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Joseph H. Heffner

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  • Chesterfield, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Oil level control system
    • Patent number 6,125,642
    • Issue date Oct 3, 2000
    • Sporlan Valve Company
    • G. Thomas Seener
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Distributor for refrigeration system
    • Patent number 5,832,744
    • Issue date Nov 10, 1998
    • Sporlan Valve Company
    • David C. Dorste
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Expansion and check valve combination
    • Patent number 5,524,819
    • Issue date Jun 11, 1996
    • Sporlan Valve Company
    • Joseph H. Heffner
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Dual capacity thermal expansion valve
    • Patent number 5,423,480
    • Issue date Jun 13, 1995
    • Sporlan Valve Company
    • Joseph H. Heffner
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Dual capacity thermal expansion valve
    • Patent number 5,277,364
    • Issue date Jan 11, 1994
    • Sporlan Valve Company
    • Joseph H. Heffner
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Expansion valve with inlet strainer
    • Patent number 5,232,015
    • Issue date Aug 3, 1993
    • Sporlan Valve Company
    • Joseph H. Heffner
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Injection valve for a refrigeration system
    • Patent number 5,148,684
    • Issue date Sep 22, 1992
    • Sporlan Valve Company
    • J. George Leimbach
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Thermostatic expansion valve
    • Patent number 5,065,595
    • Issue date Nov 19, 1991
    • Sporlan Valve Company
    • G. Thomas Seener
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Shuttle valve for a refrigeration system
    • Patent number 5,038,827
    • Issue date Aug 13, 1991
    • Sporlan Valve Company
    • Joseph H. Heffner
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Refrigerant purge valve
    • Patent number 4,982,578
    • Issue date Jan 8, 1991
    • Sporlan Valve Company
    • Joseph H. Heffner
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Expansion and check valve combination
    • Patent number 4,964,567
    • Issue date Oct 23, 1990
    • Sporlan Valve Company
    • Joseph H. Heffner
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...