Insoles for footwear

Details Insoles for footwear Insoles for footwear

1976-09-10

1977-12-13

Guest, Alfred R.

Boots, shoes, and leggings

Insoles

Laminated

A43B 1338

Patent

active

040621316

ABSTRACT:
An odor absorbing insole or insock covering the inner sole of footwear has a bottom inner sole engaging open cellular resilient cushion layer, an intermediate nonwoven random fiber felt mat porous layer having the fibers coated with an odor and moisture absorbing chemical such as activated charcoal or silica gel, and a porous slippery abrasion resisting top fabric layer protecting the foot or sock of the wearer against discoloration or irritation. The layers of the insole are laminated into integral unitary relation by heat sealing or by binders which do not impede flow of air. The alternating application and release of foot pressure on the insole as when walking will alternately compress and expand the open cellular cushion layer to pump air through intermediate layer and abrasion resisting top layer for circulating air in the footwear around the foot into intimate contact with the chemical for efficient absorption of moisture from foot perspiration and destruction of foot odors.

REFERENCES:
patent: 1926283 (1933-09-01), Herbert
patent: 2061911 (1926-11-01), Leindorf
patent: 3842519 (1974-10-01), Lapidus
patent: 3852897 (1974-12-01), Bridge et al.

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