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Don John Gerhardt

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  • Clemmons, NC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compressor control system and method
    • Patent number 6,082,971
    • Issue date Jul 4, 2000
    • Ingersoll-Rand Company
    • John T. Gunn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Compressor control system and method
    • Patent number 5,967,757
    • Issue date Oct 19, 1999
    • John T. Gunn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method for controlling compressor discharge pressure
    • Patent number 5,820,352
    • Issue date Oct 13, 1998
    • Ingersoll-Rand Company
    • John T. Gunn
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Method for providing lubricant to thrust bearing
    • Patent number 5,626,470
    • Issue date May 6, 1997
    • Ingersoll-Rand Company
    • Don J. Gerhardt
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...