Heating device

Details Heating device Heating device

1989-01-09

1990-01-23

Kee Chi, James

Boots, shoes, and leggings

Boots and shoes

Heated

36117, 44 31, 126204, 165 46, 219211, A43B 702, A43B 504

Patent

active

048949310

ABSTRACT:
A heating device incorporated in an article of clothing or a shoe, notably a ski boot, comprising a sealed enclosure (2) in contact with the area of the body to be heated, this enclosure containing a salt (5) which changes phase between solid and liquid and has a latent fusion heat close to the normal temperature of the area of the body, from 30.degree. to 40.degree. C., and in which the heating resistance (6) is in a heat exchange with the salt contained in the sealed enclosure (2) such that after heating of the salt, as it returns to its solid state, it progressively gives off heat for a long period of time, while maintaining a substantially constant comfortable temperature.

REFERENCES:
patent: 266205 (1882-10-01), Roth
patent: 1894775 (1933-01-01), Levenson
patent: 2595328 (1952-05-01), Bowen
patent: 2680918 (1954-06-01), Behner
patent: 3951127 (1976-04-01), Watson et al.
patent: 3977093 (1976-08-01), Santroch
patent: 4201218 (1980-05-01), Feldman et al.

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