Golf ball
US4936587A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1980 |
| Grant date | Jun 26, 1990 |
| Priority date | — |
| Expiry date | Dec 4, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/002
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Dimples on a golf ball are interrelated by dimple number, dimple diameter and dimple depth and are arranged on the surface of the golf ball in a manner which enables the golf ball to travel further. At least about 80% of the distances between the closest points of the edges of adjacent dimples are less than about 0.065 inches and at least about 55% of the distances between the closest points of the edges of adjacent dimples are greater than about 0.001 inches. Dimple number, dimple diameter and dimple depth are also interrelated in a specific manner according to the formula: ##EQU1## wherein: d=average depth of all dimples in inches PA1 D=average diameter of all dimples in inches PA1 S=computed unknown (1.0 or less for present invention) PA1 x, y, a and b are dependent on the number of dimples.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.