TREA

Raising shafts

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Industry

  • CPC
  • E21D3/00
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS

Current Industry

E21D3/00Raising shafts
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for the bottom-up construction of vertical ris...
    • Patent number 11,441,423
    • Issue date Sep 13, 2022
    • WEBUILD S.P.A.
    • Nicola Valiante
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Battery powered mechanized raise climbing system
    • Patent number 8,362,721
    • Issue date Jan 29, 2013
    • J. S. Redpath Limited
    • Rick T. Jylha
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Side shift raise climbing system
    • Patent number 7,987,794
    • Issue date Aug 2, 2011
    • J. S. Redpath Limited
    • Randy E. Grenon
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Easily-cuttable tunnel segment structure
    • Patent number 7,004,679
    • Issue date Feb 28, 2006
    • Nippon Steel Corporation
    • Ryoichi Naka
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cutter structure for shield machine
    • Patent number 6,915,864
    • Issue date Jul 12, 2005
    • Ishikawajima-Harima Heavy Industries Co., Ltd.
    • Hiroyuki Itou
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Earth discharging device for upward-facing shield machine
    • Patent number 6,698,844
    • Issue date Mar 2, 2004
    • Taisei Corporation
    • Hiroyuki Itou
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Ore pass inspection system
    • Patent number 6,672,673
    • Issue date Jan 6, 2004
    • The United States of America as represented by the Department of Health and H...
    • Arthur L. Miller
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Inflatable gripper assembly for rock boring machine
    • Patent number 5,649,745
    • Issue date Jul 22, 1997
    • Atlas Copco Robbins Inc.
    • Llewellan Anderson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for driving an upwardly directed shaft in rock
    • Patent number 4,986,374
    • Issue date Jan 22, 1991
    • Gruvprodukter I Gallivare AB
    • Ingemar Niemi
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Equipment for raise mining
    • Patent number 4,960,175
    • Issue date Oct 2, 1990
    • Alimak AB
    • Roland Granskog
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for producing an upwardly directed drill hole
    • Patent number 4,474,253
    • Issue date Oct 2, 1984
    • Wirth Maschinen-und Bohrgerate-Fabrik GmbH
    • Nikolaus Kleuters
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for tunneling upwardly
    • Patent number 4,114,698
    • Issue date Sep 19, 1978
    • Smith International, Inc.
    • Daniel R. Webb
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Foldable platform for raise drilling
    • Patent number 4,095,670
    • Issue date Jun 20, 1978
    • Raise Contracting, Limited
    • Angus C. H. Martin
    • E04 - BUILDING
  • Information Patent Grant

    Upward tunneling
    • Patent number 4,009,909
    • Issue date Mar 1, 1977
    • The Robbins Company
    • Richard J. Robbins
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for establishing the drilling line of an overh...
    • Patent number 3,999,616
    • Issue date Dec 28, 1976
    • The Robbins Company
    • Clayton H. Crane
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3905430
    • Patent number 3,905,430
    • Issue date Sep 16, 1975
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3840272
    • Patent number 3,840,272
    • Issue date Oct 8, 1974
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3604754
    • Patent number 3,604,754
    • Issue date Sep 14, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3378106
    • Patent number 3,378,106
    • Issue date Apr 16, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3141521
    • Patent number 3,141,521
    • Issue date Jul 21, 1964
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3085794
    • Patent number 3,085,794
    • Issue date Apr 16, 1963
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3016989
    • Patent number 3,016,989
    • Issue date Jan 16, 1962
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2942863
    • Patent number 2,942,863
    • Issue date Jun 28, 1960
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2903252
    • Patent number 2,903,252
    • Issue date Sep 8, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2855188
    • Patent number 2,855,188
    • Issue date Oct 7, 1958
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1731576
    • Patent number 1,731,576
    • Issue date Oct 15, 1929
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1631369
    • Patent number 1,631,369
    • Issue date Jun 7, 1927
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents