TREA

Devices with expanding elastic casings

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Industry

  • CPC
  • E21C37/10
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C37/00Other methods or devices for dislodging with or without loading

Current Industry

E21C37/10Devices with expanding elastic casings
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic rock fracturing device
    • Patent number 10,233,754
    • Issue date Mar 19, 2019
    • 2516139 ONTARIO INC.
    • Guy Legris
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rock breaking product
    • Patent number 9,062,953
    • Issue date Jun 23, 2015
    • Sandvik Mining and Construction RSA (PTY) Ltd.
    • Jarmo Uolevi Leppanen
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Method of and apparatus for breaking rock
    • Patent number 7,367,631
    • Issue date May 6, 2008
    • NXCO International Limited
    • Andre Van Dyk
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    Hydraulic expansion tube
    • Patent number 6,305,753
    • Issue date Oct 23, 2001
    • Casiano Glenie Rodrigues
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for hydraulically splitting up rock
    • Patent number 5,676,427
    • Issue date Oct 14, 1997
    • Jong Su Ha
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pressure actuated fracture device
    • Patent number 5,398,998
    • Issue date Mar 21, 1995
    • Aeroquip Corporation
    • Byrce B. Evans
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Apparatus for disintegrating monolythic entities
    • Patent number 5,020,859
    • Issue date Jun 4, 1991
    • Spetsializirovanny Trest PO Remontu Promyshlennykh Zdany I Sorruzheny Predpri...
    • Abram I. Pesin
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Powered member for splitting rock and other bodies
    • Patent number 5,000,517
    • Issue date Mar 19, 1991
    • Gorno-Altaisky Gosudarstvenny Pedagogichesky Institut
    • Jury A. Lebedev
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Expansion fracture device
    • Patent number 4,968,100
    • Issue date Nov 6, 1990
    • Dennis Corneil
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Device for building up directional force
    • Patent number 4,871,212
    • Issue date Oct 3, 1989
    • Gorno-Altaisky Gosudarstvenny Pedagogichesky Institut
    • Jury A. Lebedev
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rock crushing device and a method thereof
    • Patent number 4,721,339
    • Issue date Jan 26, 1988
    • Okumura Corporation
    • Mituya Sakai
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rock crushing device
    • Patent number 4,711,501
    • Issue date Dec 8, 1987
    • Okumura Machinery Corporation
    • Akiya Maeda
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Power unit
    • Patent number 4,690,460
    • Issue date Sep 1, 1987
    • Gorno-Altaisky Gosudarstvenny Pedagogichesky Institut
    • Jury A. Lebedev
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic rock breaking tool
    • Patent number 4,657,306
    • Issue date Apr 14, 1987
    • Robert Koopmans
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2634113
    • Patent number 2,634,113
    • Issue date Apr 7, 1953
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2581667
    • Patent number 2,581,667
    • Issue date Jan 8, 1952
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2286136
    • Patent number 2,286,136
    • Issue date Jun 9, 1942
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    2238058
    • Patent number 2,238,058
    • Issue date Apr 15, 1941
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    2233205
    • Patent number 2,233,205
    • Issue date Feb 25, 1941
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    2211243
    • Patent number 2,211,243
    • Issue date Aug 13, 1940
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1900446
    • Patent number 1,900,446
    • Issue date Mar 7, 1933
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1879907
    • Patent number 1,879,907
    • Issue date Sep 27, 1932
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1863286
    • Patent number 1,863,286
    • Issue date Jun 14, 1932
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    1808162
    • Patent number 1,808,162
    • Issue date Jun 2, 1931
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    1630470
    • Patent number 1,630,470
    • Issue date May 31, 1927
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents