUMP
    • Publication number 20210088121
    • Publication date Mar 25, 2021
    • OVG VACUUM TECHNOLOGY (SHANGHAI) CO., LTD.
    • Yi Rong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    TWIN ROTOR DEVICES WITH INTERNAL CLEARANCES REDUCED BY A COATING AF...
    • Publication number 20200116148
    • Publication date Apr 16, 2020
    • Eaton Intelligent Power Limited
    • Matthew Gareld SWARTZLANDER
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Positive Displacement Pump With Shaft-Mounted Sleeve
    • Publication number 20200032790
    • Publication date Jan 30, 2020
    • AMPCO PUMPS COMPANY
    • Bob Garner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MOTOR-DRIVEN ROOTS PUMP
    • Publication number 20190226480
    • Publication date Jul 25, 2019
    • Kabushiki Kaisha Toyota Jidoshokki
    • Takayuki HIRANO
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HOLLOW ROTOR LOBE AND CONTROL OF TIP DEFLECTION
    • Publication number 20190203708
    • Publication date Jul 4, 2019
    • Eaton Intelligent Power Limited
    • Andrew S. Meyers
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SIMPLIFIED ROOTS-TYPE BLOWER
    • Publication number 20190136859
    • Publication date May 9, 2019
    • Eaton Intelligent Power Limited
    • William Nicholas EYBERGEN
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    PISTON FOR A ROTARY PISTON PUMP
    • Publication number 20190048872
    • Publication date Feb 14, 2019
    • HUGO VOGELSANG MASCHINENBAU GMBH
    • Thomas Hinners
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP FOR DISPENSING LIQUID OR SEMI-LIQUID OR SEMI-SOLID FOOD PRODUC...
    • Publication number 20180274537
    • Publication date Sep 27, 2018
    • ALI GROUP S.r.l.
    • Andrea COCCHI
    • A23 - FOODS OR FOODSTUFFS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
  • Information Patent Application

    Positive displacement pump with pressure relief
    • Publication number 20180245585
    • Publication date Aug 30, 2018
    • Richard Wallace Hibbard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Self-priming positive displacement pump with sectioned dividing wall
    • Publication number 20180245586
    • Publication date Aug 30, 2018
    • Richard Wallace Hibbard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    LOBE GEAR PUMP
    • Publication number 20180209418
    • Publication date Jul 26, 2018
    • Parker-Hannifin Corporation
    • Yu-Sen J. Chu
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    FLUID WORKING SYSTEMS
    • Publication number 20180135627
    • Publication date May 17, 2018
    • Danfoss Power Solutions GnbH & Co., OHG
    • Elliott Gruber
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    HIGH-VISCOSITY FIRE SUPPRESSANT DELIVERY SYSTEM USING AN INJECTION...
    • Publication number 20180126203
    • Publication date May 10, 2018
    • Patlon Aircraft and Industries Ltd.
    • Jamie Beluse
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    INTERNAL COMBUSTION ENGINE HAVING AT LEAST ONE CRANKCASE OF THE DRY...
    • Publication number 20180106170
    • Publication date Apr 19, 2018
    • AIRBUS HELICOPTERS
    • Pierre-Julien HUBERT
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Sintering a Multi-lobed Helical Rotor
    • Publication number 20180079005
    • Publication date Mar 22, 2018
    • Halliburton Energy Services, Inc.
    • Richard David Peer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotary Piston Pump, Method For Fixing Rotary Pistons Of A Rotary Pi...
    • Publication number 20170306949
    • Publication date Oct 26, 2017
    • NETZSCH Pumpen & Systeme GmbH
    • Stefan Weigl
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...