PUTTERHEAD WITH DUAL MILLED FACE PATTERN

• US 20090069107A1
• Filed: 11/18/2008
• Published: 03/12/2009
• Est. Priority Date: 09/18/2006
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: POINCENOT, LIONEL, BYRNE, WAYNE H., HETTINGER, RONALD K.
• Granted Patent: US 7,540,810 B2
• Time in Patent Office: Days
• US Class Current: 473/251
• 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 53/042 the face insert consisting of a material different from that of the head
• CPC Class Codes: A63B 53/0441 with visual indicators for aligning the golf club
• 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 main body (22) having a striking face (24), a weight body (25) and an isolation layer 27 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 main body (22) is composed of a metal material, preferably a stainless steel material.

Claims

1. A putter-type golf club head comprising:

a main body composed of a metal material, the main 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 oriented differently 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 main body is composed of a stainless steel material.

8. The putter-type golf club head according to claim 1 wherein the main 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.

19. The golf club head according to claim 1 wherein the main body is composed of carbon steel and weighs from 200 grams to 250 grams.

10. A golf club head comprising:

a main 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 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 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 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 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 golf club head comprising:

a main 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 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 golf club head according to claim 15 wherein the main 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 golf club head according to claim 15 wherein the weight body is composed of a tungsten alloy and weighs from 50 grams to 125 grams.

20. The golf club head according to claim 15 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.