Shoe with midsole including deflection inhibiting inserts
US4754559A · kind A · utility
83Cited by
10References
8Claims
0Family size
Inventor
Key dates
| Filing date | May 27, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | May 27, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/181
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A shoe containing a plurality of pairs of ribs provided between the mid-sole and the outer sole. All of the ribs are provided with at least one bowed or convex surface running the length of the rib. When weight is placed upon the sole, each of the ribs initially begins to deflect until adjacent ribs abut one another at which the ribs begin to compress. An elastic bridging element is provided between each of the ribs provided in a single pair of ribs. Additionally, tubes or plug inserts are provided between at least one pair of ribs or between adjacent rib pairs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.