TREA

Hans Hrabal

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  • Vienna, AT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ring valve
    • Patent number 4,924,906
    • Issue date May 15, 1990
    • Hoerbiger Ventilwerke Aktiengesellschaf
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Screw compressor unit including a centrifugal clutch
    • Patent number 4,871,299
    • Issue date Oct 3, 1989
    • Hoerbiger Ventilwerke Aktiengesellschaft
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Adjustable compressor valve which can accommodate changing operatin...
    • Patent number 4,869,289
    • Issue date Sep 26, 1989
    • Hoerbiger Ventilwerke Aktiengesellschaft
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor plate valve
    • Patent number 4,869,291
    • Issue date Sep 26, 1989
    • Hoerbiger Ventilwerke Aktiengesellschaft
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Adjustable compressor valve which can accommodate changing operatin...
    • Patent number 4,799,507
    • Issue date Jan 24, 1989
    • Hoerbiger Ventilwerke Aktiengesellschaft
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Closing member for a ring valve
    • Patent number 4,231,394
    • Issue date Nov 4, 1980
    • Enfo Grundlagen Forschungs AG
    • Hans Hrabal
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Lamina valve for reciprocating compressors
    • Patent number 4,193,424
    • Issue date Mar 18, 1980
    • ENFO Grundlagen Forschungs AG
    • Hans Hrabal
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...