Root warmer insole and method

Details Root warmer insole and method Root warmer insole and method

1992-05-29

1993-07-27

Meyers, Steven N.

Boots, shoes, and leggings

Soles

Fleeced slipper

36 43, A43B 704

Patent

active

052301702

ABSTRACT:
An insole for a boot or the like has a cavity in the padding layer for holding a heat source that produces heat from an exothermic chemical reaction. The cavity is preferably located in the toe portion of the padding layer. The upper layer of the insole preferably has a plurality of holes therein for facilitating heat transfer from the heat source to the foot of a person using the insole. A pull cord may be connected to the stabilizer layer for facilitating removal of the insole from a boot or the like.

REFERENCES:
patent: 2675630 (1954-04-01), Youmans
patent: 2680918 (1954-06-01), Behner
patent: 3493986 (1970-02-01), Erwin
patent: 3585736 (1971-06-01), Polichena
patent: 4023282 (1977-05-01), Ziegelheafer
patent: 4249319 (1981-02-01), Yoshida
patent: 4331731 (1982-05-01), Seike et al.
patent: 4658515 (1987-04-01), Oatman
patent: 4686993 (1987-08-01), Grumbine
WO 8706803, Nov. 1987, PCT, Ledjeff, 36/2.6.

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