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US 5,393,462 AGranted
Reusable thermal pack and flow retardant gel for use therein
AssigneeP.I., Inc.
InventorJohn R. Avery
Life of this patent
Estimating the term…
Abstract
A thermal pack for heating or cooling portions of a body and a flow retardant gel for use therein. The thermal pack includes a gel pad and a pressure chamber. The gel includes a fibrous material disposed therein to essentially prevent flow and increase heat capacity.
Claims9
A non-flowing gel for use in thermal packs for human treatment, said gel comprising a mixture of materials comprising
- clay, a liquid and a fibrous or flake material;
- the clay being a clay substrate in an amount of from about 15% to 30% by weight;
- the liquid including a glycol and water wherein the water is in an amount of from about 0% to 75% by weight;
- and
- the fibrous or flake material being of sufficient concentration to impart a negligible flow rate in said gel and provide uniform contact between the hot or cold pack with the affected area, wherein said sufficient concentration is from about 1% to 10% by weight;
- the gel being a semi-rigid, non-flowing, extremely viscous mixture comprising a colloidal dispersion of a solid with a liquid.
3 more elements
Dependencies are inferred from the claim text.