Heating pack containing a granular chemical composition

Details Heating pack containing a granular chemical composition Heating pack containing a granular chemical composition

1975-01-08

1976-09-14

O'Dea, William F.

Stoves and furnaces

Heaters

Chemical

44 3A, 128403, 206219, 229 625, 150 7, 252 74, F24J 102

Patent

active

039800709

ABSTRACT:
A heating pack for use with an improved granular chemical composition which produces heat when water is added. The heating pack utilizes an inner and outer bag, the inner bag containing the granular composition and having a closure flap which is partially sealed by means of a barrier envelope which allows water to be added to the inner bag while preventing spillage of the granular composition. The chemical composition contains an improved oxidizing mixture in combination with iron particles which yields a relatively high heat output to weight ratio for the heating pack.

REFERENCES:
patent: 683896 (1901-10-01), Bates
patent: 1434576 (1922-11-01), Wertheimer
patent: 1525168 (1925-02-01), Davidson
patent: 1613120 (1927-01-01), Oneal
patent: 1652457 (1927-12-01), Reach
patent: 1659185 (1928-02-01), Baker
patent: 1819807 (1931-08-01), Baysinger
patent: 2040406 (1936-05-01), Reed
patent: 2132681 (1938-10-01), Davis et al.
patent: 2157169 (1939-05-01), Foster
patent: 2800269 (1957-07-01), Smith

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