Air ventilation outsole

Details Air ventilation outsole Air ventilation outsole

1998-03-30

1999-08-24

Kavanaugh, Ted

Boots, shoes, and leggings

Boots and shoes

Ventilated

36 29, A43B 706

Patent

active

059409894

ABSTRACT:
An air ventilation outsole has a heel, a blind hole in the heel, a rear vent hole on the heel, and a ventilation pad disposed in the blind hole. The ventilation pad has a plurality of upper recesses, a plurality of lower recesses, a first breather hole, a second breather hole, a large number of reinforced ribs disposed in the ventilation pad defining a plurality of air chambers, a first rear aperture, a second rear aperture, a pair of first opposite lateral apertures, and a pair of second opposite lateral apertures. A U-shaped plug device has a first plug and a second plug. The first plug has a first main body, a first center hole, and a first annular flange. The second plug has a second main body, a second center hole, and a second annular flange. The first annular flange is inserted in the second rear aperture. The second annular flange is inserted in the first rear aperture.

REFERENCES:
patent: 4308671 (1982-01-01), Bretschneider
patent: 4587749 (1986-05-01), Berlese
patent: 4815221 (1989-03-01), Diaz
patent: 4835883 (1989-06-01), Tetrault et al.
patent: 4860463 (1989-08-01), Pin
patent: 5092060 (1992-03-01), Frachey et al.
patent: 5138775 (1992-08-01), Chu
patent: 5477626 (1995-12-01), Kwon

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