Stoves and furnaces – Stoves – Cooking
Patent
1989-11-28
1991-02-19
Jones, Larry
Stoves and furnaces
Stoves
Cooking
431 66, 431 77, 126 39R, 126 39BA, F24C 1530
Patent
active
049934015
ABSTRACT:
A cooking unit has a ceramic cooking surface, a gas burner underneath the surface, a gas supply including a solenoid valve for feeding a combustible gas to the burner, and an electric igniter juxtaposed with the burner and electrically energizable to ignite the combustible gas issuing from the burner. An electricity supply is connected to the igniter and to the gas supply for electrically energizing the igniter whenever the valve is open and supplying gas to the burner. In addition an electronic controller connected to the valve and to the electric supply monitors current consumption of the igniter and closes the valve when the current consumption of the igniter indicates same is malfunctioning. The controller includes a digital circuit that is also typically operated by the user of the cooker to turn the burners on and off and control their temperatures and an analog circuit connected parallel to each other. At least one of these circuits controls opening and closing of the valve. One of these arrangements is provided with a temperature display.
REFERENCES:
patent: 3898439 (1975-08-01), Reed et al.
patent: 3958791 (1976-05-01), Carlson
patent: 4402663 (1983-09-01), Romanelli et al.
patent: 4444551 (1984-04-01), Mueller et al.
patent: 4529373 (1985-07-01), Ortlinghaus
patent: 4681084 (1987-07-01), Grech
patent: 4706703 (1987-11-01), Takeuchi et al.
patent: 4891004 (1990-01-01), Ballard et al.
Cramer Wilhelm
Diekmann Helmut
Krohn Gunter
Cramer GmbH & Co. Kommanditgesellschaft
Dubno Herbert
Jones Larry
Wilford Andrew
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