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Ronald B. Walters

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  • Wembley, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable displacement pumps
    • Patent number 5,064,351
    • Issue date Nov 12, 1991
    • Vickers Systems Limited
    • Peter M. Hamey
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Flow sensor
    • Patent number 4,811,607
    • Issue date Mar 14, 1989
    • Vickers Systems Limited
    • Ronald B. Walters
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Hydraulic control system
    • Patent number 4,667,571
    • Issue date May 26, 1987
    • Vickers, Incorporated
    • Ronald B. Walters
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Hydraulic valves with dual feedback control
    • Patent number 4,635,682
    • Issue date Jan 13, 1987
    • Vickers, Incorporated
    • Ronald B. Walters
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Pressure relief valves
    • Patent number 4,619,186
    • Issue date Oct 28, 1986
    • Vickers, Incorporated
    • Ronald B. Walters
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Feedback controlled hydraulic valve system
    • Patent number 4,598,626
    • Issue date Jul 8, 1986
    • Vickers, Incorporated
    • Ronald B. Walters
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Flow sensor with extended low flow range
    • Patent number 4,459,860
    • Issue date Jul 17, 1984
    • Sperry Limited
    • Ronald B. Walters
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Hydraulic valves
    • Patent number 4,413,648
    • Issue date Nov 8, 1983
    • Sperry Limited
    • Ronald B. Walters
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic valve
    • Patent number 4,411,289
    • Issue date Oct 25, 1983
    • Sperry Limited
    • Ronald B. Walters
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic actuator controls
    • Patent number 4,362,084
    • Issue date Dec 7, 1982
    • Sperry Corporation
    • Ronald B. Walters
    • F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
  • Information Patent Grant

    Hydraulic actuator controls
    • Patent number 4,235,105
    • Issue date Nov 25, 1980
    • Sperry Corporation
    • Ronald B. Walters
    • G01 - MEASURING TESTING