Heel cushion
US4928404A · kind A · utility
50Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1989 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Jan 4, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B17/16
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A heel cushion composed of silicone rubber having a region which can be centrally or eccentrically located directly below the heel spur and composed of a softer silicone rubber than the balance of the heel cushion so that in heel regions subjected to higher pressure, that higher pressure will be absorbed by the softer material and the pressure throughout the back bottom part of the foot will be more uniform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.