TREA

Non-telescopic props

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Industry

  • CPC
  • E21D15/02
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D15/00Props Chocks

Current Industry

E21D15/02Non-telescopic props
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Internally injected replacement support room-type coal pillar recov...
    • Patent number 11,313,226
    • Issue date Apr 26, 2022
    • China University of Mining and Technology
    • Nan Zhou
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Underground support
    • Patent number 11,131,189
    • Issue date Sep 28, 2021
    • FCI Holdings Delaware, Inc.
    • Kevin J. Ma
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Top plate for cribbing stacks and associated methods
    • Patent number 11,015,316
    • Issue date May 25, 2021
    • Cleveland Reclaim Industries
    • Tom Norton
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Equipment system for no-roadway no-coal-pillar retained roadway min...
    • Patent number 11,008,860
    • Issue date May 18, 2021
    • Manchao HE
    • Manchao He
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine roof support
    • Patent number 10,883,366
    • Issue date Jan 5, 2021
    • CROSSCUT ENTERPRISES LLC
    • David A. Hussey
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus and method for pre-loading mechanical constant-resistance...
    • Patent number 10,385,692
    • Issue date Aug 20, 2019
    • China University of Mining and Technology
    • Jixiong Zhang
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Mine roof support
    • Patent number 9,752,435
    • Issue date Sep 5, 2017
    • SETEVOX (PTY) LTD
    • Johann Adriaan Venter
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Engineered composite wooden crib for use as a mine support
    • Patent number 7,841,805
    • Issue date Nov 30, 2010
    • Board of Trustees of Southern Illinois University
    • Yoginder Paul Chugh
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine prop
    • Patent number 6,910,834
    • Issue date Jun 28, 2005
    • Burrell Mining Products, Inc.
    • William L. Harbaugh
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Compressible support column
    • Patent number 6,499,916
    • Issue date Dec 31, 2002
    • American Commercial Inc.
    • James E. Marianski
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Yieldable load support
    • Patent number 5,318,387
    • Issue date Jun 7, 1994
    • H L & H Timber Products (Proprietary) Limited
    • Frans R. P. Pienaar
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine prop
    • Patent number 4,915,339
    • Issue date Apr 10, 1990
    • H L & H Timer Products (Proprietary) Limited
    • Hagen Halbich
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine support prop
    • Patent number 4,712,947
    • Issue date Dec 15, 1987
    • Hunt Leuchars and Hepburn Limited
    • Michael J. Thom
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cribbing
    • Patent number 4,565,469
    • Issue date Jan 21, 1986
    • Commercial Shearing, Inc.
    • Nicholas Chlumecky
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Elongated prop for supporting a load
    • Patent number 4,534,531
    • Issue date Aug 13, 1985
    • Allan H. G. Brown
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Elongate compression bearing member
    • Patent number 4,520,980
    • Issue date Jun 4, 1985
    • Mine Support Systems (Proprietary) Ltd.
    • Rodney C. Townsend
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cribbing
    • Patent number 4,497,597
    • Issue date Feb 5, 1985
    • Commercial Shearing, Inc.
    • Nicholas Chlumecky
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Excavation roof support and method of installing the same
    • Patent number 4,277,204
    • Issue date Jul 7, 1981
    • Bochumer Eisenhutte Heintzmann GmbH & Co
    • Manfred Koppers
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Supporting of excavation roofs
    • Patent number 4,255,071
    • Issue date Mar 10, 1981
    • Bochumer Eisenhutte Heintzmann GmbH & Co
    • Manfred Koppers
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and system for supporting a roof
    • Patent number 4,185,940
    • Issue date Jan 29, 1980
    • Klaus Spies
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine roof support method and apparatus
    • Patent number 4,146,349
    • Issue date Mar 27, 1979
    • Jay H. Kelley
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3689017
    • Patent number 3,689,017
    • Issue date Sep 5, 1972
    • E04 - BUILDING
  • Information Patent Grant

    1642603
    • Patent number 1,642,603
    • Issue date Sep 13, 1927
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1489742
    • Patent number 1,489,742
    • Issue date Apr 8, 1924
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    INTERNALLY INJECTED REPLACEMENT SUPPORT ROOM-TYPE COAL PILLAR RECOV...
    • Publication number 20200378255
    • Publication date Dec 3, 2020
    • CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    • Nan ZHOU
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Underground Support
    • Publication number 20200173280
    • Publication date Jun 4, 2020
    • FCI Holdings Delaware, Inc.
    • Kevin J. Ma
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    MINE ROOF SUPPORT
    • Publication number 20200131905
    • Publication date Apr 30, 2020
    • Crosscut Enterprises LLC
    • David A. HUSSEY
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    APPARATUS AND METHOD FOR PRE-LOADING MECHANICAL CONSTANT-RESISTANCE...
    • Publication number 20190085690
    • Publication date Mar 21, 2019
    • CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    • Jixiong ZHANG
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    EQUIPMENT SYSTEM FOR NO-ROADWAY NO-COAL-PILLAR RETAINED ROADWAY MIN...
    • Publication number 20180187548
    • Publication date Jul 5, 2018
    • Manchao HE
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Rib Strap
    • Publication number 20160237819
    • Publication date Aug 18, 2016
    • FCI HOLDINGS DELAWARE, INC.
    • Dakota Faulkner
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    MINE ROOF SUPPORT
    • Publication number 20150204192
    • Publication date Jul 23, 2015
    • Saltus Poles CC
    • Johann Adriaan Venter
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Engineered composite wooden crib for use as a mine support
    • Publication number 20100221073
    • Publication date Sep 2, 2010
    • BOARD OF TRUSTEES OF SOUTHERN ILLINOIS UNIVERSITY
    • Yoginder Paul Chugh
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Mine prop
    • Publication number 20040240948
    • Publication date Dec 2, 2004
    • William L. Harbaugh
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Compressible support column
    • Publication number 20010055517
    • Publication date Dec 27, 2001
    • James E. Marianski
    • E21 - EARTH DRILLING MINING