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Karl Hotger

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  • Bochum, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for controlling the supply of high-pressure liquid to a c...
    • Patent number 4,565,410
    • Issue date Jan 21, 1986
    • Gebr. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
    • Karl Hotger
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    High-pressure ball valve
    • Patent number 4,541,607
    • Issue date Sep 17, 1985
    • Gebr. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
    • Karl Hotger
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Cutter drum assembly for longwall mining machines
    • Patent number 4,471,998
    • Issue date Sep 18, 1984
    • Gebr. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
    • Karl Hotger
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mechanical sealing means for rotary fluid coupling
    • Patent number 4,462,619
    • Issue date Jul 31, 1984
    • Gebr. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
    • Karl Hotger
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rotary fluid coupling
    • Patent number 4,449,738
    • Issue date May 22, 1984
    • Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei, m.b.H.
    • Karl Hotger
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Labyrinthine mechanical seal
    • Patent number 4,302,019
    • Issue date Nov 24, 1981
    • Eickhoff Maschinenfabrik und Eisengiesserei m.b.H
    • Karl Hotger
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...