Thrust producing shoe sole and heel

Details Thrust producing shoe sole and heel Thrust producing shoe sole and heel

A - Human Necessities

43

B

36/80

A43B 13/18 (2006.01)

Patent

CA 1141152

ABSTRACT OF THE DISCLOSURE A thrust producing shoe sole and heel having fluid-proff cavities respectively located in the heel portion and in the sole portion which underlies the metatar- sal ball area of a foot for which the sole and heel is sized, the two cavities being connected by a restricted passageway. The material underlying the two cavities at the bottom of the sole and heel is resilient and wear-resis- tant. Fluid, either gas or liquid, is contained within the cavities and passageway in such pressure and amount as to cause bulges below the normal bottoms of the sole and heel, whereby at rest a foot on the sole and heel is cushioned confortably on the fluid in the bulges, and in walking fluid under bulge producing pressure alternates through the passageway between the two cavities, producing shock absorp- tion and an alternate lifting effect by the bulges which provides forward thrust both in the heel portion and the metatarsal ball area that facilitates walking.

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