TREA

Slitting by unguided cutter cables or cutter chains, or by unguided tools drawn along the working face by cables or the like

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Industry

  • CPC
  • E21C25/54
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C25/00Cutting machines

Current Industry

E21C25/54Slitting by unguided cutter cables or cutter chains, or by unguided tools drawn along the working face by cables or the like
Industries

Patents Grantslast 30 patents

  • 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

    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

    Transportation of sulphur from solid sulphur deposits, in blocks of...
    • Patent number 8,789,345
    • Issue date Jul 29, 2014
    • Saipem S.p.A.
    • Leonardo Zan
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Grant

    Double slot wire sawing apparatus and method
    • Patent number 5,472,262
    • Issue date Dec 5, 1995
    • Marc O. R. G. Buyens
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Shaft excavation method
    • Patent number 4,950,034
    • Issue date Aug 21, 1990
    • Trigon Geoducts Limited
    • Neil Reid
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method and apparatus for deep mining using chain driven in fixed di...
    • Patent number 4,232,904
    • Issue date Nov 11, 1980
    • Robert L. Hurd
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3379476
    • Patent number 3,379,476
    • Issue date Apr 23, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2085756
    • Patent number 2,085,756
    • Issue date Jul 6, 1937
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    2049172
    • Patent number 2,049,172
    • Issue date Jul 28, 1936
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2049171
    • Patent number 2,049,171
    • Issue date Jul 28, 1936
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1998877
    • Patent number 1,998,877
    • Issue date Apr 23, 1935
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1967116
    • Patent number 1,967,116
    • Issue date Jul 17, 1934
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    1967117
    • Patent number 1,967,117
    • Issue date Jul 17, 1934
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    1892844
    • Patent number 1,892,844
    • Issue date Jan 3, 1933
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1880252
    • Patent number 1,880,252
    • Issue date Oct 4, 1932
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1418463
    • Patent number 1,418,463
    • Issue date Jun 6, 1922
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1286008
    • Patent number 1,286,008
    • Issue date Nov 26, 1918
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    945335
    • Patent number 945,335
    • Issue date Jan 4, 1910
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    928056
    • Patent number 928,056
    • Issue date Jul 13, 1909
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    787551
    • Patent number 787,551
    • Issue date Apr 18, 1905
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    659348
    • Patent number 659,348
    • Issue date Oct 9, 1900
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    596673
    • Patent number 596,673
    • Issue date Jan 4, 1898
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    569758
    • Patent number 569,758
    • Issue date Oct 20, 1896
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    532510
    • Patent number 532,510
    • Issue date Jan 15, 1895
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents