Tennis racquet with variable center of gravity and balance
US4355803A · kind A · utility
13Cited by
6References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1980 |
| Grant date | Oct 26, 1982 |
| Priority date | — |
| Expiry date | Dec 22, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B60/10
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A tennis racquet with variable center of gravity and balance which comprises (a) a head, a handle and a grip, with the handle comprised of two side frames, (b) a weighted mechanism slidably mounted between the two side frames, and (c) ball and detent means between the weighted mechanism and the side frames for readily maintaining the position of the weighted mechanism at intermediate positions between head and grip as the weighted mechanism is slid back and forth between the head and the grip, thereby shifting the center of gravity and the balance toward the head or the grip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.