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Dennis J. Van Keulen

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  • Rogers, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mix manifold and valve seal assembly
    • Patent number 11,691,164
    • Issue date Jul 4, 2023
    • Graco Minnesota Inc.
    • David D. Loukusa
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Spray system pump wash sequence
    • Patent number 11,045,830
    • Issue date Jun 29, 2021
    • Graco Minnesota Inc.
    • David L. Fehr
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Spray system pressure differential monitoring
    • Patent number 10,688,509
    • Issue date Jun 23, 2020
    • Graco Minnesota Inc.
    • David L. Fehr
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Plural component proportioner comprising a first pump and a second...
    • Patent number 10,670,002
    • Issue date Jun 2, 2020
    • Graco Minnesota Inc.
    • Dennis J. Van Keulen
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Proportioning cylinder for spray system
    • Patent number 10,413,924
    • Issue date Sep 17, 2019
    • Graco Minnesota Inc.
    • Dennis J. Van Keulen
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Spray system pump wash sequence
    • Patent number 10,300,504
    • Issue date May 28, 2019
    • Graco Minnesota Inc.
    • David L. Fehr
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Spray system pressure differential monitoring
    • Patent number 10,195,622
    • Issue date Feb 5, 2019
    • Graco Minnesota Inc.
    • David L. Fehr
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Multi-point seal lubrication system
    • Patent number 10,173,232
    • Issue date Jan 8, 2019
    • Graco Minnesota Inc.
    • Dennis J. Van Keulen
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Grant

    Spray system pump wash sequence
    • Patent number 9,901,945
    • Issue date Feb 27, 2018
    • Graco Minnesota Inc.
    • David L. Fehr
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Plural component proportioner
    • Patent number D771719
    • Issue date Nov 15, 2016
    • Graco Minnesota Inc.
    • Dennis J. Van Keulen
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Integrated gun flush controller
    • Patent number 6,554,204
    • Issue date Apr 29, 2003
    • Graco Inc.
    • Vu K. Nguyen
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...

Patents Applicationslast 30 patents

  • Information Patent Application

    PIGGABLE PROPORTIONER AND PUMP
    • Publication number 20210379616
    • Publication date Dec 9, 2021
    • Graco Minnesota Inc.
    • Christopher J. Van Keulen
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    MIX MANIFOLD AND VALVE SEAL ASSEMBLY
    • Publication number 20210138494
    • Publication date May 13, 2021
    • Graco Minnesota Inc.
    • David D. Loukusa
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SPRAY SYSTEM PRESSURE DIFFERENTIAL MONITORING
    • Publication number 20190224700
    • Publication date Jul 25, 2019
    • Graco Minnesota Inc.
    • David L. Fehr
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SPRAY SYSTEM PUMP WASH SEQUENCE
    • Publication number 20190217323
    • Publication date Jul 18, 2019
    • Graco Minnesota Inc.
    • David L. Fehr
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    SPRAY SYSTEM PUMP WASH SEQUENCE
    • Publication number 20180154388
    • Publication date Jun 7, 2018
    • Graco Minnesota Inc.
    • David L. Fehr
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    PLURAL COMPONENT PROPORTIONER
    • Publication number 20180135608
    • Publication date May 17, 2018
    • Graco Minnesota Inc.
    • Dennis J. Van Keulen
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SPRAY SYSTEM PUMP WASH SEQUENCE
    • Publication number 20160167076
    • Publication date Jun 16, 2016
    • Graco Minnesota Inc.
    • David L. Fehr
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    SPRAY SYSTEM PRESSURE DIFFERENTIAL MONITORING
    • Publication number 20160153441
    • Publication date Jun 2, 2016
    • Graco Minnesota Inc.
    • David L. Fehr
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    PROPORTIONING CYLINDER FOR SPRAY SYSTEM
    • Publication number 20160151798
    • Publication date Jun 2, 2016
    • Graco Minnesota Inc.
    • Dennis J. Van Keulen
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    MULTI-POINT SEAL LUBRICATION SYSTEM
    • Publication number 20160146201
    • Publication date May 26, 2016
    • Graco Minnesota Inc.
    • Dennis J. Van Keulen
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    Automatic dose size selection for multi-component fluid proportioners
    • Publication number 20070181595
    • Publication date Aug 9, 2007
    • Theodore J. Stone
    • G05 - CONTROLLING REGULATING