Chemically heated blanket

Stoves and furnaces – Heaters – Chemical

Patent

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Details

126204, 128403, F24J 100

Patent

active

051037904

ABSTRACT:
The present invention relates to a chemical warmer which comprises an air supply device, a first and a second panel peripherally fastened to each other to form an envelope to contain a chemical thermogenic material. The first panel is configured to include an air-impermeable top layer, an air-permeable middle layer with a plurality of air holes therethrough and an air-permeable inner layer with many micropores therethrough, the top and middle layers being partially welded to each other in such a way that a plurality of air distribution passages and gas exhaust passages are formed for uniformly distributing air inside the panel and extracting exhaust gases/air to a gas exit which is connected to a size-adjustable wastegate device. The second panel is air-impermeable. The air supply device is either hand-operated or electronically powered.

REFERENCES:
patent: 4516564 (1985-05-01), Koiso et al.
patent: 4572188 (1986-02-01), Augustine et al.
patent: 4664674 (1987-05-01), Oftedal et al.
patent: 4756299 (1988-07-01), Podella

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