Flexible heat transfer pad

Details Flexible heat transfer pad Flexible heat transfer pad

1988-03-10

1989-08-22

Jones, Larry

Stoves and furnaces

Stoves

Cooking

126400, 219462, 219464, 165185, F24C 300, F24H 700, A05B 368

Patent

active

048585904

ABSTRACT:
A flexible heat transfer pad for positioning on an electrical coil of the heating element on a stove. The pad includes two embossed metal plates with a metal alloy body sandwiched in between the two plates. The center section of the pad defined by the alloy body closely corresponds to the area of the electrical coil. An annular extension around the body includes opposite circular recesses for reinforcement of the pad. The upwardly extending recess forms a drip ring to confine any inadvertent overflow from a pan on the pad. A depending skirt around the drip recess extends over the rim of the heating element and substantially closes the stove opening. A liquid metal alloy body is preferably INDALLOY, a tin and bismuth alloy combination that melts at 281.degree. F. with no appreciable expansion or contraction during phase change or temperature transition. Other alloys or materials with similar properties can be used as a substitute material for the body as long as the melting point is approximately 140.degree. F. or higher. Upon melting at the elevated temperature, the pad becomes flexible so as to conform to the contour of the heating element coil, as well as the bottom of the pan on top. This provides maximum heat transfer efficiency.

REFERENCES:
patent: 1386303 (1921-08-01), Armstrong
patent: 3083286 (1963-03-01), Swetlitz
patent: 3569672 (1971-03-01), Hurko
patent: 3845273 (1974-10-01), Hurko
patent: 4634841 (1987-01-01), Laughrey

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