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Richard L. Perl

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  • Mansfield, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Traveling flame burner
    • Patent number 4,781,170
    • Issue date Nov 1, 1988
    • The Tappan Company
    • Richard L. Perl
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Microwave oven energization circuit and components therefor
    • Patent number 4,375,587
    • Issue date Mar 1, 1983
    • The Tappan Company
    • Richard L. Perl
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Gas igniter
    • Patent number RE29853
    • Issue date Nov 28, 1978
    • The Tappan Company
    • Richard L. Perl
    • 219 - Electric heating
  • 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

    Domestic oven
    • Patent number RE29602
    • Issue date Apr 4, 1978
    • The Tappan Company
    • Richard L. Perl
    • 126 - Stoves and furnaces
  • 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

    Control circuit and adjustable valve for a gas appliance
    • Patent number 4,053,136
    • Issue date Oct 11, 1977
    • The Tappan Company
    • Richard L. Perl
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Gas cook top
    • Patent number 4,005,697
    • Issue date Feb 1, 1977
    • The Tappan Company
    • Richard L. Perl
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Control circuit and adjustable valve for a gas appliance
    • Patent number 3,981,674
    • Issue date Sep 21, 1976
    • The Tappan Company
    • Richard L. Perl
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Powered circulation oven
    • Patent number 3,973,551
    • Issue date Aug 10, 1976
    • The Tappan Company
    • Richard E. Caselani
    • A21 - BAKING EDIBLE DOUGHS
  • Information Patent Grant

    Blue flame gas smooth top range
    • Patent number 3,968,785
    • Issue date Jul 13, 1976
    • The Tappan Company
    • Richard L. Perl
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Adjustable thermal valve
    • Patent number 3,934,811
    • Issue date Jan 27, 1976
    • The Tappan Company
    • Richard L. Perl
    • F24 - HEATING RANGES VENTILATING