Chemical heating pad with differing air-admitting perforation sets for different heat-generation levels
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United States of America Patent
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Jul 12, 1988
Issued Date -
N/A
app pub date -
Nov 18, 1987
filing date -
Dec 15, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A heating pad of the type having a particulate chemical mixture, which is exothermically reactive in the presence of air, and a pair of opposed panels forming an envelope containing the mixture and admitting air to support the reaction. Differing perforation sets in the opposed panels allows the pad to generate two levels of heat and allows opposed body-contact surfaces of the pad to apply two different heat conditions to the human body.
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