TREA

with a movable support arm carrying cutting tools for attacking the front face

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  • CPC
  • E21D9/0875
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D9/00Tunnels or galleries, with or without linings Methods or apparatus for making thereof Layout of tunnels or galleries

Current Industry

E21D9/0875with a movable support arm carrying cutting tools for attacking the front face
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Cutting assembly for a mining machine
    • Patent number 11,846,189
    • Issue date Dec 19, 2023
    • Sandvik Mining and Construction G.m.b.H.
    • Friedrich Pucher
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hard rock roadway and tunnel boring machine with actively rotating...
    • Patent number 11,199,092
    • Issue date Dec 14, 2021
    • China University of Mining and Technology
    • Hongxiang Jiang
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shield advancing machine
    • Patent number 4,805,963
    • Issue date Feb 21, 1989
    • Voest-Alpine Aktiengesellschaft
    • Peter Kogler
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cutting appliances for use in tunnel driving operations
    • Patent number 4,556,256
    • Issue date Dec 3, 1985
    • Gewerkschaft Eisenhutte Westfalia
    • Hans G. Follert
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Machine for making underground galleries
    • Patent number 4,508,390
    • Issue date Apr 2, 1985
    • Foncages et Forages Bessac, S.A.
    • Michel Bessac
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel excavator
    • Patent number 4,387,928
    • Issue date Jun 14, 1983
    • Milwaukee Boiler Manufacturing Co.
    • Richard W. Stevens
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Driving shield
    • Patent number 4,368,924
    • Issue date Jan 18, 1983
    • Ed. Zublin Aktiengesellschaft
    • Manfred Nussbaumer
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel boring machine
    • Patent number 4,349,230
    • Issue date Sep 14, 1982
    • Zokor Corporation
    • Herman Hamburger
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Shield for tunneling and mining
    • Patent number 4,332,508
    • Issue date Jun 1, 1982
    • Philipp Holzmann Aktiengesellschaft
    • Wilfried Krabbe
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Slideway means and excavating machines comprising slideway means
    • Patent number 4,303,275
    • Issue date Dec 1, 1981
    • Coal Industry (Patents) Limited
    • Francis A. Haskew
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cutter unit assemblies for excavating machines and to excavating ma...
    • Patent number 4,302,054
    • Issue date Nov 24, 1981
    • Coal Industry (Patents) Limited
    • Francis A. Haskew
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shield assemblies for installation in under-ground roadways and roc...
    • Patent number 4,289,356
    • Issue date Sep 15, 1981
    • Coal Industry (Patents) Limited
    • Terence R. Howard
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Conveyor mounted excavator
    • Patent number 4,283,090
    • Issue date Aug 11, 1981
    • The Robbins Company
    • Tyman H. Fikse
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel driving apparatus with cutter arms internal and external of...
    • Patent number 4,248,481
    • Issue date Feb 3, 1981
    • Gewerkschaft Eisenhutte Westfalia
    • Wilhelm Stoltefuss
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Articulated boom-dipper-bucket assembly for a tunnel boring machine
    • Patent number 4,203,626
    • Issue date May 20, 1980
    • Zokor Corporation
    • Herman Hamburger
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Excavator for use in a tunneling shield
    • Patent number 4,190,294
    • Issue date Feb 26, 1980
    • The Robbins Company
    • Tyman H. Fikse
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for use in mining or tunnelling installations
    • Patent number 4,055,959
    • Issue date Nov 1, 1977
    • Gewerkschaft Eisenhutte Westfalia
    • Giselher Fritz
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunneling equipment
    • Patent number 3,966,256
    • Issue date Jun 29, 1976
    • The Robbins Company
    • Tyman H. Fikse
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3922016
    • Patent number 3,922,016
    • Issue date Nov 25, 1975
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3656810
    • Patent number 3,656,810
    • Issue date Apr 18, 1972
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3613383
    • Patent number 3,613,383
    • Issue date Oct 19, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3612609
    • Patent number 3,612,609
    • Issue date Oct 12, 1971
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    3578809
    • Patent number 3,578,809
    • Issue date May 18, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3558193
    • Patent number 3,558,193
    • Issue date Jan 26, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3556599
    • Patent number 3,556,599
    • Issue date Jan 19, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3404920
    • Patent number 3,404,920
    • Issue date Oct 8, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2213684
    • Patent number 2,213,684
    • Issue date Sep 3, 1940
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    CUTTING ASSEMBLY FOR A MINING MACHINE
    • Publication number 20230048925
    • Publication date Feb 16, 2023
    • Sandvik Mining and Construction G.m.b.H.
    • Friedrich PUCHER
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    TUNNEL EXCAVATION DEVICE
    • Publication number 20140327292
    • Publication date Nov 6, 2014
    • KOREA RAILROAD RESEARCH INSTITUTE
    • Dong Hyeon Kim
    • E21 - EARTH DRILLING MINING