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John Nelson

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  • Durham, NH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pressure regulating unit
    • Patent number 5,598,869
    • Issue date Feb 4, 1997
    • Robertshaw Controls Company
    • John Nelson
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Pneumatic valve with slow start and quick exhaust
    • Patent number 5,337,788
    • Issue date Aug 16, 1994
    • Robertshaw Controls Company
    • John Nelson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure regulating unit for beverage dispensing system
    • Patent number 5,303,733
    • Issue date Apr 19, 1994
    • Robertshaw Controls Company
    • John Nelson
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Injection lubricator with plural outlets
    • Patent number 4,944,367
    • Issue date Jul 31, 1990
    • Watts FluidAir Div. of Robertshaw Controls Company
    • John Nelson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...