Golf ball with spun elastic threads
US6149535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Mar 12, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/298
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention is directed towards a golf ball which comprises a center, at least one cover layer, and at least one layer of windings between the center and the cover. Preferably, the thread of the present invention is comprises of at least about 10 individual strands that are each about 0.01 inches in diameter. Most preferably, the thread is a solvent spun polyether urea thread manufactured by combining over 25 strands with diameters of less than about 0.002 inches. Because of the smaller thread dimension, the thread of the present invention is capable of being wound more densely than the typical thread. The elastic modulus of this thread is greater than about 20 ksi when wound about a center. The maximum elongation of the thread is greater than about 8%. The smaller cross-sectional area of the thread and higher elastic modulus of the thread also enable production of golf balls with less total thread volume. Thus, wound balls with larger liquid or solid centers may be produced to achieve desired spin characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.