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David L. Fehr

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  • Champlin, MN, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    ELECTRICALLY OPERATED DISPLACEMENT PUMP CONTROL SYSTEM AND METHOD
    • Publication number 20240254978
    • Publication date Aug 1, 2024
    • Graco Minnesota Inc.
    • Bradley H. Hines
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    COOLING FOR AN ELECTRICALLY OPERATED DISPLACEMENT PUMP
    • Publication number 20240183347
    • Publication date Jun 6, 2024
    • Graco Minnesota Inc.
    • Bradley H. Hines
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRICALLY OPERATED DISPLACEMENT PUMP CONTROL SYSTEM AND METHOD
    • Publication number 20230243347
    • Publication date Aug 3, 2023
    • Graco Minnesota Inc.
    • Bradley H. Hines
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRICALLY OPERATED DISPLACEMENT PUMP CONTROL SYSTEM AND METHOD
    • Publication number 20220074402
    • Publication date Mar 10, 2022
    • Graco Minnesota Inc.
    • Bradley H. Hines
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRICALLY OPERATED DISPLACEMENT PUMP ASSEMBLY
    • Publication number 20210301808
    • Publication date Sep 30, 2021
    • Graco Minnesota Inc.
    • Bradley H. Hines
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    ELECTRICALLY OPERATED DISPLACEMENT PUMP CONTROL SYSTEM AND METHOD
    • Publication number 20210301809
    • Publication date Sep 30, 2021
    • Graco Minnesota Inc.
    • Bradley H. Hines
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • 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

    PUMP CHANGEOVER ALGORITHM FOR SPRAY SYSTEM
    • Publication number 20190118201
    • Publication date Apr 25, 2019
    • Graco Minnesota Inc.
    • David L. Fehr
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • 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

    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 AND RATIO CONTROL
    • Publication number 20160167066
    • 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

    PUMP CHANGEOVER ALGORITHM FOR SPRAY SYSTEM
    • Publication number 20160158784
    • Publication date Jun 9, 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...