Moulded shoe sole able to take in air from the inside of the sho

Details Moulded shoe sole able to take in air from the inside of the sho Moulded shoe sole able to take in air from the inside of the sho

1996-02-01

1997-08-12

Kavanaugh, Ted

Boots, shoes, and leggings

Boots and shoes

Ventilated

36 3R, A43B 708

Patent

active

056553145

ABSTRACT:
A molded sole takes air in from the inside of the shoe and expels it through the heel, due to the pumping action carried out by a cushion, able to elastically deform once the foot pressure is applied. The cushion is housed within a chamber on the bottom of the sole and communicates through a longitudinal channel blocked by a single acting valve, with a ring on the heel which communicates with the interior through a vent area.

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patent: 5175946 (1993-01-01), Tsai
patent: 5224277 (1993-07-01), Sang Do
patent: 5477626 (1995-12-01), Kwon
patent: 5515622 (1996-05-01), Lee

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