TREA

for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently

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  • CPC
  • E21D9/1053
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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

E21D9/1053for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Projectile augmented boring system
    • Patent number 12,049,825
    • Issue date Jul 30, 2024
    • Hypersciences, Inc.
    • Mark C. Russell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Wire saw excavation apparatus capable of changing cutting line in a...
    • Patent number 11,472,063
    • Issue date Oct 18, 2022
    • In Hwan Choi
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for wire saw excavation
    • Patent number 9,144,921
    • Issue date Sep 29, 2015
    • King Fahd University of Petroleum & Minerals
    • Jihad Hassan Alsadah
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Excavation system using a water jet, and excavation method using th...
    • Patent number 9,140,122
    • Issue date Sep 22, 2015
    • KAIST (Korea Advanced Institute of Science and Technology)
    • Gye-Chun Cho
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method for wire saw excavation
    • Patent number 9,068,454
    • Issue date Jun 30, 2015
    • King Fahd University of Petroleum & Minerals
    • Jihad Hassan Alsadah
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Method for widening road, superhighway or railway tunnels, without...
    • Patent number 6,375,390
    • Issue date Apr 23, 2002
    • Pietro Lunardi
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method, system and device for building a wall in the ground
    • Patent number 6,357,965
    • Issue date Mar 19, 2002
    • Heerema Ondergrondse Infrastructuren B.V.
    • Marinus Chr. Lammertink
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method of lining a tunnel and apparatus for performing the same
    • Patent number 6,315,496
    • Issue date Nov 13, 2001
    • Tachus GmbH
    • Thiemo Hagedorn
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel excavation apparatus
    • Patent number 5,382,114
    • Issue date Jan 17, 1995
    • Trevi S.P.A.
    • Davide Trevisani
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and apparatus for tunnelling
    • Patent number 5,104,260
    • Issue date Apr 14, 1992
    • Trevi S.P.A.
    • Davide Trevisani
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel excavation method
    • Patent number 4,673,218
    • Issue date Jun 16, 1987
    • Okumura Corporation
    • Susumu Murakami
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method of and apparatus for building thin lining on tunnel
    • Patent number 4,666,336
    • Issue date May 19, 1987
    • Okumura Corporation
    • Susumu Murakami
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and device for producing underground cavities using a drivin...
    • Patent number 4,260,194
    • Issue date Apr 7, 1981
    • Messerschmitt-Bolkow-Blohm GmbH
    • Friedrich-Karl Blindow
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Process of and an arrangement for mining
    • Patent number 4,254,995
    • Issue date Mar 10, 1981
    • Bochumer Eisenhutte Heintzmann GmbH & Co
    • Kuno Guse
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Channelling machine for cutting a preliminary groove around the wor...
    • Patent number 4,134,620
    • Issue date Jan 16, 1979
    • Sipremec
    • Alfred A. M. Valantin
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunnel excavator
    • Patent number 3,985,390
    • Issue date Oct 12, 1976
    • Kabushiki Kaisha Komatsu Seisakusho
    • Chiaki Kojima
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3881777
    • Patent number 3,881,777
    • Issue date May 6, 1975
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3840270
    • Patent number 3,840,270
    • Issue date Oct 8, 1974
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3708021
    • Patent number 3,708,021
    • Issue date Jan 2, 1973
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3616650
    • Patent number 3,616,650
    • Issue date Nov 2, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3597929
    • Patent number 3,597,929
    • Issue date Aug 10, 1971
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3433532
    • Patent number 3,433,532
    • Issue date Mar 18, 1969
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3356167
    • Patent number 3,356,167
    • Issue date Dec 5, 1967
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3328971
    • Patent number 3,328,971
    • Issue date Jul 4, 1967
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3325217
    • Patent number 3,325,217
    • Issue date Jun 13, 1967
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3322466
    • Patent number 3,322,466
    • Issue date May 30, 1967
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3266845
    • Patent number 3,266,845
    • Issue date Aug 16, 1966
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2979318
    • Patent number 2,979,318
    • Issue date Apr 11, 1961
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2913236
    • Patent number 2,913,236
    • Issue date Nov 17, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1950707
    • Patent number 1,950,707
    • Issue date Mar 13, 1934
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents