Shoe midsole with ventilation devices

Details Shoe midsole with ventilation devices Shoe midsole with ventilation devices

1993-08-26

1994-04-05

Sewell, Paul T.

Boots, shoes, and leggings

Boots and shoes

Ventilated

36 3R, A43B 706

Patent

active

052993680

ABSTRACT:
A shoe midsole has a heel portion provided with an elastic shock-absorbing member which is embedded therein and which has an arcuate projection, an air chamber, a plurality of cavities located in the peripheries of the arcuate projection, a plurality of first air ducts through which the cavities communicate with the air chamber, and a plurality of through holes extending from the top surface of the arcuate projection to communicate with the air chamber. The elastic shock-absorbing member further has a plurality of second air ducts extending inwards along the peripheries thereof to communicate with the cavities. The heel portion is provided with a plurality of recesses corresponding in location and number to the second air ducts.

REFERENCES:
patent: 1660698 (1928-02-01), Williams, Sr.
patent: 1938393 (1933-12-01), Kelley
patent: 2003646 (1935-06-01), De Blasio
patent: 2050337 (1936-08-01), Kelley
patent: 2751692 (1956-06-01), Cortina
patent: 5068981 (1991-12-01), Jung

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