Golf ball
US4974856A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Nov 28, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/002
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
The present invention relates to a golf ball. The peripheral surface (2) of the ball has dimples defining by their intersections with this peripheral surface (2) intersection circles (55,57,59,60,64,68,70) which, in their majority (55,57,59,60,64,68), are distributed essentially inside 24 identical elemental surfaces (40) in spherical isosceles right-angle triangle form, and 8 second identical elemental surfaces (45) in spherical equilateral triangle form, which elemental surfaces (40,45) are defined by 4 equatorial circles (36,37,39) of the sphere defining the general shape of the peripheral surface (2) of the ball (3), eahc of the equilateral triangle (36,37,39) being centered on an axis passing through two diametrically opposed apices of a cube inscribed in this sphere, and by 3 equatorial circles (29,30,31) of this sphere, which are centered on axes passing through the respective centers of two diametrically opposed surfaces of the cube; the determined one (29) of these equatorial circles nevertheless cuts none of the intersection circles and subdivides the other equatorial circles (30,31,36,37,39) into two circular arcs which mutually cut at points (49,50) of the peripheral su…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.