TREA

Harry Rosenberg

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  • Ludinghausen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Roof supports
    • Patent number 4,815,898
    • Issue date Mar 28, 1989
    • Gewerkschaft Eisenhutte Westfalia GmbH
    • Egon Wojaczek
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Multi-part roof-contacting structures of mine roof supports
    • Patent number 4,755,084
    • Issue date Jul 5, 1988
    • Gewerkschaft Eisenhutte Westfalia GmbH
    • Bernd Peters
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine roof support unit
    • Patent number 4,600,340
    • Issue date Jul 15, 1986
    • Gewerkschaft Eisenhutte Westfalia
    • Harry Rosenberg
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Control systems for mineral mining installations
    • Patent number 4,451,181
    • Issue date May 29, 1984
    • Gewerkschaft Eisenhutte Westfalia
    • Thomas Trumper
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mineral mining installation
    • Patent number 4,449,859
    • Issue date May 22, 1984
    • Gewerkschaft Eisenhutte Westfalia
    • Gunter Terhorst
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mineral mining installation
    • Patent number 4,427,321
    • Issue date Jan 24, 1984
    • Gewerkschaft Eisenhutte Westfalia
    • Walter Weirich
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic control systems for mining apparatus
    • Patent number 4,391,181
    • Issue date Jul 5, 1983
    • Gewerkschaft Eisenhutte Westfalia
    • Walter Weirich
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Devices for limiting the stroke of a hydraulic ram used in mining a...
    • Patent number 4,379,424
    • Issue date Apr 12, 1983
    • Gewerkschaft Eisenhutte Westfalia
    • Harry Rosenberg
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Control unit for an electro-hydraulic roof support control arrangement
    • Patent number 4,378,027
    • Issue date Mar 29, 1983
    • Gewerkschaft Eisenhutte Westfalia
    • Walter Weirich
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mineral mining installation
    • Patent number 4,307,981
    • Issue date Dec 29, 1981
    • Gewerkschaft Eisenhutte Westfalia
    • Walter Weirich
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic control means
    • Patent number 4,306,822
    • Issue date Dec 22, 1981
    • Gewerkschaft Eisenhutte Westfalia
    • Walter Weirich
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Seals for mine roof supports
    • Patent number 4,293,247
    • Issue date Oct 6, 1981
    • Gewerkschaft Eisenhutte Westfalia
    • Harry Rosenberg
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Roof support unit
    • Patent number 4,231,685
    • Issue date Nov 4, 1980
    • Gewerkschaft Eisenhutte Westfalia
    • Harry Rosenberg
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine roof support assembly
    • Patent number 4,217,067
    • Issue date Aug 12, 1980
    • Gewerkschaft Eisenhutte Westfalia
    • Gunter Lagodka
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic roof support control system
    • Patent number 4,191,498
    • Issue date Mar 4, 1980
    • Gewerkschaft Eisenhutte Westfalia
    • Walter Weirich
    • E21 - EARTH DRILLING MINING