Solid golf ball
US5033748A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Jan 9, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0094
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Disclosed is a solid golf ball (including a one piece solid golf ball and another type solid golf ball) which has excellent durability and a high impact resilience, as well as good feeling when struck. The solid golf ball of the present invention is characterized in that a hardness (H) of a rubber portion of the solid golf ball, when measured by a JIS-C hardness meter, decreases with distance from the surface to the center and satifies the following equation; EQU When 0.ltoreq.l.ltoreq.5 416-6l.ltoreq.5H.ltoreq.440-6l EQU When 5<l.ltoreq.r 77.ltoreq.H.ltoreq.82 wherein l is a distance in mm from the surface and r is the radius of the golf ball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.