Sole with resilient cavity
US5280680A · kind A · utility
58Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Jan 31, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B13/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A sole member for an article of footwear, comprises a sheet of resilient material displaying cushioning and memory properties. The sheet has a generally longitudinal cavity with outwardly flared sidewalls that deflect horizontally in the presence of a downward force. The cavity is wider in the heel region and curves outwardly toward the lateral forefoot to create a path of least resistance that causes the center of mass of the human body to migrate laterally and thereby reduce predisposition to excessive pronation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.