TREA

Slitting by cutter cables or cutter chains or by tools drawn along the working face by cables or the like, in each case guided parallel to the face

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Industry

  • CPC
  • E21C25/56
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C25/00Cutting machines

Current Industry

E21C25/56Slitting by cutter cables or cutter chains or by tools drawn along the working face by cables or the like, in each case guided parallel to the face
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Mining pin retention system
    • Patent number 11,846,187
    • Issue date Dec 19, 2023
    • ITR America, LLC
    • Clayton A. Crystal
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • 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

    Mining pin retention system
    • Patent number 10,982,540
    • Issue date Apr 20, 2021
    • ITR America, LLC
    • Clayton A. Crystal
    • E21 - EARTH DRILLING MINING
  • 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

    Method for controlling longwall operations using boundary layer rec...
    • Patent number 8,608,248
    • Issue date Dec 17, 2013
    • RAG Aktiengesselschaft AG
    • Martin Junker
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pivoting guide pulley stand for wire saw
    • Patent number 7,150,277
    • Issue date Dec 19, 2006
    • Georgia Stone Quarries Inc.
    • Virgilio V. Sison
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Apparatus for mining a seam, in particular of coal
    • Patent number 5,474,365
    • Issue date Dec 12, 1995
    • Peter von Linsingen-Heintzmann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    System for cutting and conveying coal and the like
    • Patent number 5,181,766
    • Issue date Jan 26, 1993
    • Bochumer Eisenhutte Heintzmann GmbH & Co. KG
    • Peter Heintzmannn
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mining and conveying apparatus
    • Patent number 4,883,322
    • Issue date Nov 28, 1989
    • Bochumer Eisenhutte Heintzmann GmbH & Co. KG
    • Gunter Blumenthal
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3556601
    • Patent number 3,556,601
    • Issue date Jan 19, 1971
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    3399757
    • Patent number 3,399,757
    • Issue date Sep 3, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3390915
    • Patent number 3,390,915
    • Issue date Jul 2, 1968
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2891778
    • Patent number 2,891,778
    • Issue date Jun 23, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2868532
    • Patent number 2,868,532
    • Issue date Jan 13, 1959
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1687306
    • Patent number 1,687,306
    • Issue date Oct 9, 1928
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1683297
    • Patent number 1,683,297
    • Issue date Sep 4, 1928
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1638507
    • Patent number 1,638,507
    • Issue date Aug 9, 1927
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1634434
    • Patent number 1,634,434
    • Issue date Jul 5, 1927
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1583992
    • Patent number 1,583,992
    • Issue date May 11, 1926
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1534463
    • Patent number 1,534,463
    • Issue date Apr 21, 1925
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents