Golf balls

• US 4,960,282 A
• Filed: 10/06/1989
• Issued: 10/02/1990
• Est. Priority Date: 11/03/1987
• Status: Expired due to Term

• Current Assignee: Taylor Made Golf Co., Inc.
• Original Assignee: Dunlop Limited (Meggitt PLC)
• Inventors: Shaw, Michael
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US07/418,235
• Time in Patent Office: 361 Days
• Field of Search: 273/232, 273/233, 273/235 R, 273/62, 273/213
• 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 37/0007 Non-circular dimples
• CPC Class Codes: A63B 37/0009 Polygonal
• CPC Class Codes: A63B 37/0018 Specified number of dimples
• CPC Class Codes: A63B 37/002 Specified dimple diameter

Abstract

A golf ball with a plurality of dimples in its spherical outer surface has at least 10% of said dimples so disposed relative to one another that any two adjacent dimples overlap. The minimum overlap width is greater than 0.02 inches (0.508 mm).

Claims

1. A golf ball having in its spherical outer surface a plurality of dimples, wherein at least 10% of said dimples are so disposed relative to one another that any two of said dimples which are adjacent each other extend inside each other to form an overlapping region, the minimum width of said overlapping region being greater than 0.02 inches (0.508 mm).

2. The golf ball of claim 1, wherein at least 20% of said dimples extend inside each other to form an overlapping region.

3. The golf ball of claim 1, wherein the minimum width of said overlapping region is greater than 0.025 inches (0.635 mm).

4. The golf ball of claim 1, wherein the minimum width of said overlapping region is greater than 0.03 inches (0.762 mm).

5. The golf ball of claim 1, wherein all said dimples are of equal diameter.

6. The golf ball of claim 1, wherein said dimples are of two or more different diameters and the width of said overlapping region is calculated on the diameter of the larger of any two of said overlapping dimples.

7. The golf ball of claim 1, wherein said dimples are arranged in a repeating pattern over the whole spherical outer surface of said ball, said pattern being defined by projecting on to said spherical outer surface the edges of a regular polyhedron selected from the group consisting of a cube, an octahedron, a dodecahedron, an icosahedron and an icosidodecahedron.

8. The golf ball of claim 1, wherein said dimples are of circular plan view.

9. The golf ball of claim 8, wherein said dimples have a three-dimensional configuration selected from the group consisting of part-spherical, part-ellipsoid, conical and frusto-conical.

10. The golf ball of claim 1, wherein said dimples are of non-circular plan view.

11. The golf ball of claim 10, wherein said dimples have a plan view selected from the group consisting of triangular, rectangular and polygonal.

12. The golf ball of claim 11, wherein said dimples have a three-dimensional configuration selected from the group consisting of tetrahedral, parallelepiped and pyramidal.