TREA

with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor

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Industry

  • CPC
  • F04C2/123
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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

F04C2/123with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary positive displacement pump
    • Patent number 12,060,882
    • Issue date Aug 13, 2024
    • Alfa Laval Corporate AB
    • Simon Cargill
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw spindle pump
    • Patent number 11,828,287
    • Issue date Nov 28, 2023
    • LEISTRITZ PUMPEN GMBH
    • Jürgen Metz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gear pump bearing with hybrid pad shutoff
    • Patent number 11,143,183
    • Issue date Oct 12, 2021
    • Hamilton Sundstrand Corporation
    • Timothy J. Franckowiak
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary piston engine and method for operating a rotary piston engine
    • Patent number 11,098,587
    • Issue date Aug 24, 2021
    • Fuelsave GmbH
    • Dirk Hoffmann
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Automatic pump control
    • Patent number 11,015,420
    • Issue date May 25, 2021
    • Baker Hughes Holdings LLC
    • Rawshan Monier Abdeldaim
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Gear pump bearings
    • Patent number 10,858,939
    • Issue date Dec 8, 2020
    • Hamilton Sundstrand Corporation
    • Edward W. Goy
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Metering pump made of plastic
    • Patent number 10,060,431
    • Issue date Aug 28, 2018
    • Robert Bosch GmbH
    • Dan Barron
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multiple segment lobe pump
    • Patent number 9,752,571
    • Issue date Sep 5, 2017
    • Brian J. O'Connor
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Positive displacement gear pump
    • Patent number 9,752,580
    • Issue date Sep 5, 2017
    • G.P.S. GREEN POWER SOLUTION SA
    • Franco Tommasini
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Self-priming positive displacement constant flow high capacity pump
    • Patent number 9,581,155
    • Issue date Feb 28, 2017
    • Richard Hibbard
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Piston with replaceable and/or adjustable surfaces
    • Patent number 9,383,013
    • Issue date Jul 5, 2016
    • LOBEPRO, INC.
    • Rolando Nico M. Ramos
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston with replaceable and/or adjustable surfaces
    • Patent number 9,303,641
    • Issue date Apr 5, 2016
    • LOBEPRO, INC.
    • Lee Hilpert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Positive displacement pump with improved sealing arrangement and re...
    • Patent number 9,273,555
    • Issue date Mar 1, 2016
    • Ampco Pumps Company
    • Bob Garner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Positive displacement pump with improved rotor design
    • Patent number 9,017,052
    • Issue date Apr 28, 2015
    • Harry Soderstrom
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Dual rotor pump
    • Patent number 8,647,089
    • Issue date Feb 11, 2014
    • Edward L. Simonds
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw rotor
    • Patent number 8,556,607
    • Issue date Oct 15, 2013
    • Kabushiki Kaisha Toyota Jidoshokki
    • Yuya Izawa
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Positive displacement pump with improved rotor design
    • Patent number 8,087,914
    • Issue date Jan 3, 2012
    • Harry Soderstrom
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Positive displacement pump apparatus and method
    • Patent number 8,007,264
    • Issue date Aug 30, 2011
    • SPX Corporation
    • Van Norman J. Drew
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gear and a fluid machine with a pair of gears
    • Patent number 6,709,250
    • Issue date Mar 23, 2004
    • Wei Xiong
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multi-chamber positive displacement fluid device
    • Patent number 6,666,666
    • Issue date Dec 23, 2003
    • Denis Gilbert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Replaceable seal having a friction fit
    • Patent number 6,254,366
    • Issue date Jul 3, 2001
    • Dosmatic USA, Inc.
    • Frank A. Walton
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Timed element, high pressure, industrial rotary lobe pump
    • Patent number 6,095,781
    • Issue date Aug 1, 2000
    • Viking Pump, Inc.
    • John Edwin Petersen
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Self-driving fluid pump
    • Patent number 5,755,566
    • Issue date May 26, 1998
    • Kalish Canada Inc.
    • Julio Marsillo
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Roots type supercharger
    • Patent number 5,180,299
    • Issue date Jan 19, 1993
    • Feuling Engineering, Inc.
    • James J. Feuling
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Adjustable wearplates rotary pump
    • Patent number 4,940,394
    • Issue date Jul 10, 1990
    • Baker Hughes, Inc.
    • Gordon H. Gibbons
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3602617
    • Patent number 3,602,617
    • Issue date Aug 31, 1971
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3575535
    • Patent number 3,575,535
    • Issue date Apr 20, 1971
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3191540
    • Patent number 3,191,540
    • Issue date Jun 29, 1965
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3106166
    • Patent number 3,106,166
    • Issue date Oct 8, 1963
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3001481
    • Patent number 3,001,481
    • Issue date Sep 26, 1961
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRONIC POSITIVE DISPLACEMENT FLUID PUMP WITH MOTOR COOLING AND...
    • Publication number 20240328415
    • Publication date Oct 3, 2024
    • DELPHI TECHNOLOGIES IP LIMITED
    • Alejandro Moreno
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SCREW SPINDLE PUMP
    • Publication number 20230184246
    • Publication date Jun 15, 2023
    • LEISTRITZ PUMPEN GMBH
    • Jürgen METZ
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    A ROTARY POSITIVE DISPLACEMENT PUMP
    • Publication number 20230138342
    • Publication date May 4, 2023
    • Alfa Laval Corporate AB
    • Simon CARGILL
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTOR AND PUMP
    • Publication number 20220243727
    • Publication date Aug 4, 2022
    • HAARSLEV INDUSTRIES A/S
    • Anders Svehag
    • A22 - BUTCHERING MEAT TREATMENT PROCESSING POULTRY OR FISH
  • Information Patent Application

    GEAR PUMP AND GEAR MOTOR
    • Publication number 20210079917
    • Publication date Mar 18, 2021
    • Shimadzu Corporation
    • Kazuma Murata
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GEAR PUMP BEARING WITH HYBRID PAD SHUTOFF
    • Publication number 20200309123
    • Publication date Oct 1, 2020
    • HAMILTON SUNDSTRAND CORPORATION
    • Timothy J. Franckowiak
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Automatic Pump Control
    • Publication number 20200240248
    • Publication date Jul 30, 2020
    • BAKER HUGHES, A GE COMPANY, LLC
    • Rawshan Monier Abdeldaim
    • G01 - MEASURING TESTING
  • Information Patent Application

    PUMP ASSEMBLY HAVING TWO PUMPS PROVIDED IN A SINGLE HOUSING
    • Publication number 20200208629
    • Publication date Jul 2, 2020
    • Stackpole International Engineered Products, Ltd.
    • Ralph VALKENBERG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    GEAR PUMP BEARINGS
    • Publication number 20200024947
    • Publication date Jan 23, 2020
    • HAMILTON SUNDSTRAND CORPORATION
    • Edward W. Goy
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    POSITIVE DISPLACEMENT GEAR PUMP
    • Publication number 20160047377
    • Publication date Feb 18, 2016
    • G.P.S. GREEN POWER SOLUTION SA
    • Franco TOMMASINI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotary Piston
    • Publication number 20140360359
    • Publication date Dec 11, 2014
    • Liessel Roland
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON WITH REPLACEABLE AND/OR ADJUSTABLE SURFACES
    • Publication number 20140331856
    • Publication date Nov 13, 2014
    • Rolando Nico M. Ramos
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON WITH REPLACEABLE AND/OR ADJUSTABLE SURFACES
    • Publication number 20140271312
    • Publication date Sep 18, 2014
    • Lee Hilpert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PUMP
    • Publication number 20140161655
    • Publication date Jun 12, 2014
    • Edward L. SIMONDS
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Positive Displacement Pump With Improved Sealing Arrangement and Re...
    • Publication number 20140065002
    • Publication date Mar 6, 2014
    • AMPCO PUMPS COMPANY
    • Bob Garner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    DUAL ROTOR PUMP
    • Publication number 20130011292
    • Publication date Jan 10, 2013
    • Edward L. Simonds
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PERIPHERAL PUMP-TURBINE
    • Publication number 20120207637
    • Publication date Aug 16, 2012
    • Jose Pozo Fernandez
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    DEVICE WITH ROTARY PISTONS THAT CAN BE USED AS A COMPRESSOR, A PUMP...
    • Publication number 20110027118
    • Publication date Feb 3, 2011
    • Zivoslav Milovanovic
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SCREW ROTOR
    • Publication number 20110020162
    • Publication date Jan 27, 2011
    • Kabushiki Kaisha Toyota Jidoshokki
    • Yuya IZAWA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Positive displacement pump apparatus and method
    • Publication number 20080069707
    • Publication date Mar 20, 2008
    • SPX Corporation
    • Drew Van Norman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Self-priming positive displacement constant flow high capacity pump
    • Publication number 20060083638
    • Publication date Apr 20, 2006
    • Richard Hibbard
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Pump
    • Publication number 20050095160
    • Publication date May 5, 2005
    • Heng-I Lin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MULTI-CHAMBER POSITIVE DISPLACEMENT FLUID DEVICE
    • Publication number 20030223896
    • Publication date Dec 4, 2003
    • Denis Gilbert
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...