Insulated sole for article of footwear
OwnerRonie Reubeninventor
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Abstract
An insulated sole having down feather insulation held captive therein and method of fabrication is described. The sole is formed with open top end cavities in which there is disposed down feathers or mixtures thereof to capture and retain heat. A membrane seals the open top end of the cavities. The insulated sole is used in the fabrication of articles of footwear for use in cold weather climate to resist to the cold emanating from the ground to shield against heat loss from the wearer's feet.
Claims10
An outer insulated sole for an article of footwear, said outer insulated sole being molded from waterproof material, said waterproof material selected from rubber or a moldable plastic, said outer insulated sole having a ground engaging outer surface and an inner surface, a plurality of cavities formed in said inner surface, and down insulation or a mixture of down insulation with a material having insulating properties which is disposed within said cavities, said cavities being delineated by spaced apart vertical support walls or support posts, said vertical support walls or support posts having flat outer surfaces which acts as an insole for sealing the insole over said cavities on said flat outer surfaces to trap said down insulation or said mixture of down insulation with a material having insulating properties in said cavities;
- said down insulation or said mixture of down insulation with a material having insulating properties providing a thermal insulating barrier to act as a buffer, between said ground engaging outer surface and said inner surface.
Dependencies are inferred from the claim text.