Midsole
US4782603A · kind A · utility
70Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1986 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Aug 12, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/188
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A molded midsole encapsulating a series of parallel, spaced-apart tubes for shock absorption. The tubes are disposed perpendicular to the longitudinal axis of the sole. The tubes are constructed from a material somewhat more rigid than the surrounding molded material. The tubes may be arranged in the forefoot region, or in the heel region, or throughout the longitudinal span of the midsole. Transverse strips of tubing material may be used to space apart and join tubes to fabricate separate tube assemblies which are inserted directly in the midsole mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.