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Merz Johann

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  • Schwabisch Gmund, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Positive-displacement pump
    • Patent number 6,254,358
    • Issue date Jul 3, 2001
    • ZF Friedrichshafen AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Container
    • Patent number 6,179,157
    • Issue date Jan 30, 2001
    • ZF Friedrichshafen AG
    • Johann Merz
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Vane cell pump
    • Patent number 6,095,773
    • Issue date Aug 1, 2000
    • ZF Friedrichshafen AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Flat faced bearing housing engaging flat faced pump rotor housing
    • Patent number 6,033,190
    • Issue date Mar 7, 2000
    • ZF Friedrichshafen AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Displacement pump
    • Patent number 6,004,110
    • Issue date Dec 21, 1999
    • ZF Friedrichshafen AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Sliding vane pump using a drive shaft as a flow divider for enhance...
    • Patent number 5,800,135
    • Issue date Sep 1, 1998
    • ZF Friedrichshafen AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Hydraulically balanced vane cell pump
    • Patent number 5,795,142
    • Issue date Aug 18, 1998
    • ZF Friedrichshafen AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary vane-cell pump
    • Patent number 5,466,135
    • Issue date Nov 14, 1995
    • ZF Friedrichshafen AG
    • Gunter Draskovits
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Cover with locking device
    • Patent number 5,086,942
    • Issue date Feb 11, 1992
    • Zahndradfabrik Friedrichshafen, AG.
    • Johann Merz
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Vane cell pump having resilient sealing means biasing the pressure...
    • Patent number 4,772,190
    • Issue date Sep 20, 1988
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary vane type of pump with elongated damping chambers
    • Patent number 4,752,195
    • Issue date Jun 21, 1988
    • Zahnradfabrik Friedrichshafen, AG
    • Peter Friedrich
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Flow regulating rotary vane pump
    • Patent number 4,715,793
    • Issue date Dec 29, 1987
    • Zahnradfabrik Friedrichshafen, AG
    • Merz Johann
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Regulatable fan drive
    • Patent number 4,709,666
    • Issue date Dec 1, 1987
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Servo steering for vehicles
    • Patent number 4,676,333
    • Issue date Jun 30, 1987
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • Information Patent Grant

    High pressure pump with a flow control valve
    • Patent number 4,553,908
    • Issue date Nov 19, 1985
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Seal assembly with radially undulated sealing element
    • Patent number 4,516,784
    • Issue date May 14, 1985
    • Zahnradfabrik Friedrichshafen AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Gear pump
    • Patent number 4,443,169
    • Issue date Apr 17, 1984
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Controllable vane pump
    • Patent number 4,437,819
    • Issue date Mar 20, 1984
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Rotary vane pump with pressure biased flow directing end plate
    • Patent number 4,416,598
    • Issue date Nov 22, 1983
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Radial piston pump
    • Patent number 4,385,870
    • Issue date May 31, 1983
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Oil reservoir particularly for hydraulic steering system
    • Patent number 4,380,272
    • Issue date Apr 19, 1983
    • Zahnradfabrik Friedrichshafen AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Means for mutual positioning of members
    • Patent number 4,344,717
    • Issue date Aug 17, 1982
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Hydraulically operated steering system with pressure control
    • Patent number 4,310,289
    • Issue date Jan 12, 1982
    • Zahnradfabrik Friedrichshafen, AG
    • Johann Merz
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...