Patent ID: 7913421
Filing Date: 2011-03-29
Classification: A43B

Abstract:
1. A shoe sole assembly comprising: an insole having a plurality of holes formed therethrough; a sole affixed to said insole, said sole having at least one inlet opening at a front end thereof and at least one outlet opening at a side thereof adjacent a back end thereof, said sole having continuous airflow channel formed therein so as to extend longitudinally therealong between the inlet opening and the outlet opening, the inlet opening positioned so as to face a higher air pressure than an air pressure faced by the outlet opening, said continuous airflow channel narrowing therealong so as to cause a Venturi effect on air passing from the inlet opening to the outlet opening, said plurality of holes of said insole communicating with said airflow channel; a first shutter slidably mounted at the inlet opening and movable between a first position opening to said airflow channel and a second position closing said airflow channel; and a second shutter slidably mounted at the outlet opening and movable between a first position opening to said airflow channel and a second position closing said airflow channel.