Sole for athletic shoe and method of making the same
US4649586A · kind A · utility
15Cited by
12References
2Claims
0Family size
Inventor
Key dates
| Filing date | Nov 12, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Nov 12, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3724
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A midsole for an athletic shoe made by a process comprising, forming a plastic board using a composition containing polyethylene resin, polypropylene resin, polyester fiber, acrylic fiber, nylon fiber and cotton fiber, overlaying at least one layer of woven fabric on said plastic board, and punching needle holes at intervals in the full area of the superposed board and fabric layer, whereby the fibers in the board and the fabric layer are interlinked binding the board and the fabric layer, and vents are formed in the bonded board and the fabric layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.