TREA

Accessories for making shaft linings

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Industry

  • CPC
  • E21D5/12
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D5/00Lining shafts Linings therefor

Current Industry

E21D5/12Accessories for making shaft linings
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Shuttering with supporting ring having expendable drawers
    • Patent number 11,512,591
    • Issue date Nov 29, 2022
    • REDPATH DEILMANN GmbH
    • Werner Siedentopf
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Anti-seismic support method for mine shaft
    • Patent number 11,428,101
    • Issue date Aug 30, 2022
    • CHINA COAL RESEARCH INSTITUTE
    • Qingjie Qi
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Underground support system and method
    • Patent number 11,092,010
    • Issue date Aug 17, 2021
    • DSI TUNNELING LLC
    • John M. Mulvoy
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of moving a component or a material to and within a level of...
    • Patent number 10,024,156
    • Issue date Jul 17, 2018
    • Technological Resources Pty. Limited
    • Rocky Lynn Webb
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Center-pillared full-face shaft drilling machine
    • Patent number 9,995,086
    • Issue date Jun 12, 2018
    • Hua Zhao
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Free-wheeling-resistant rolls for mining roof support and the combi...
    • Patent number 9,581,022
    • Issue date Feb 28, 2017
    • Tensar Corporation
    • John E. Steffenino
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Free-wheeling-resistant rolls for mining roof support and the combi...
    • Patent number 8,757,936
    • Issue date Jun 24, 2014
    • Tensar Corporation
    • John E. Steffenino
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Formwork apparatus
    • Patent number 5,417,519
    • Issue date May 23, 1995
    • Michiel Smuts
    • E04 - BUILDING
  • Information Patent Grant

    Apparatus and method for lining bore holes with pre-formed lining s...
    • Patent number 4,890,676
    • Issue date Jan 2, 1990
    • Caledonian Mining Co. Ltd.
    • Benjamin Mason
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Lining of bore holes
    • Patent number 4,887,546
    • Issue date Dec 19, 1989
    • Caledonian Mining Co. Ltd.
    • Benjamin Mason
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine shaft liner
    • Patent number 4,460,293
    • Issue date Jul 17, 1984
    • Santa Fe International Corporation
    • Paul Richardson
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Method of lining a vertical mine shaft with concrete
    • Patent number 4,270,876
    • Issue date Jun 2, 1981
    • The United States of America as represented by the United States Department o...
    • James D. Eklund
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for in situ lining of an upwardly open shaft with monolit...
    • Patent number 4,067,675
    • Issue date Jan 10, 1978
    • Raymond A. Hanson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Slipforming method and apparatus for in situ lining of an upwardly...
    • Patent number 4,031,708
    • Issue date Jun 28, 1977
    • Raymond A. Hanson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Technique for lining shaft
    • Patent number 3,958,637
    • Issue date May 25, 1976
    • The United States of America as represented by the Secretary of the Interior
    • James H. Cobbs
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3827244
    • Patent number 3,827,244
    • Issue date Aug 6, 1974
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3584465
    • Patent number 3,584,465
    • Issue date Jun 15, 1971
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    3544070
    • Patent number 3,544,070
    • Issue date Dec 1, 1970
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3401946
    • Patent number 3,401,946
    • Issue date Sep 17, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3074237
    • Patent number 3,074,237
    • Issue date Jan 22, 1963
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3036661
    • Patent number 3,036,661
    • Issue date May 29, 1962
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2879648
    • Patent number 2,879,648
    • Issue date Mar 31, 1959
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    2667750
    • Patent number 2,667,750
    • Issue date Feb 2, 1954
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2583498
    • Patent number 2,583,498
    • Issue date Jan 22, 1952
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1979896
    • Patent number 1,979,896
    • Issue date Nov 6, 1934
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1100622
    • Patent number 1,100,622
    • Issue date Jun 16, 1914
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1096795
    • Patent number 1,096,795
    • Issue date May 12, 1914
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1089573
    • Patent number 1,089,573
    • Issue date Mar 10, 1914
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1065369
    • Patent number 1,065,369
    • Issue date Jun 24, 1913
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1051076
    • Patent number 1,051,076
    • Issue date Jan 21, 1913
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents