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Ralph A. Hamaker

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  • Penfield, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Belt alignment system
    • Patent number 4,397,538
    • Issue date Aug 9, 1983
    • Xerox Corporation
    • Vittorio Castelli
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Edge guide for belt tracking
    • Patent number 4,367,031
    • Issue date Jan 4, 1983
    • Xerox Corporation
    • Ralph A. Hamaker
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Belt tracking system
    • Patent number 4,344,693
    • Issue date Aug 17, 1982
    • Xerox Corporation
    • Ralph A. Hamaker
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Belt tracking system
    • Patent number 4,286,706
    • Issue date Sep 1, 1981
    • Xerox Corporation
    • Vittorio Castelli
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Replenishable photoconductive system
    • Patent number 4,215,932
    • Issue date Aug 5, 1980
    • Xerox Corporation
    • Vittorio Castelli
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Belt tensioning system
    • Patent number 4,206,994
    • Issue date Jun 10, 1980
    • Xerox Corporation
    • Morton Silverberg
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Pneumatic system for supporting and steering a belt
    • Patent number 4,197,002
    • Issue date Apr 8, 1980
    • Xerox Corporation
    • Ralph A. Hamaker
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Belt tracking system
    • Patent number 4,174,171
    • Issue date Nov 13, 1979
    • Xerox Corporation
    • Ralph A. Hamaker
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Sheet stripping apparatus
    • Patent number 4,119,307
    • Issue date Oct 10, 1978
    • Xerox Corporation
    • Ralph A. Hamaker
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Sheet stripping apparatus
    • Patent number 4,119,308
    • Issue date Oct 10, 1978
    • Xerox Corporation
    • Ralph A. Hamaker
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
  • Information Patent Grant

    Development imaging methods
    • Patent number 4,040,827
    • Issue date Aug 9, 1977
    • Xerox Corporation
    • Ralph A. Hamaker
    • G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY