Self-ventilating device for a shoe insole

Details Self-ventilating device for a shoe insole Self-ventilating device for a shoe insole

1990-11-30

1991-12-03

Sewell, Paul T.

Boots, shoes, and leggings

Boots and shoes

Ventilated

36 3B, 36 29, 36 35B, 36 78, 36 38, A43B 706, A43B 1320, A43B 2130

Patent

active

050689819

ABSTRACT:
A self-ventilating device for a shoe insole, which includes a heel chamber body having a spring disposed therein, an inlet valve having a plurality of sole aperture for communicating with a plurality of channels in the sole portion of the shoe insole, and a pair of outlet valves disposed in both side walls thereof for communicating to the atmosphere, whereby when each step is taken by the shoe user, a moisture and odor waste quantity of air is forced from the channels in the sole portion through the inlet valve to the heel chamber body when the pair of outlet valves are closed and expelled through the pair of outlet valves to the atmosphere automatically when the inlet valve is closed.

REFERENCES:
patent: 337146 (1886-03-01), Gluecksmann
patent: 2442026 (1948-05-01), Thompson, Jr.
patent: 4654982 (1987-04-01), Lee
patent: 4860463 (1989-08-01), Pin

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