TREA

William F. Hahn

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  • Philadelphia, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Differential rate screening
    • Patent number 4,627,576
    • Issue date Dec 9, 1986
    • Hahn; William F.
    • William F. Hahn
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Differential rate screening
    • Patent number 4,544,101
    • Issue date Oct 1, 1985
    • Penn Virginia Corporation
    • William F. Hahn
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Differential rate screening
    • Patent number 4,544,102
    • Issue date Oct 1, 1985
    • Penn Virginia Corporation
    • William F. Hahn
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    Crusher-dryer and method of crushing
    • Patent number RE30778
    • Issue date Oct 20, 1981
    • Pennsylvania Crusher Corporation
    • William F. Hahn
    • 241 - Solid material comminution or disintegration
  • Information Patent Grant

    Impacting crusher with variable flow feed distributor
    • Patent number 4,162,767
    • Issue date Jul 31, 1979
    • Pennsylvania Crusher Corporation
    • William F. Hahn
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Crusher-dryer and method of crushing
    • Patent number 4,085,897
    • Issue date Apr 25, 1978
    • Pennsylvania Crusher Corporation
    • William F. Hahn
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Method of operating breaker/crusher
    • Patent number 4,009,834
    • Issue date Mar 1, 1977
    • Pennsylvania Crusher Corporation
    • William F. Hahn
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
  • Information Patent Grant

    Breaker/crusher
    • Patent number 3,931,937
    • Issue date Jan 13, 1976
    • Pennsylvania Crusher Corporation
    • William F. Hahn
    • B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...