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Concentric Pumps Limited

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  • Birmingham, GB
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Pumps
    • Patent number 6,402,461
    • Issue date Jun 11, 2002
    • Concentric Pumps Limited
    • Stephen Walker Tebby
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Drive systems
    • Patent number 5,782,083
    • Issue date Jul 21, 1998
    • Concentric Pumps Limited
    • Stephen Mark Hodge
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compact gerotor pump
    • Patent number 5,554,019
    • Issue date Sep 10, 1996
    • Concentric Pumps Limited
    • Steve Hodge
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gerotor pump with shiftable rotor boss
    • Patent number 5,334,002
    • Issue date Aug 2, 1994
    • Concentric Pumps Limited
    • Steve Hodge
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Engine driven oil pump
    • Patent number 5,271,723
    • Issue date Dec 21, 1993
    • Concentric Pumps Limited
    • Steve Hodge
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gerotor pump with interference fit closure
    • Patent number 5,261,803
    • Issue date Nov 16, 1993
    • Concentric Pumps Limited
    • Richard R. Freeman
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Coolant pump for an internal combustion engine
    • Patent number 5,226,787
    • Issue date Jul 13, 1993
    • Concentric Pumps Limited
    • Richard R. Freeman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gerotor pump having spiral lobes
    • Patent number 5,195,882
    • Issue date Mar 23, 1993
    • Concentric Pumps Limited
    • Richard R. Freeman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Internal combustion engine oil pump with cover
    • Patent number 5,152,264
    • Issue date Oct 6, 1992
    • Concentric Pumps Limited
    • Paul G. Evans
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Gerotor pump with blind-end groove on each lobe of the annulus
    • Patent number 5,145,347
    • Issue date Sep 8, 1992
    • Concentric Pumps Limited
    • Richard R. Freeman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gerotor pump having axial fluid transfer passages through the lobes
    • Patent number 4,986,739
    • Issue date Jan 22, 1991
    • Concentric Pumps Limited
    • Robin E. Child
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Reversible geroter pump with pivoting carrier unidirectional flow
    • Patent number 4,944,662
    • Issue date Jul 31, 1990
    • Concentric Pumps Limited
    • Robin E. Child
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method of making pump impeller by lost-foam molding
    • Patent number 4,891,876
    • Issue date Jan 9, 1990
    • Concentric Pumps Limited
    • Richard R. Freeman
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Variable output oil pump
    • Patent number 4,887,956
    • Issue date Dec 19, 1989
    • Concentric Pumps Limited
    • Robin E. Child
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable output gerotor pump
    • Patent number 4,778,361
    • Issue date Oct 18, 1988
    • Concentric Pumps Limited
    • Robin E. Child
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Transmission coupling
    • Patent number 4,718,378
    • Issue date Jan 12, 1988
    • Concentric Pumps Limited
    • Robin E. Child
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Reversible unidirectional flow rotary pump
    • Patent number 4,588,362
    • Issue date May 13, 1986
    • Concentric Pumps Limited
    • Robin E. Child
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gerotor pump
    • Patent number 4,540,347
    • Issue date Sep 10, 1985
    • Concentric Pumps Limited
    • Robin E. Child
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    79123451 - CONCENTRIC
    • Serial number 79123451
    • Registration number 4557836
    • Filing date Oct 16, 2012
    • Concentric Pumps Plc
    • 7 - Machines and machine tools
  • Information Trademark

    79034716 - CONCENTRIC
    • Serial number 79034716
    • Registration number 3418549
    • Filing date Dec 15, 2006
    • Concentric Pumps Limited
    • 7 - Machines and machine tools