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David D. Black

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  • Elgin, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of manufacturing a composite seal
    • Patent number 5,346,662
    • Issue date Sep 13, 1994
    • SKF USA Inc.
    • David D. Black
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Unitized grit seal with removable thrust bumper
    • Patent number 5,183,269
    • Issue date Feb 2, 1993
    • Chicago Rawhide Manufacturing Co.
    • David D. Black
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...