Process for producing a ready-to-use racquet string, especially for tennis racquets
US5454525A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1993 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Dec 7, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H75/28
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for conditioning a racquet string which is tensioned to an elongation between 5 and 15% and in this state is wound on a spool. To implement this process, an untreated string segment is drawn off a supply drum and the end of the untreated string segment is affixed to the periphery of the spool. Thereupon the spool is moved away from the supply drum such that a specified winding length corresponding to the untreated string segment is tensioned to produce a predetermined elongation. While the tension is maintained, the elongated string segment, with simultaneous motion of the spool toward the supply drum, is then wound on the supply spool and lastly the second end of this string segment is affixed to the periphery of the spool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.