Reusable warmers of the type employing a super-cooled solution and an activator
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United States of America
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Aug 19, 1997
Grant Date -
N/A
app pub date -
Sep 26, 1995
filing date -
Jun 15, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides reusable warmers of the supersaturated solution type that are substantially free of saddlebagging. The warmers also exhibit a more sustained period of time during which the heat pack remains within a therapeutically useful temperature range. The reusable warmers of the present invention also maintain a substantial degree of flexibility during their useful heat cycle. The reusable warmers comprise a flexible container, and located within said container, a supercooled salt solution, an activator for initiating crystallization of said supercooled salt solution, and a gelling agent, said gelling agent being present in sufficient quantity to convert said salt solution to a gel.
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