with toothed rotary pistons

Patents Grantslast 30 patents

  • Information Patent Grant

    Device for conveying a medium

    • Patent number 11,313,366
    • Issue date Apr 26, 2022
    • ITT Bornemann GmbH
    • Jens-Uwe Brandt
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gear pump or motor with features for determining if assembled corre...

    • Patent number 10,975,863
    • Issue date Apr 13, 2021
    • Shimadzu Corporation
    • Kenichi Kanatani
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Oil-free screw compressor coated with a base resin, a solid lubrica...

    • Patent number 9,944,880
    • Issue date Apr 17, 2018
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko Ikeda
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Energy transforming unit and energy transforming system comprising...

    • Patent number 9,879,648
    • Issue date Jan 30, 2018
    • CorPower Ocean AB
    • Stig Lundback
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Energy transforming unit and energy transforming system comprising...

    • Patent number 9,441,484
    • Issue date Sep 13, 2016
    • CorPower Ocean AB
    • Stig Lundback
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Screw compressor

    • Patent number 8,801,412
    • Issue date Aug 12, 2014
    • Hitachi Industrial Equipment Systems Co., Ltd.
    • Yukiko Ikeda
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Grant

    Generator using gravitational and geothermal energy

    • Patent number 8,291,722
    • Issue date Oct 23, 2012
    • Jerome R. Lurtz
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Rotary internal combustion engine

    • Patent number 6,814,045
    • Issue date Nov 9, 2004
    • Roy Masters
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Microfabricated microengine with constant rotation rate

    • Patent number 5,955,801
    • Issue date Sep 21, 1999
    • Sandia Corporation
    • Louis A. Romero
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary positive displacement machine

    • Patent number 4,702,206
    • Issue date Oct 27, 1987
    • John Harries
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gear machine operable as pump or motor with axially spaced and circ...

    • Patent number 4,277,230
    • Issue date Jul 7, 1981
    • Robert Bosch GmbH
    • Karl-Heinz Muller
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Epicyclic gear system and driving means therefor

    • Patent number 4,229,152
    • Issue date Oct 21, 1980
    • Charles K. Wojcik
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gear-type positive-displacement machine

    • Patent number 4,138,206
    • Issue date Feb 6, 1979
    • Vladimir D. Zinevich
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary engines, compressors and vacuum pumps

    • Patent number 4,007,715
    • Issue date Feb 15, 1977
    • Fairey Norbon Pty. Ltd.
    • Robert Peter Bonnell
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3917437

    • Patent number 3,917,437
    • Issue date Nov 4, 1975
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3728050

    • Patent number 3,728,050
    • Issue date Apr 17, 1973
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3699930

    • Patent number 3,699,930
    • Issue date Oct 24, 1972
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3174274

    • Patent number 3,174,274
    • Issue date Mar 23, 1965
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    3071078

    • Patent number 3,071,078
    • Issue date Jan 1, 1963
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    2240874

    • Patent number 2,240,874
    • Issue date May 6, 1941
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    1909418

    • Patent number 1,909,418
    • Issue date May 16, 1933
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

  • Information Patent Application

    GEAR PUMP OR MOTOR

    • Publication number 20200232326
    • Publication date Jul 23, 2020
    • Shimadzu Corporation
    • Kenichi KANATANI
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    MALFUNCTION DIAGNOSIS APPARATUS FOR GEAR MOTOR

    • Publication number 20170284201
    • Publication date Oct 5, 2017
    • Sumitomo Heavy Industries, Ltd.
    • Kota Suzuki
    • G01 - MEASURING TESTING
  • Information Patent Application

    SEALING SLEEVE FOR GEARED SHAFT OF GEARMOTOR ASSEMBLY

    • Publication number 20170114640
    • Publication date Apr 27, 2017
    • Nidec Motor Corporation
    • Joshua M. Biro
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    INTERNAL BEARING PLATE FOR GEARMOTOR ASSEMBLY

    • Publication number 20170114641
    • Publication date Apr 27, 2017
    • Nidec Motor Corporation
    • Daniel E. Hilton
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Friction-free Rotary Piston Scissor Action Motor / Hot Air Energy G...

    • Publication number 20160363113
    • Publication date Dec 15, 2016
    • Zheng Huang
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Application

    POSITIVE DISPLACEMENT ROTARY DEVICES

    • Publication number 20150167464
    • Publication date Jun 18, 2015
    • MALLEN RESEARCH LIMITED PARTNERSHIP
    • David Alton MCDANIEL
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • Information Patent Application

    SCREW COMPRESSOR

    • Publication number 20140322058
    • Publication date Oct 30, 2014
    • Yukiko IKEDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Energy Transforming Unit and Energy Transforming System Comprising...

    • Publication number 20130236347
    • Publication date Sep 12, 2013
    • Corpower Ocean AB
    • Stig Lundback
    • F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
  • 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

    SCREW COMPRESSOR

    • Publication number 20120100029
    • Publication date Apr 26, 2012
    • Yukiko IKEDA
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    GENERATOR USING GRAVITATIONAL AND GEOTHERMAL ENERGY

    • Publication number 20090229787
    • Publication date Sep 17, 2009
    • Jerome Lurtz
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Non-eccentric devices

    • Publication number 20060120910
    • Publication date Jun 8, 2006
    • Jerome R. Lurtz
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Reversible volumetric machine

    • Publication number 20030219336
    • Publication date Nov 27, 2003
    • Tullio Gonzaga
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Non-eccentric devices

    • Publication number 20030215346
    • Publication date Nov 20, 2003
    • Jerome R. Lurtz
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Rotary internal combustion engine

    • Publication number 20030101962
    • Publication date Jun 5, 2003
    • Roy Masters
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES