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Peter D. Ewing

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  • Milford, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making a sucker rod assembly
    • Patent number 4,538,339
    • Issue date Sep 3, 1985
    • National Set Screw
    • Peter D. Ewing
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Coupling for sucker rod assembly
    • Patent number 4,500,224
    • Issue date Feb 19, 1985
    • NSS, Industries, Inc.
    • Peter D. Ewing
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Torque limiting set screw
    • Patent number 4,492,500
    • Issue date Jan 8, 1985
    • Peter D. Ewing
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tool holder for a mining tool bit and method for making same
    • Patent number 4,485,655
    • Issue date Dec 4, 1984
    • National Set Screw Corporation
    • Peter D. Ewing
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Sucker rod assembly
    • Patent number 4,406,561
    • Issue date Sep 27, 1983
    • NSS Industries
    • Peter D. Ewing
    • E21 - EARTH DRILLING MINING