Unidirectional air transfer system for shoes

Details Unidirectional air transfer system for shoes Unidirectional air transfer system for shoes

1995-05-01

1996-12-31

Kavanaugh, Ted

Boots, shoes, and leggings

Boots and shoes

Ventilated

36 3R, A43B 708

Patent

active

055882269

ABSTRACT:
A shoe includes an assembly inner-sole and outsole with openings formed therethrough and one or more unidirectional air transfer sets disposed between the openings in the outsole and the openings in the inner-sole. The unidirectional air transfer set includes tissues separated by a breathable, waterproof membrane which permits the passage of humid or moist air in one direction only from the interior of the shoe to the exterior of the shoe to improve comfort for the user. The membrane is preferably formed of a hydrophilic polyurethane polymer.

REFERENCES:
patent: 123675 (1872-02-01), Bryant
patent: 208190 (1878-09-01), Mayer
patent: 4290211 (1981-09-01), Csengeri
patent: 4654982 (1987-04-01), Lee
patent: 5452525 (1995-09-01), Miyauchi

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