TREA

Axel W. Orphall

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  • McMurray, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hammer assembly for a rotary material crusher
    • Patent number 4,717,083
    • Issue date Jan 5, 1988
    • Roger H. Quast
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Wedge-clamp assembly for an impact crusher
    • Patent number 4,679,740
    • Issue date Jul 14, 1987
    • Stedman Machine Co.
    • Axel W. Orphall
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Impact crushers
    • Patent number 4,573,643
    • Issue date Mar 4, 1986
    • A & O Engineering, Inc.
    • Axel W. Orphall
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...