TREA

Karl Arden Nerstad

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  • East Peoria, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Power train system having creeper module
    • Patent number 7,357,752
    • Issue date Apr 15, 2008
    • Caterpillar Inc.
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multi-speed transmission
    • Patent number 6,620,070
    • Issue date Sep 16, 2003
    • Caterpillar Inc.
    • Karl Arden Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Countershaft transmission
    • Patent number 4,676,116
    • Issue date Jun 30, 1987
    • Caterpillar Inc.
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Countershaft transmission auxiliary drive mechanism
    • Patent number 4,660,425
    • Issue date Apr 28, 1987
    • Caterpillar Inc.
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Planetary transmission
    • Patent number 4,658,673
    • Issue date Apr 21, 1987
    • Caterpillar Inc.
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Vehicle transmission having countershaft and planetary portions
    • Patent number 4,614,133
    • Issue date Sep 30, 1986
    • Caterpillar Inc.
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Centrifugal clutch with an overspeed relief valve and clutch modula...
    • Patent number 4,238,020
    • Issue date Dec 9, 1980
    • Caterpillar Tractor Co.
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Self-modulated clutch with drag-reduction valve
    • Patent number 4,004,670
    • Issue date Jan 25, 1977
    • Caterpillar Tractor Co.
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Torsional damping assembly
    • Publication number 20080153656
    • Publication date Jun 26, 2008
    • Caterpillar Inc.
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Power train system having creeper module
    • Publication number 20030040398
    • Publication date Feb 27, 2003
    • Karl A. Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Multi-speed transmission
    • Publication number 20030032520
    • Publication date Feb 13, 2003
    • Karl Arden Nerstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...