Putterhead with Dual Milled Face Pattern

• US 20060094534A1
• Filed: 01/13/2006
• Published: 05/04/2006
• Est. Priority Date: 01/13/2006
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: Byrne, Wayne H., Hettinger, Ronald K., Poincenot, Lionel
• Granted Patent: US 7,166,039 B2
• Time in Patent Office: Days
• US Class Current: 473/340
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0445 Details of grooves or the like on the impact surface
• CPC Class Codes: A63B 53/0487 for putters A63B53/065 takes precedence

Abstract

A putter-head (20) with a body (22) having a striking face (24) is disclosed herein. The striking face (24) has a dual milled pattern thereon. Preferably, a central area (40) has a first milled pattern and a periphery region (42) has a second milled pattern. The body (22) is composed of a metal material, preferably a stainless steel material.

Claims

1. A putter-type golf club head comprising:

a body composed of a metal material, the body having a striking face for impacting a golf ball, the striking face having a first milled pattern and a second milled pattern, the first milled pattern located in a central area of the striking face and the second milled pattern encompassing the central area, the second milled pattern different from the first milled pattern.

2. The putter-type golf club head according to claim 1 wherein the first milled pattern comprises a plurality of milled parallel horizontal lines and the second milled pattern comprises a plurality of milled parallel vertical lines.

3. The putter-type golf club head according to claim 1 wherein the first milled pattern comprises a plurality of milled parallel vertical lines and the second milled pattern comprises a plurality of milled parallel horizontal lines.

4. The putter-type golf club head according to claim 1 wherein the first milled pattern comprises a plurality of milled parallel horizontal lines and the second milled pattern comprises a plurality of milled curved lines.

5. The putter-type golf club head according to claim 4 wherein each of the plurality of milled parallel horizontal lines of the first milled pattern has a depth ranging from 0.0005 inch to 0.010 inch.

6. The putter-type golf club head according to claim 2 wherein each of the plurality of milled parallel horizontal lines of the first milled pattern has a depth greater than the depth of each of the plurality of milled parallel vertical lines of the second milled pattern.

7. The putter-type golf club head according to claim 1 wherein the body is composed of a stainless steel material.

8. The putter-type golf club head according to claim 1 wherein the body is composed of a titanium material.

9. The putter-type golf club head according to claim 1 wherein the first milled pattern has an area ranging from 0.25 square inch to 1.0 square inch, and the striking face has a total surface area ranging from 2.5 square inches to 5.0 square inches.

10. A putter-type golf club head comprising:

a body composed of a metal material, the body having a sole section, a crown section, and a striking face for impacting a golf ball, the striking face having a central area with a first milled pattern and a periphery area with a second milled pattern, the second milled pattern different from the first milled pattern, the striking face having a total surface area ranging from 2.5 square inches to 5.0 square inches, the central area ranging from 20% to 60% of the total surface area of the striking face.

11. The putter-type golf club head according to claim 10 wherein the first milled pattern comprises a plurality of milled parallel horizontal lines and the second milled pattern comprises a plurality of milled parallel vertical lines.

12. The putter-type golf club head according to claim 10 wherein the first milled pattern comprises a plurality of milled parallel vertical lines and the second milled pattern comprises a plurality of milled parallel horizontal lines.

13. The putter-type golf club head according to claim 10 wherein the first milled pattern comprises a plurality of milled parallel horizontal lines and the second milled pattern comprises a plurality of milled curved lines.

14. The putter-type golf club head according to claim 10 wherein the central area ranges from 30% to 45% of the total surface area of the striking face.

15. A putter-type golf club head comprising:

a body composed of a metal material, the body having a sole section, a crown section and a striking face for impacting a golf ball, the striking face having a central area with a first milled pattern and a periphery area with a second milled pattern, the second milled pattern different from the first milled pattern, the first milled pattern comprising a first plurality of milled lines having a depth ranging from 0.0005 inch to 0.010 inch, the second milled pattern comprising a second plurality of milled lines having a depth ranging from 0.0005 inch to 0.010 inch, the periphery area encompassing the central area, the striking face having a total surface area ranging from 2.5 square inches to 5.0 square inches, the central area ranging from 20% to 60% of the total surface area of the striking face.

16. The putter-type golf club head according to claim 15 wherein the crown section further comprises an alignment device, the alignment device selected from the group consisting of a plurality of aligned circles, a plurality of aligned chevrons and a plurality of parallel lines extending rearward from the striking face.

17. The putter-type golf club head according to claim 15 wherein the body is composed of a metal material selected form the group consisting of stainless steel, titanium, titanium alloy, aluminum alloy, aluminum, magnesium and magnesium alloy.

18. The putter-type golf club head according to claim 15 wherein the first plurality of milled lines comprises a plurality of milled parallel horizontal lines and the second plurality of milled lines comprises a plurality of milled parallel vertical lines.

19. The putter-type golf club head according to claim 15 wherein the first plurality of milled lines comprises a plurality of milled parallel vertical lines and the second plurality of milled lines comprises a plurality of milled parallel horizontal lines.

20. The putter-type golf club head according to claim 15 wherein the periphery region comprises a toe portion, a heel portion, a central crown portion and a central sole portion.