the inner and outer member being in contact along more than one line or surface

Patents Grantslast 30 patents

  • Information Patent Grant

    Quick startup device for centrifugal pump

    • Patent number 11,555,497
    • Issue date Jan 17, 2023
    • JIANGSU UNIVERSITY
    • Xiaowei Li
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pump with conveying chamber formed in outer rotor surface

    • Patent number RE47590
    • Issue date Sep 3, 2019
    • Quantex Patents Limited
    • Richard P. Hayes-Pankhurst
  • Information Patent Grant

    Hydraulic pump having a cylindrical roller within a housing having...

    • Patent number 10,385,850
    • Issue date Aug 20, 2019
    • Goodrich Actuations Systems Limited
    • Robert A. Pawlik
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Pumps

    • Patent number 10,087,931
    • Issue date Oct 2, 2018
    • Quantex Patents Limited
    • Richard Paul Hayes-Pankhurst
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Concentric rotary fluid machine

    • Patent number 9,957,961
    • Issue date May 1, 2018
    • Greystone Technologies Pty Ltd
    • Nicholas Ryan Marchand
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary fluid machine and associated method of operation

    • Patent number 9,394,902
    • Issue date Jul 19, 2016
    • Greystone Technologies Pty Ltd
    • Daryl Wheeler
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary fluid machine operable as a motor or a pump

    • Patent number 9,334,736
    • Issue date May 10, 2016
    • Greystone Technologies Pty Ltd
    • Daryl Wheeler
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multistage vane pump

    • Patent number 9,297,380
    • Issue date Mar 29, 2016
    • JOINT STOCK COMPANY “NOVOMET-PERM”
    • Ilya Nikolaevich Zubenin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Abutment rotary pump with repelling magnets

    • Patent number 9,175,684
    • Issue date Nov 3, 2015
    • John McIntyre
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary pump with a vane provided in each pump outlet

    • Patent number 8,985,982
    • Issue date Mar 24, 2015
    • 1564330 Ontario Inc.
    • Albert W. Patterson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Wear-resistant coating and process for producing it

    • Patent number 7,824,733
    • Issue date Nov 2, 2010
    • Schaeffler KG
    • Tim Matthias Hosenfeldt
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Pump with conveying chamber formed in outer rotor surface

    • Patent number 7,674,100
    • Issue date Mar 9, 2010
    • PDD Innovations Ltd.
    • Richard P. Hayes-Pankhurst
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary pump

    • Patent number 6,619,939
    • Issue date Sep 16, 2003
    • Takuma Co., LTD
    • Umeo Inoue
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary machine

    • Patent number 6,468,061
    • Issue date Oct 22, 2002
    • Merlin Corporation Pty Ltd.
    • Benjamin Francis Dyktynski
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Rotary machine

    • Patent number 6,280,169
    • Issue date Aug 28, 2001
    • Merlin Corporation PTY LTD
    • Benjamin Francis Dyktynski
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Hydraulic conveying device

    • Patent number 6,168,401
    • Issue date Jan 2, 2001
    • Luk Automobiltechnik GmbH & Co. KG
    • Kai Schenck
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Blocking-vane pump

    • Patent number 5,989,002
    • Issue date Nov 23, 1999
    • Luk Fahrzeug-Hydraulik GmbH
    • Thomas Nied-Menninger
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Wellbore motor system

    • Patent number 5,785,509
    • Issue date Jul 28, 1998
    • Gary L. Harris
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rotary piston pump having synchrously driven dividing slides and do...

    • Patent number 5,580,227
    • Issue date Dec 3, 1996
    • Hans R. Rappenhoner
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Downhole motor system

    • Patent number 5,518,379
    • Issue date May 21, 1996
    • Gary L. Harris
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Synchronized hydraulic rotary converter and distributor device

    • Patent number 4,373,878
    • Issue date Feb 15, 1983
    • Gaston Sauvaget
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Torque-amplifying hydraulic servo-mechanism, particularly for power...

    • Patent number 4,204,817
    • Issue date May 27, 1980
    • Societe Anonyme DBA
    • Gilbert Kervagoret
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3718411

    • Patent number 3,718,411
    • Issue date Feb 27, 1973
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3314368

    • Patent number 3,314,368
    • Issue date Apr 18, 1967
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3302527

    • Patent number 3,302,527
    • Issue date Feb 7, 1967
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3276386

    • Patent number 3,276,386
    • Issue date Oct 4, 1966
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    3216362

    • Patent number 3,216,362
    • Issue date Nov 9, 1965
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3178769

    • Patent number 3,178,769
    • Issue date Apr 20, 1965
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3166017

    • Patent number 3,166,017
    • Issue date Jan 19, 1965
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3128708

    • Patent number 3,128,708
    • Issue date Apr 14, 1964
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTISTAGE VANE PUMP

    • Publication number 20150167668
    • Publication date Jun 18, 2015
    • CLOSED JOINT STOCK COMPANY "NOVOMET-PERM"
    • Ilya Nikolaevich Zubenin
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY FLUID MACHINE

    • Publication number 20140140880
    • Publication date May 22, 2014
    • Greystone Technologies Pty Ltd
    • Daryl Wheeler
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ROTARY PUMP WITH A VANE PROVIDED IN EACH PUMP OUTLET

    • Publication number 20130259730
    • Publication date Oct 3, 2013
    • Albert W. Patterson
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Wear-resistant coating and process for producing it

    • Publication number 20080282836
    • Publication date Nov 20, 2008
    • Schaeffler KG
    • Tim Matthias Hosenfeldt
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Wear-resistant coating and process for producing it

    • Publication number 20070059529
    • Publication date Mar 15, 2007
    • Tim Matthias Hosenfeldt
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Pumps

    • Publication number 20060051228
    • Publication date Mar 9, 2006
    • Richard P. Hayes-Pankhurst
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Application

    Impeller pump with reciprocating vane and non-circular rotor

    • Publication number 20050254968
    • Publication date Nov 17, 2005
    • Albert W. Patterson
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    Rotary pump

    • Publication number 20030072667
    • Publication date Apr 17, 2003
    • Umeo Inoue
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Rotary machine

    • Publication number 20010046448
    • Publication date Nov 29, 2001
    • MERLIN CORPORATION PTY. LTD.
    • Benjamin Francis Dyktynski
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...