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William D. Vork

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  • Edina, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cartridge pressure regulator
    • Patent number 4,942,899
    • Issue date Jul 24, 1990
    • Graco Inc.
    • William D. Vork
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Energy conserving refrigeration device
    • Patent number 4,843,841
    • Issue date Jul 4, 1989
    • Graco Inc.
    • William D. Vork
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Pilot valve
    • Patent number 4,789,131
    • Issue date Dec 6, 1988
    • Graco Inc.
    • William D. Vork
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Centrifugal sprayer having interchangeable feed mechanism
    • Patent number 4,591,096
    • Issue date May 27, 1986
    • Polaris Home Systems, Inc.
    • Irving F. Snyder
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Method of mixing liquids in closed containers
    • Patent number 4,263,003
    • Issue date Apr 21, 1981
    • Graco, Inc.
    • William D. Vork
    • B44 - DECORATIVE ARTS
  • Information Patent Grant

    Apparatus for mixing liquids
    • Patent number 4,173,418
    • Issue date Nov 6, 1979
    • Graco Inc.
    • William D. Vork
    • B44 - DECORATIVE ARTS
  • Information Patent Grant

    Secondary pump feed apparatus
    • Patent number 4,147,478
    • Issue date Apr 3, 1979
    • Graco Inc.
    • William D. Vork
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Variable seat check valve
    • Patent number 4,086,936
    • Issue date May 2, 1978
    • Graco Inc.
    • William Duncan Vork
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Diaphragm pump having a reed valve barrier to hydraulic shock in th...
    • Patent number 4,050,859
    • Issue date Sep 27, 1977
    • Graco Inc.
    • William Duncan Vork
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Automatic metering and dispensing system
    • Patent number 4,046,287
    • Issue date Sep 6, 1977
    • Graco Inc.
    • Joop Frans Hoekstra
    • B44 - DECORATIVE ARTS
  • Information Patent Grant

    Piston drive assembly
    • Patent number 4,019,395
    • Issue date Apr 26, 1977
    • Graco Inc.
    • William D. Vork
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Fog/spray system and apparatus
    • Patent number 4,000,856
    • Issue date Jan 4, 1977
    • Graco Inc.
    • Vernon K. Quarve
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Rotatable spray nozzle
    • Patent number 3,955,763
    • Issue date May 11, 1976
    • Graco Inc.
    • Arlon R. Pyle
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...