Shoe sole structures

Details Shoe sole structures Shoe sole structures

2007-06-26

2007-06-26

Patterson, Marie (Department: 3728)

Boots, shoes, and leggings

Soles

Rope

C036S029000

Reexamination Certificate

active

10994746

ABSTRACT:
A shoe having an anthropomorphic sole that copies the underlying stability, support, and cushioning structures of the human foot. Natural stability is provided by attaching a completely flexible but relatively inelastic shoe sole upper directly to the bottom sole, enveloping the sides of the midsole, instead of attaching it to the top surface of the shoe sole. Doing so puts the flexible side of the shoe upper under tension in reaction to destabilizing sideways forces on the shoe causing it to tilt. That tension force is balanced and in equilibrium because the bottom sole is firmly anchored by body weight, so the destabilizing sideways motion is neutralized by the tension in the flexible sides of the shoe upper. Support and cushioning is provided by shoe sole compartments filled with a pressure-transmitting medium like liquid, gas, or gel. Unlike similar existing systems, direct physical contact occurs between the upper surface and the lower surface of the compartments, providing firm, stable support. Cushioning is provided by the transmitting medium progressively causing tension in the flexible and semi-elastic sides of the shoe sole. The support and cushioning compartments are similar in structure to the fat pads of the human foot, which simultaneously provide both firm support and progressive cushioning.

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