Exothermic body

Details Exothermic body Exothermic body

1981-07-28

1982-05-25

Van Balen, William J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

36 44, 36 87, 36 26, 4283166, 4283179, 44 1R, 44 3A, B32B 326, A43B 702, A43B 310

Patent

active

043317316

ABSTRACT:
The present invention provides an exothermic body for use of an insole of shoes and so forth with elasticity, softness and flexibility, the exothermic heat of which is distributed uniformly along the entire area thereof. The exothermic body includes a foamed plastic sheet having cells therein, the cells being filled with an exothermic agent such as a mixture of iron, saline solution, activated carbon and woodmeal or pulp powder. The foamed plastic sheet is covered by an air-permeable thin film such as a thin perforated plastic film. A cushion material is provided on at least one surface of the foamed plastic sheet covered with the air-permeable thin film and the foamed plastic sheet together with the cushion material is covered by an air-permeable film cover.

REFERENCES:
patent: 3493986 (1970-02-01), Erwin
patent: 3960628 (1976-06-01), Snyder
patent: 4023282 (1977-05-01), Ziegelheafer
patent: 4094080 (1978-06-01), Sanders
patent: 4146415 (1979-03-01), Caretta et al.
patent: 4249319 (1981-02-01), Yoshida

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