Racket with lengthened longitudinal strings
US6432005B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jun 5, 2001 |
| Grant date | Aug 13, 2002 |
| Priority date | — |
| Expiry date | Jun 5, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B60/54
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A racket includes a frame, a Y-shaped throat integrally extending from the frame, a shaft integrally extending from the throat and a handle formed on the free end of the shaft. An end piece is attached to a free end of the handle. The end piece includes a rod integrally formed in the end piece perpendicular to a plane that contains the elements of the racket. The throat includes two hollow arms each having a slot defined to face the frame. The shaft and the handle are hollow. The longitudinal strings near the middle portion of the frame can pass through the slot into the shaft, loop around the rod and pass through the shaft and the slot to lengthen the strings. The lengthened string can absorb the reactive force and prevent the players from sustaining sport injuries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.