Cooking griddle and associated gas flow control arrangement
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 29, 2011
Grant Date -
Sep 24, 2009
app pub date -
Mar 23, 2009
filing date -
Mar 24, 2008
priority date (Note) -
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Abstract
A cooking apparatus includes a housing and a cooking plate. Burners are located within the housing and below the cooking plate. A non-powered mechanical thermocouple probe is proximate to a pilot burner with a bi-metal element that produces an electrical signal when heated by the pilot burner. A pilot shutoff valve has an inlet connected to receive gaseous fuel from a gaseous fuel manifold, a pilot output connected to deliver gas to the pilot burner, a main burner output connected to deliver gas the burners, and a thermocouple probe input connected to receive the electrical signal produced by the bi-metal element. The pilot shutoff valve is biased to a default closed position where gas is prevented from flowing from the inlet to the pilot output and from the inlet to the main burner output. When the pilot shutoff valve is open, the pilot shut off valve permits gas to flow from the inlet to the pilot output and from the inlet to the main burner output.
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