IP Library Granted Patent US 9,555,298
Granted Patent B2
US 9,555,298 · App. 14/857,386 · Granted Jan 31, 2017

Golf club head

Inventors: Scott A. Carlyle (Costa Mesa, CA); Sharon J. Park (Irvine, CA); Brian D. Schielke (Los Angeles, CA)
Assignee: SRI SPORTS LIMITED
A63B53/047A63B53/04B23K26/359B23K26/364A63B2053/0445
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Quick Facts
Patent No.
US 9,555,298
App. No.
14/857,386
Granted
Jan 31, 2017
Kind
B2
Abstract

A golf club head has a striking face with a plurality of scorelines including a first scoreline and a second scoreline adjacent thereto. The striking face also has a plurality of auxiliary grooves each spaced from the scorelines. In a first imaginary vertical plane, a first path is formed by a first intersection between the first imaginary vertical plane and the striking face, and the auxiliary grooves have a first concentration no less than 0.17 measured between the first and second scorelines. A second imaginary vertical plane is horizontally spaced from the first imaginary plane. A second path is formed in the second imaginary vertical plane by a second intersection between the second imaginary vertical plane and the striking face. The auxiliary grooves in the second imaginary vertical plane have a second concentration that is different from the first concentration measured between the first and second scorelines.

Claims (30)

1. A method of manufacturing a golf club head comprising:

providing a striking face having a plurality of scorelines including at least a first scoreline and a second scoreline adjacent the first scoreline;

laser-milling a first arrangement of at least three spaced apart texture elements that are each elongate in a first direction of elongation and aligned with each other in a first alignment direction that is the same as the first direction of elongation, the at least three texture elements interspersed between the plurality of scorelines,

wherein, in a first imaginary vertical plane generally perpendicular to the striking face and passing through the first scoreline and the second scoreline:

a first path is defined by a first intersection of the imaginary vertical plane and the striking face; and

the at least three texture elements has a first concentration no less than 0.17 measured over the first path and between edges of the first scoreline and the second scoreline.

2. The method of claim 1 , wherein the at least three texture elements are spaced from the plurality of scorelines.

3. The method of claim 1 , wherein each of the texture elements are formed in a central region of the striking face.

4. The method of claim 1 , wherein each of the texture elements has an average depth no greater than 15 microns.

5. The method of claim 1 , wherein the first concentration is no greater than 0.25.

6. The method of claim 1 , wherein each of the texture elements have an average width no greater than 1.0 mm.

7. The method of claim 1 , wherein over the first path, the texture elements have a frequency no less than 1.0 grooves/mm.

8. The method of claim 1 , wherein the texture elements comprise a first color and a region of the striking face surrounding the texture elements comprises a second color that is different from the first color.

9. The method of claim 1 , wherein the texture elements comprise dash-like elements.

10. The method of claim 1 , further comprising laser-milling a second arrangement of at least three spaced apart texture elements that are each elongate in a second direction of elongation and aligned with each other in a second alignment direction that is the same as the second direction of elongation, the second arrangement of at least three texture elements interspersed between the plurality of scorelines and vertically spaced from the first arrangement of texture elements.

11. The method of claim 1 , wherein the first direction of elongation corresponds with a generally heel-to-toe direction of the club head.

12. A method of manufacturing a golf club head comprising:

providing a striking face having a plurality of scorelines including a first scoreline and a second scoreline adjacent to the first scoreline; and

laser-milling at least three spaced apart texture elements,

wherein, when the club head is oriented in a reference position:

in a first imaginary vertical plane generally perpendicular to the striking face and passing through the first scoreline and the second scoreline: (a) a first path is formed by a first intersection between the first imaginary vertical plane and the striking face; and (b) the texture elements have a first concentration no less than 0.17 measured over the first path and between edges of the first scoreline and the second scoreline; and

in a second imaginary vertical plane generally perpendicular to the striking face and passing through the first scoreline and the second scoreline, the second imaginary vertical plane being horizontally spaced from the first imaginary plane: (a) a second path is formed by a second intersection between the second imaginary vertical plane and the striking face, and the texture elements have a second concentration measured over the first path and between the first scoreline and the second scoreline, the second concentration being different from the first concentration.

13. The golf club head of claim 10 , wherein the at least three texture elements are spaced from the plurality of scorelines.

14. The golf club head of claim 10 , wherein each of the texture elements are formed in a central region of the striking face.

15. The golf club head of claim 10 , wherein each of the texture elements has an average depth no greater than 15 microns.

16. The golf club head of claim 10 , wherein the first concentration is no greater than 0.25.

17. The golf club head of claim 10 , wherein each of the texture elements have an average width no greater than 1.0 mm.

18. The golf club head of claim 10 , wherein over the first path, the texture elements have a frequency no less than 1.0 grooves/mm.

19. The golf club head of claim 10 , wherein the texture elements comprise a first color and a region of the striking face surrounding the texture elements comprises a second color that is different from the first color.

20. The golf club head of claim 10 , wherein the texture elements comprise dash-like elements.

Assignments (2)
MERGER Recorded Jan 3, 2019
From: DUNLOP SPORTS CO., LTD.
To: SUMITOMO RUBBER INDUSTRIES, LTD.
Reel/Frame 048002/0320 →
CHANGE OF NAME Recorded Sep 5, 2018
From: SRI SPORTS LIMITED
To: DUNLOP SPORTS CO., LTD.
Reel/Frame 047597/0660 →
Continuity (3)
Continuation 14175763 · Feb 7, 2014
Continuation 13215917 · Aug 23, 2011
Related Publication 20160001142A1 · Jan 7, 2016