Footwear shock absorbing system
US5983529A · kind A · utility
140Cited by
24References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 1997 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Jul 31, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/145
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A shock absorbing cassette for the midsole of an article of footwear is described. The shock absorbing cassette has a cassette base, first and second sets of cushion elements, and a reduced height cushion element in between the first and second sets of cushion elements. The cushion elements are arranged to cushion the heel of the foot. The shock absorbing cassette may be part of a shoe sole shock absorbing system that also includes an insole board having forefoot slits to improve flexing, a thin midsole with a heel pocket for seating the cassette, and a durable outsole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.