Method of making elastomeric shoe soles
US4657716A · kind A · utility
46Cited by
7References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1984 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Nov 30, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/83
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A shoe sole of elastomeric material is formed with at least one pressurized gas cell at least one wall of which is defined by a layer in which a substantially inextensible reinforcement is embedded to prevent bulging. The cell envelope can be formed by rotational casting of a liquid material within a cavity of a wear layer to simultaneously penetrate the reinforcing layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.