Racket with self-powered piezoelectric damping system
US6974397B2 · kind B2 · utility
5Cited by
15References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2001 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Aug 1, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2102/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
According to one embodiment of the invention, a sports racket includes a racket frame comprising a head portion, handle portion and a throat portion joining the head portion to the handle portion. The racket frame also comprises a self-powered piezoelectric damping system for damping vibrations of the racket during play. The self-powered piezoelectric damping system comprises at least one transducer laminated to the racket and at least one circuit located within the racket handle portion and electrically connected to the at least one transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.