The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
May. 11, 2000
Takeshi Asakura, Akashi, JP;
Kaname Yamada, Kakogawa, JP;
Sumitomo Rubber Industries, Ltd., Hyogo-Ken, JP;
Abstract
A golf ball has a spherical surface provided with a plurality of dimples, a parting line extending on a great circle without crossing any of the dimples, and a first great circle, a second great circle and a third great circle dividing the spherical surface into eight spherical equilateral triangles, wherein the parting line crosses six of the eight spherical equilateral triangles, and with respect to each of the first to third great circles, the number of dimples on one side of the great circle is equal to the number of dimples on the other side of the great circle. Further, the golf ball may have the following features: with respect to any of two opposite equilateral triangles which are opposed about the center point of the spherical surface, the arrangement of dimples in one of them and the arrangement of dimples in the other are point-symmetrical about the center point; with respect to any of two adjacent spherical equilateral triangles which have a side in common, the arrangement of dimples in one of them and the arrangement of dimples in the other are not line-symmetrical about the common side; and with respect to any of four adjacent spherical equilateral triangles which have an apex in common, the arrangement of dimples in the four spherical equilateral triangles is not a point-symmetry about the common apex.