TREA

Planing knives

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Industry

  • CPC
  • E21C27/44
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21CMINING OR QUARRYING E21C27/00Machines which completely free the mineral from the seam

Current Industry

E21C27/44Planing knives
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Plow bit assembly
    • Patent number 9,988,904
    • Issue date Jun 5, 2018
    • Caterpillar Global Mining Europe GmbH
    • Gerhard Siepenkort
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Bit arrangement for a mining plough, and mining plough for plough s...
    • Patent number 8,714,659
    • Issue date May 6, 2014
    • Caterpiller Global Mining Europe GmbH
    • Adam Klabisch
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cutter-bit assemblies
    • Patent number 4,762,372
    • Issue date Aug 9, 1988
    • Gewerkschaft Eisenhutte Westfalia GmbH
    • Christoph Rassmann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cutters for use in mineral mining
    • Patent number 4,637,658
    • Issue date Jan 20, 1987
    • Wolfgang Annipajo
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Floor cutter bit
    • Patent number 4,376,553
    • Issue date Mar 15, 1983
    • Gewerkschaft Eisenhutte Westfalia
    • Oswald Breuer
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Non-rotary mining cutter with recessed nozzle insert
    • Patent number 4,280,735
    • Issue date Jul 28, 1981
    • Gewerkschaft Eisenhutte Westfalia
    • Armin Lobbe
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Rock cutting tip inserts
    • Patent number 4,194,790
    • Issue date Mar 25, 1980
    • Coal Industry (Patents) Ltd.
    • Peter Kenny
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Cutter bit assemblies for coal ploughs
    • Patent number 4,076,318
    • Issue date Feb 28, 1978
    • Gewerkschaft Eisenhutte Westfalia
    • Alois Hauschopp
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    3904247
    • Patent number 3,904,247
    • Issue date Sep 9, 1975
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents