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US 6,664,512 B2Granted
Warming blanket with heat reflective strips
AssigneeSunbeam Products, Inc.
InventorsLeonard I. Horey, Armando Alvite
Life of this patent
Estimating the term…
Abstract
Heat losses from electric heating pads, blankets and pillows are reduced by aligning heat reflective strips or coatings over the top of a heating wire arranged inside the pads, blankets and pillows. By reducing heat losses, lower wattage can be applied to the heating wire to transfer the same amount of heat to a user as equivalent higher wattage blankets which do not have the heat reflective strips. By lowering the applied wattage, a more efficient blanket results.
Claims14
A heating assembly comprising:
- a pliable cover;
- a heating element provided in said cover;
- and
- at least one heat reflective member provided over said heating element and extending over a limited portion of said cover so as to define at least one moisture passage around said heat reflective member and through said assembly.
1 more element
A method of assembling a heating assembly, comprising:
- providing a subassembly comprising a compliant substrate and a heating element carried thereon;
- providing a fabric shell for receiving said subassembly;
- inserting said subassembly into said shell;
- and
- providing at least one heat reflective member over said heating element and extending across a limited portion of said heating assembly so as to define at least one moisture passage around said heat reflective member and through said heating assembly.
2 more elements
Dependencies are inferred from the claim text.