Interlocking string network for sports rackets
US6506134B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Jul 13, 2001 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Jul 13, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B51/11
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The invention is an improved sports racket comprising streamlined transversal strings and streamlined longitudinal strings with surface indentations that permit the strings to lock into other at the string crossings so the strings do not move with respect to each other and also stay oriented so as to minimize wind resistance during the swinging motion of the sports racket before and after ball contact. The invention includes a spacer for assembly of the strings in the sports racket incorporating a flexible body between the string and the racket frame for the absorption and restitution of part of the ball's kinetic energy during impact with the string to beneficially alter the feel of the strings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.