TREA

Anchoring-bolts formed by a bundle of radially arranged rigid elements

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Industry

  • CPC
  • E21D21/0066
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D21/00Anchoring-bolts for roof, floor in galleries or longwall working , or shaft-lining protection

Current Industry

E21D21/0066Anchoring-bolts formed by a bundle of radially arranged rigid elements
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Groutable rock anchor assembly
    • Patent number 10,465,515
    • Issue date Nov 5, 2019
    • NCM INNOVATIONS (PTY) LTD
    • Paolo Ettore Pastorino
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Method and system of coal mine roof stabilization
    • Patent number 10,202,848
    • Issue date Feb 12, 2019
    • REI, Inc.
    • Daniel J. Brunner
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Drilling tool, a self-drilling rock bolt, a drill bit, an anchoring...
    • Patent number 8,403,600
    • Issue date Mar 26, 2013
    • Sandvik Intellectual Property AB
    • Steven Weaver
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rock bolt and an anchoring device
    • Patent number 8,061,935
    • Issue date Nov 22, 2011
    • Sandvik Intellectual Property AB
    • Steven Weaver
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Self drilling rock bolt
    • Patent number 7,896,580
    • Issue date Mar 1, 2011
    • Sandvik Intellectual Property AB
    • Steven Weaver
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Rock bolt and method of use
    • Patent number 6,929,424
    • Issue date Aug 16, 2005
    • Romtech Limited
    • David John Hindle
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Reinforcing member
    • Patent number 6,779,950
    • Issue date Aug 24, 2004
    • Quantax Pty Ltd
    • Warwick Bernard Hutchins
    • D07 - ROPES CABLES OTHER THAN ELECTRIC
  • Information Patent Grant

    Packaging arrangements for rock stabilizer sets
    • Patent number 6,257,802
    • Issue date Jul 10, 2001
    • International Rollforms Incorporated
    • Jack Vosbikian
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Hollow bars and method of manufacture
    • Patent number 5,803,671
    • Issue date Sep 8, 1998
    • Peter Andrew Gray
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents