Adjusting stiffness and flexibility in sports equipment
US6113508A · kind A · utility
66Cited by
33References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1998 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Aug 18, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2102/24
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A sports apparatus with variable directions of stiffness and flexibility, including sports equipment having a body with an elongated cavity; and a stiffening rod that is elongated and has a longitudinal axis in a direction of elongation of the stiffening rod, the stiffening rod being inserted within the cavity and stiffer in one direction than in a different direction and being more flexible in the different direction than in the one direction, both the one direction and the different direction being directed transverse to the longitudinal axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.