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Roy J. Walker

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  • Bartlett, TN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Auxiliary pumping unit
    • Patent number 10,246,302
    • Issue date Apr 2, 2019
    • ThyssenKrupp Elevator Corporation
    • Anthony Frank Hamlett
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Synthetic fiber rope for an elevator
    • Patent number 7,032,371
    • Issue date Apr 25, 2006
    • Thyssen Elevator Capital Corp.
    • Rory Smith
    • B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

  • Information Patent Application

    Noise Abatement for Elevator Submersible Power Units
    • Publication number 20150375966
    • Publication date Dec 31, 2015
    • ThyssenKrupp Elevator Corporation
    • Anthony Frank Hamlett
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Auxiliary Pumping Unit
    • Publication number 20150360910
    • Publication date Dec 17, 2015
    • ThyssenKrupp Elevator Corporation
    • Anthony Frank Hamlett
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Application

    Synthetic fiber rope for an elevator
    • Publication number 20060213175
    • Publication date Sep 28, 2006
    • Rory S. Smith
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Synthetic fiber rope for an elevator
    • Publication number 20030226347
    • Publication date Dec 11, 2003
    • Rory Smith
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Elevator safety brake
    • Publication number 20020170790
    • Publication date Nov 21, 2002
    • Roy J. Walker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...