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Robert L. Koelzer

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  • Kearney, MO, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    SYSTEMS AND METHODS FOR SENSING A BRAKE COMPONENT WITH AN ACOUSTIC...
    • Publication number 20210239172
    • Publication date Aug 5, 2021
    • HALDEX BRAKE PRODUCTS CORPORATION
    • AARON C. BRADFORD
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SPRING BRAKE ACTUATOR WITH DIAPHRAGM RETAINER
    • Publication number 20210122352
    • Publication date Apr 29, 2021
    • HALDEX BRAKE PRODUCTS CORPORATION
    • ROBERT L. KOELZER
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    RESERVOIR PURGE VALVE
    • Publication number 20200080651
    • Publication date Mar 12, 2020
    • HALDEX BRAKE PRODUCTS CORPORATION
    • ROBERT L. KOELZER
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    SPRING BRAKE ACTUATOR WITH DIAPHRAGM RETAINER
    • Publication number 20190176793
    • Publication date Jun 13, 2019
    • HALDEX BRAKE PRODUCTS CORPORATION
    • ROBERT L. KOELZER
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    TRACTOR PROTECTION VALVE
    • Publication number 20180326964
    • Publication date Nov 15, 2018
    • HALDEX BRAKE PRODUCTS CORPORATION
    • ROBERT L. KOELZER
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    RESERVOIR PURGE VALVE
    • Publication number 20170146137
    • Publication date May 25, 2017
    • HALDEX BRAKE PRODUCTS CORPORATION
    • Robert L. Koelzer
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Air Suspension Height Control Valve with Dual Ride Height Positions
    • Publication number 20140265172
    • Publication date Sep 18, 2014
    • HALDEX BRAKE PRODUCTS CORPORATION
    • ROBERT L. KOELZER
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Compressor with fortified piston channel
    • Publication number 20060115367
    • Publication date Jun 1, 2006
    • Robert L. Koelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Fixed angle swash plate compressor
    • Publication number 20050207905
    • Publication date Sep 22, 2005
    • Robert L. Koelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Pressure reducing valve
    • Publication number 20050194046
    • Publication date Sep 8, 2005
    • Robert L. Koelzer
    • G05 - CONTROLLING REGULATING
  • Information Patent Application

    Modular swash plate compressor
    • Publication number 20050061143
    • Publication date Mar 24, 2005
    • Robert L. Koelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    System for regulating the supply of power to a brake system
    • Publication number 20050057094
    • Publication date Mar 17, 2005
    • Robert L. Koelzer
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Pump valve assembly
    • Publication number 20050047928
    • Publication date Mar 3, 2005
    • Robert L. Koelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Compressor with swash plate housing inlet port
    • Publication number 20040213678
    • Publication date Oct 28, 2004
    • Robert L. Koelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Swash plate containment assembly
    • Publication number 20040144246
    • Publication date Jul 29, 2004
    • Robert L. Koelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Unloading/venting valve having integrated therewith a high-pressure...
    • Publication number 20040040601
    • Publication date Mar 4, 2004
    • Robert L. Koelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Electronic control air management with parking brake and trailer su...
    • Publication number 20040012249
    • Publication date Jan 22, 2004
    • Robert L. Koelzer
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    AXIAL PISTON COMPRESSOR
    • Publication number 20020127116
    • Publication date Sep 12, 2002
    • Robert L. Koelzer
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...