Simplified energy-return shoe system

Details Simplified energy-return shoe system Simplified energy-return shoe system

2011-05-31

2011-05-31

Mohandesi, Jila M (Department: 3728)

Boots, shoes, and leggings

Soles

Spring heel

C036S114000, C036S102000, C036S031000, C036S007800

Reexamination Certificate

active

07950166

ABSTRACT:
A simplified energy-return shoe system includes an energy-return shoe system is disclosed including a shoe portion for containing a user's foot with an upper sole having an upper toe sole area and an upper heel sole area. The upper sole is affixed to a bottom surface of the shoe portion and the upper sole is bendable at a point between the upper toe sole area and the upper heel sole area. A lower sole has a lower toe sole area and a lower heel sole area. The lower sole is bendable at a point between the lower toe sole area and the lower heel sole area. A heel suspension mechanism links the upper heel sole area to the lower heel sole area whereas the upper heel sole area is held in a parallel relationship to the lower heel sole area and the upper heel sole is allowed to move backwards in relationship to the lower heel sole. A device such as a spring is provided for pushing the upper heel sole area away from the lower heel sole area.

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