using electrical or electromechanical means

Patents Grantslast 30 patents

  • Information Patent Grant

    Adaptor for mounting temperature sensitive duty cycling control wit...

    • Patent number 5,226,590
    • Issue date Jul 13, 1993
    • Davis; Raymond K.
    • Raymond K. Davis
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Combination pressure and temperature limit control for a fuel-fired...

    • Patent number 5,158,446
    • Issue date Oct 27, 1992
    • Rheem Manufacturing Company
    • Jacob H. Hall
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Water heater heat rollout sensor

    • Patent number 5,143,050
    • Issue date Sep 1, 1992
    • AOS Holding Company
    • Michael E. Spivey
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Apparatus for exhausting combustion gases from a gas water heater

    • Patent number 4,856,982
    • Issue date Aug 15, 1989
    • Tjernlund Products, Inc.
    • Kenneth A. Olson
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Internally mounted duty cycling control

    • Patent number 4,712,733
    • Issue date Dec 15, 1987
    • Raymond K. Davis
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Power gas burner for wood stove

    • Patent number 4,655,705
    • Issue date Apr 7, 1987
    • Alan B. Shute
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Adjustable temperature sensitive duty cycling furnace and air condi...

    • Patent number 4,470,267
    • Issue date Sep 11, 1984
    • Raymond K. Davis
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Snap acting heat motor operated gas valve

    • Patent number 4,412,650
    • Issue date Nov 1, 1983
    • Essex Group, Inc.
    • Kevin L. Young
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Safety ignition means for burner installations

    • Patent number 4,147,496
    • Issue date Apr 3, 1979
    • Robertshaw Controls Company
    • Satoshi Oikawa
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Thermally responsive actuator

    • Patent number 4,114,129
    • Issue date Sep 12, 1978
    • Robertshaw Controls Company
    • Bruce B. Parsons
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Thermal valve

    • Patent number 4,102,496
    • Issue date Jul 25, 1978
    • The Tappan Company
    • Richard L. Perl
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Gas valve

    • Patent number 4,067,539
    • Issue date Jan 10, 1978
    • The Tappan Company
    • Richard L. Perl
    • F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
  • Information Patent Grant

    Thermostatically controlled safety device for oil burners

    • Patent number 3,973,727
    • Issue date Aug 10, 1976
    • Joseph E. Scalzo
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3778218

    • Patent number 3,778,218
    • Issue date Dec 11, 1973
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3776684

    • Patent number 3,776,684
    • Issue date Dec 4, 1973
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3692014

    • Patent number 3,692,014
    • Issue date Sep 19, 1972
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3672810

    • Patent number 3,672,810
    • Issue date Jun 27, 1972
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3589846

    • Patent number 3,589,846
    • Issue date Jun 29, 1971
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3433411

    • Patent number 3,433,411
    • Issue date Mar 18, 1969
    • F22 - STEAM GENERATION
  • Information Patent Grant

    3419337

    • Patent number 3,419,337
    • Issue date Dec 31, 1968
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3374951

    • Patent number 3,374,951
    • Issue date Mar 26, 1968
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    3367388

    • Patent number 3,367,388
    • Issue date Feb 6, 1968
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3343418

    • Patent number 3,343,418
    • Issue date Sep 26, 1967
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3312270

    • Patent number 3,312,270
    • Issue date Apr 4, 1967
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3272432

    • Patent number 3,272,432
    • Issue date Sep 13, 1966
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3221798

    • Patent number 3,221,798
    • Issue date Dec 7, 1965
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    3209809

    • Patent number 3,209,809
    • Issue date Oct 5, 1965
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3204685

    • Patent number 3,204,685
    • Issue date Sep 7, 1965
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    3197139

    • Patent number 3,197,139
    • Issue date Jul 27, 1965
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    3191660

    • Patent number 3,191,660
    • Issue date Jun 29, 1965
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES