TREA

John G. Crofts

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  • Columbus, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Torsional tunable coupling for a diesel engine drive shaft
    • Patent number 5,720,248
    • Issue date Feb 24, 1998
    • Cummins Engine Company, Inc.
    • John G. Crofts
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Torsional tunable coupling for a diesel engine drive shaft
    • Patent number 5,303,681
    • Issue date Apr 19, 1994
    • Cummins Engine Company, Inc.
    • John G. Crofts
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Venting filler cap
    • Patent number 4,776,390
    • Issue date Oct 11, 1988
    • Cummins Engine Company, Inc.
    • John G. Crofts
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Twin-flow cooling system
    • Patent number 4,620,509
    • Issue date Nov 4, 1986
    • Cummins Engine Company, Inc.
    • John G. Crofts
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Cooling system
    • Patent number 4,550,692
    • Issue date Nov 5, 1985
    • Cummins Engine Company, Inc.
    • John G. Crofts
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS