Golf ball with elliptical cross-section dimples
US5653648A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1996 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Jul 9, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0052
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
1. A golf ball having a generally spherical outer surface and a center, the outer surface being provided with a plurality of dimples, at least some of the dimples having a surface with an elliptical cross section which is a portion of an ellipse defined by the equation: EQU X.sup.2 /A.sup.2 +(Y-k).sup.2 /B.sup.2 =1 where X is a coordinate on an X axis which extends perpendicularly to a radial line from the center of the ball to the center of the ellipse, Y is a coordinate on a Y axis which is aligned with said radial line, A is one-half of the major axis of the ellipse which is aligned with said X axis, B is one-half of the minor axis of the ellipse which is aligned with said Y axis, and K is the distance along the Y axis between the center of the ellipse and the center of the golf ball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.