Golf ball

• US 5,016,887 A
• Filed: 06/05/1990
• Issued: 05/21/1991
• Est. Priority Date: 06/05/1990
• Status: Expired due to Term

• Current Assignee: Wilson Sporting Goods Company (Anta International Group Holdings Ltd.)
• Original Assignee: Wilson Sporting Goods Company (Anta International Group Holdings Ltd.)
• Inventors: Jonkouski, Gail C.
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US07/534,128
• Time in Patent Office: 350 Days
• Field of Search: 273/232, 273/220, 273/218, 273/62, 40/327
• US Class Current: 473/379
• CPC Class Codes: A63B 37/0004 Surface depressions or protrusions
• CPC Class Codes: A63B 37/0006 Arrangement or layout of dimples
• CPC Class Codes: A63B 37/0012 Dimple profile, i.e. cross-sectional view
• CPC Class Codes: A63B 37/0019 Specified dimple depth
• CPC Class Codes: A63B 37/002 Specified dimple diameter
• CPC Class Codes: A63B 37/0021 Occupation ratio, i.e. percentage surface occupied by dimples
• CPC Class Codes: A63B 37/0074 Two piece balls, i.e. cover and core

Abstract

A golf ball is provided with evenly and uniformly distributed dimples in a pattern which is governed by repeating polygons such as icosahedral triangles. The dimples are spherical in shape and the aspect ratio of all of the dimples is substantially constant, preferably 0.050. The largest dimples are located just inside the vertexes of the polygons, and the next largest dimples are located at the vertexes so that they are surrounded by the largest sized dimples.

Claims

1. A two-piece golf ball comprising a core and a cover having a spherical surface with a plurality of sets of spherical dimples formed therein, the dimples of each set having a circular periphery of a different diameter and having a different depth than the dimples of the other sets, the aspect ratio of all of the dimples being substantially the same, the dimples being arranged by dividing the spherical surface into a plurality of regular polygons, each polygon having a plurality of vertexes which are formed by the sides of the polygons, the largest dimples being located just inside each of the vertexes and the next largest sized dimples being located at the vertexes.

2. The golf ball of claim 1 in which the aspect ratio of all of the dimples is about 0.050.

3. The golf ball of claim 1 in which the diameter of the largest sized dimple is about 0.155 inch and the diameter of the next largest sized dimple is about 0.150 inch.

4. The golf ball of claim 3 in which the aspect ratio of all of the dimples is about 0.050.

5. The golf ball of claim 1 in which said regular polygons are icosahedral triangles, and each of the second largest sized dimples is surrounded by five of the largest sized dimples.

6. The golf ball of claim 5 in which the diameter of the largest sized dimple is about 0.155 inch and the diameter of the next largest sized dimple is about 0.150 inch.

7. The golf ball of claim 5 in which the aspect ratio of all of the dimples is about 0.050.