Shock damping and absorbing racket
US5020800A · kind A · utility
Inventor
Key dates
| Filing date | Mar 27, 1990 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Mar 27, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B60/54
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A shock damping and absorbing racket comprises a frame substantially in an oval form and a handle extending therefrom. A groove is made around the periphery of the frame. A plurality of through holes are evenly spaced along the groove, through which the string is interwoven to form a large striking surface within the frame. A rib is across the two opposite lateral side of the frame, making the vertical taut strings to cross it in such a way that one portion of the string crosses over the rib and another portion of the same string crosses under the rib so as to rapidly and efficiently stop and prevent the transmission of shock waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.