C-shaped golf club head

• US 7,520,820 B2
• Filed: 12/12/2007
• Issued: 04/21/2009
• Est. Priority Date: 12/12/2006
• Status: Active Grant

• Current Assignee: Callaway Golf Company
• Original Assignee: Callaway Golf Company
• Inventors: Dimarco, Thomas J.
• Primary Examiner(s): Passaniti; Sebastiano
• Application Number:
  US11/954,422
• Publication Number:
  US 20080139336A1
• Time in Patent Office: 496 Days
• Field of Search: 473324-350, 473287-292, 473/256, D21/733, D21/759, D21/734, D21/735
• US Class Current: 473/334
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 2209/023 Long, oriented fibres, e.g. wound filaments, woven fabrics, mats
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0412 Volume
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0466 wood-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence

Abstract

A C-shaped golf club head is disclosed herein. The body has a striking plate wall, a crown section, a sole section and a rear wall. The golf club head also has a plurality of weight members positioned on the rear wall of the body. Each of the plurality of weight members is movable along the rear wall.

Claims

1. A golf club head comprising:

a body having a generally C shape when viewed from above with the generally C shape defined by a front elongated section having a heel end arm extending rearward from the front elongated section and a toe end arm extending rearward from the front elongated section, the body having a striking plate wall, a crown section, a sole section and a rear wall; and

a plurality of weight members positioned on the rear wall, each of the plurality of weighted members movable along the rear wall, wherein the plurality of weight members is composed of four weight members, with two of the weight members each movably connected along a crown and sole axis, and two of the members each movably connected along a heel to toe axis.

2. The golf club head according to claim 1 wherein the body has a volume ranging from 420 cubic centimeters to 470 cubic centimeters.

3. The golf club head according to claim 1 wherein the body is composed of a material selected from the group consisting of titanium, titanium alloy, steel, magnesium, magnesium alloy, aluminum, aluminum alloy, pre-preg material, thermoplastic polyurethane, and polycarbonate.

4. The golf club head according to claim 1 wherein each of the plurality of weight members ranges in mass from 10 grams to 40 grams.

5. The golf club head according to claim 1 wherein each of the plurality of weight members ranges in mass from 15 grams to 30 grams.

6. The golf club head according to claim 1 wherein the golf club head has mass ranging from 190 grams to 220 grams.

7. The golf club head according to claim 1 wherein the golf club head has a moment of inertia Izz about the center of gravity ranging from 4000 g-cm² to 5000 g-cm².

8. The golf club head according to claim 1 wherein the golf club head has a moment of inertia Iyy about the center of gravity ranging from 2000 g-cm² to 4000 g-cm².

9. The golf club head according to claim 1 wherein the golf club head has a moment of inertia lxx about the center of gravity ranging from 2000 g-cm² to 4000 g-cm².

10. The golf club head according to claim 1 wherein the striking plate wall has variable face thickness.

11. A golf club head comprising:

a body having a front elongated section, a heel end ann and a toe end arm, the front elongated section having a striking plate wall and a rear wall, the heel end arm having a rear wall, an external side wall and an internal side wall, the toe end arm having a rear wall, an external side wall and an internal side wall;

a first plurality of weight members positioned on the rear wall of the front elongated section, each of the plurality of weighted members moveably connected along the rear wall;

at least one second weight member positioned on the rear wall of the heel end arm and moveably connected along a crown to sole axis; and

at least one third weight member positioned on the rear wall of the toe end arm and moveably connected along a crown to sole axis.

12. The golf club head according to claim 11 wherein each of the first plurality of weight members, the second weight member and the third weight member ranges in mass from 5 grams to 60 grams.

13. The golf club head according to claim 11 wherein each of the first plurality of weight members, the second weight member and the third weight member ranges in mass from 10 grams to 40 grams.

14. The golf club head according to claim 11 wherein each of the first plurality of weight members, the second weight member and the third weight member ranges in mass from 15 grams to 30 grams.