Cushion wedge for custom control of impact and pronation upon heel-strike in various weights of wearers
US4882856A · kind A · utility
28Cited by
14References
17Claims
0Family size
Inventor
Key dates
| Filing date | Apr 25, 1988 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Apr 25, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B7/24
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An insert with a wedge shaped cushion portion of greater resiliency than the remainder of the insert which is designed and arranged to be inserted through the foot opening of a shoe into an upwardly opening cavity in the posterior portion of the shoe. The cushion wedge portion is positioned to control the range of rotation of the heel of a wearer upon heel-strike and is provided in different resiliencies so that the insert may be used to properly address the impact resulting from heel-strike in different weights of wearers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.