TREA

Roger M. Clark

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  • Springfield, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Adjustment for rock crusher
    • Patent number 6,032,886
    • Issue date Mar 7, 2000
    • Johnson Crushers International
    • Daniel C. Drinkwater
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Gyratory crusher having tramp iron relief system with an annular hy...
    • Patent number 5,971,306
    • Issue date Oct 26, 1999
    • Cedarapids, Inc.
    • William A. Ganser
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Cone crusher for rock
    • Patent number 5,950,939
    • Issue date Sep 14, 1999
    • Johnson Crushers International
    • Daniel C. Drinkwater
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Gyratory crusher having self-contained lubrication system
    • Patent number 5,944,265
    • Issue date Aug 31, 1999
    • Cedarapids, Inc.
    • William A. Ganser
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Gyratory crusher having tramp iron relief system
    • Patent number 5,875,981
    • Issue date Mar 2, 1999
    • Cedarapids, Inc.
    • William A. Ganser
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Gyratory crusher having corrugation-like-seal
    • Patent number 5,803,382
    • Issue date Sep 8, 1998
    • Cedarapids, Inc.
    • William A. Ganser
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Cone crusher with peripherally driven gyratory head
    • Patent number 5,350,125
    • Issue date Sep 27, 1994
    • Cedarapids, Inc.
    • Roger M. Clark
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...