Golf ball having improved symmetry
US5908359A · kind A · utility
38Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1997 |
| Grant date | Jun 1, 1999 |
| Priority date | — |
| Expiry date | Nov 26, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0021
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention provides a golf ball of improved symmetry by regulating volume, area, edge length and array symmetry indexes Vi, Si, Li, and Ni obtained from coordinates (.theta.j, .phi.j) of a dimple center as represented by the latitude (in radian) and longitude of the ball and a radius rj and a volume vj of a dimple, for correcting a difference in dimple effect caused by a distortion of roundness of the ball. The golf ball does not have dimples which intersect the mold parting line, and the dimples occupy at least 65% of the ball surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.