Racket for ball games
US7967706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2007 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Feb 1, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B60/52
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A racket for ball games may include a frame which is formed by a frame profile or a hollow profile and has a racket head and a handle portion connected thereto preferably via a heart region. Two indentations that are symmetrical relative to the longitudinal axis of the racket may be provided in the heart region of the frame. A vibrating device may be arranged in each of the two indentations. The vibrating means of the racket may preferably be effective for vibrations having at least two vibration modes or degrees of freedom. Additionally or alternatively, a racket for ball games may include a frame which forms a head region for receiving strings and a handle portion for holding the racket. The frame may include one respective inwardly-facing C-profile in at least two segments of the head region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.