Golf ball
US9555289B2 · kind B2 · utility
0Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jun 24, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0096
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf ball has a large number of dimples on a surface thereof. The golf ball meets the following mathematical formula (I): 1.320≦L1≦1.420 (I), where L1 represents a ratio of a lift coefficient CL1 which is measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 2820 rpm, relative to a lift coefficient CL2 which is measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 1740 rpm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.