Golf ball having direction-sighting indications and mold for manufacturing the same
US6752725B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 21, 2003 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Mar 21, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B43/008
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf ball having direction-sighting indications, with which a golfer can easily sight a direction for the golf ball to fly when he/she strikes the ball with one of golf clubs, and a mold for manufacturing such golf balls. The golf ball according to the present invention has a first indicating line having a plurality of indicating holes distinguishable in shape and dimension from normal dimples formed on an outer surface of the golf ball. The first indicating line establishes a straight line extending along an equator on the surface of the golf ball to form a first direction indicating line, on which a starting point and an ending point are identical. A second indicating line, having a plurality of indicating holes identical in shape and dimension to those of the first indicating line, is formed on the surface of the golf ball. The second indicating line establishes a second direction indicating line so that two crossing points with the first indicating line are formed and, at the same time, a first axis is formed through the two crossing points and a center of the golf ball.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.