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Ralph Valkenberg

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  • Stolberg, DE
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    PUMP ASSEMBLY HAVING TWO PUMPS PROVIDED IN A SINGLE HOUSING
    • Publication number 20200208629
    • Publication date Jul 2, 2020
    • Stackpole International Engineered Products, Ltd.
    • Ralph VALKENBERG
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    EPITROCHOIDAL VACUUM PUMP
    • Publication number 20180291900
    • Publication date Oct 11, 2018
    • Stackpole International Engineered Products, Ltd.
    • Ralph VALKENBERG
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    VARIABLE DISPLACEMENT VANE PUMP WITH THERMO-COMPENSATION
    • Publication number 20180010605
    • Publication date Jan 11, 2018
    • Stackpole International Engineered Products, Ltd.
    • Manfred ARNOLD
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT VANE PUMP WITH INTEGRATED FAIL SAFE FUNCTION
    • Publication number 20160186752
    • Publication date Jun 30, 2016
    • Stackpole International Engineered Products, Ltd.
    • Ralph Valkenberg
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT VANE PUMP WITH INTEGRATED FAIL SAFE FUNCTION
    • Publication number 20160186623
    • Publication date Jun 30, 2016
    • Stackpole International Engineered Products, Ltd.
    • Ralph Valkenberg
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    VARIABLE DISPLACEMENT VANE PUMP WITH THERMO-COMPENSATION
    • Publication number 20160069346
    • Publication date Mar 10, 2016
    • Stackpole Powertrain International ULC
    • Manfred Arnold
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...