TREA

working with pulses

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Industry

  • CPC
  • E21C3/26
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C3/00Drilling machines with reciprocating tool that is intermittently turned when out of contact with the working face

Current Industry

E21C3/26working with pulses
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Pulse generating device and a rock drilling rig comprising such a d...
    • Patent number 8,720,602
    • Issue date May 13, 2014
    • Atlas Copco Rock Drills AB
    • Fredrik Saf
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Percussion device
    • Patent number 8,061,434
    • Issue date Nov 22, 2011
    • Sandvik Mining and Construction Oy
    • Markku Keskiniva
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Rotary percussive drilling device
    • Patent number 7,404,458
    • Issue date Jul 29, 2008
    • Sandvik Mining and Construction Lyon SAS
    • Franck Leon
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Percussive tool
    • Patent number 4,690,225
    • Issue date Sep 1, 1987
    • Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk SSSR
    • Konstantin K. Tupitsyn
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents