Golf ball
US6991565B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2004 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Nov 16, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0083
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Disclosed herein is a golf ball having a plurality of round dimples on the surface thereof, which is characterized in that said dimples include those of two kinds or more differing in diameter such that the ratio of the maximum diameter to the minimum diameter is at least 1.5, said dimples add up to 240 to 290, with large dimples 4.7 mm or above in diameter accounting for more than 50%, and said dimples are formed such that the volume under a flat surface surrounded by the edge of each dimple divided by the volume of a hypothetical cylinder having said flat surface as the bottom and the maximum depth from the bottom as the height is 0.49 to 0.85 on average for all the dimples. The golf ball having adequately formed and arranged dimples achieves a long flying distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.