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US 7,107,703 B1Granted
Shoe sole
OwnerYan Wanginventor
Life of this patent
Estimating the term…
Abstract
The present invention is a shoe sole formed from cotton fabric and bonded together with what in the prior art was thought to be a water soluble glue. As used in the specific construction of the present invention, millet glue is not substantially water soluble after about a year's worth of water exposure and day to day use of footwear having the invention shoe sole.
Claims10
A method for forming a shoe sole adapted to be attached to a shoe upper, the combination of which shall substantially cover a user's foot comprising:
- (a) forming a millet glue from millet heated in water to form a paste and combined with an effective amount of preservative;
- (b) forming two to twenty sole layers, each sole layer being formed by applying millet glue to four to twenty layers of loosely woven cotton fabric and heavily compressing together the layers of loosely woven cotton fabric;
- and
- (c) gluing together the sole layers and subsequently stitching the sole layers together at a stitching density of fifteen to twenty-five stitches per square inch.
1 more element
A shoe sole comprising:
- (a) two to twenty sole layers, each sole layer having been formed by applying millet glue to four to twenty layers of loosely woven cotton fabric and heavily compressing together the layers of loosely woven cotton fabric;
- and
- (b) the shoe sole having sole layers which have been glued together with millet glue and stitched together a stitching density of fifteen to twenty-five stitches per square inch.
Dependencies are inferred from the claim text.