Golf ball dimple pattern with overlapping dimples

• US 7,258,632 B2
• Filed: 09/29/2005
• Issued: 08/21/2007
• Est. Priority Date: 12/18/2003
• Status: Active Grant

• Current Assignee: Acushnet Company (FILA Holdings Corp.)
• Original Assignee: Acushnet Company (FILA Holdings Corp.)
• Inventors: Morgan, William E., Aoyama, Steven
• Primary Examiner(s): GORDEN, RAEANN
• Application Number:
  US11/237,653
• Publication Number:
  US 20060025245A1
• Time in Patent Office: 691 Days
• Field of Search: 473378-385
• US Class Current: 473/383
• CPC Class Codes: A63B 37/0004 Surface depressions or protrusions
• CPC Class Codes: A63B 37/00065 located around the pole or the equator

Abstract

A golf ball product, or other non-streamlined body, having a dimple pattern in which at least some of the dimples overlap at least one adjacent dimple is disclosed. A new parameter called Overlap Saturation (OS) is disclosed. OS is the ratio of the number of overlap instances on a ball to the maximum possible number for an ideal hypothetical ball with the same number of dimples. Overlap instances are tallied by summing the number of overlapping neighbor dimples for every dimple. Golf ball products employing the disclosed dimple patterns have an increase in total yardage compared to an equivalent product without overlapping dimples.

Claims

1. A golf ball product, comprising:

an outer surface having dimples formed therein, some of said dimples overlapping others of said dimples;

wherein;

an average number of overlaps per dimple ranges from approximately 2.4 to approximately 6;

said outer surface further includes a non-dimpled land area; and

said overlapping dimples overlap along junctions, said junctions being curved and having a midpoint spaced inward from said land area.

2. The golf ball product of claim 1, wherein said average number of overlaps per dimple is at least approximately 3.6.

3. The golf ball product of claim 2, wherein said average number of overlaps per dimple is at least approximately 5.1.

4. The golf ball product of claim 1, wherein said dimples are axially symmetric.

5. A golf ball product, comprising:

an outer surface having dimples formed therein, some of said dimples overlapping others of said dimples;

wherein the golf ball product has an overlap saturation from approximately 0.4 to approximately 1, said overlap saturation calculated as;

$\mathrm{OS}=\frac{\mathrm{oi}}{6·<br><br>d},$

where OS is the overlap saturation, oi is the number of overlap instances, and d is the number of dimples on said outer surface; and

wherein;

said outer surface further includes a non-dimpled land area; and

said overlapping dimples overlap along junctions, said junctions being curved and having a midpoint spaced inward from said land area.

6. The golf ball product of claim 5, wherein said overlap saturation is at least 0.6.

7. The golf ball product of claim 5, wherein said dimples are axially symmetric.

8. A golf ball product, comprising:

an outer surface having axially symmetric dimples formed therein and further including a non-dimpled land area, some of said dimples overlapping others of said dimples along junctions, said junctions being curved and having a midpoint spaced inward from said land area;

wherein a majority of said dimples overlap a plurality of adjacent ones of said dimples.

9. The golf ball product of claim 8, wherein a majority of said dimples overlap three or more adjacent dimples.

10. The golf ball product of claim 8, wherein a majority of said dimples overlap four or more adjacent dimples.

11. The golf ball product of claim 8, further comprising a parting line and wherein some of said dimples are aligned across said parting line and positioned to overlap across said parting line.

12. The golf ball product of claim 8, wherein an average number of overlaps per dimple ranges from approximately 2.4 to approximately 6.

13. A golf ball product, comprising:

an outer surface having dimples with an axially symmetric profile formed therein and further having a non-dimpled land area, said dimples positioned such that some of said profiles overlap others of said profiles;

wherein an average number of overlaps per dimple ranges from approximately 2.4 to approximately 6; and

wherein said dimples having overlapping profiles that overlap along junctions, said junctions being curved and having a midpoint spaced inward from said land area.