Golf club head with high moment of inertia

• US 7,413,519 B1
• Filed: 12/14/2007
• Issued: 08/19/2008
• Est. Priority Date: 03/09/2007
• Status: Active Grant

• Current Assignee: Callaway Golf Company (Topgolf Callaway Brands Corp.)
• Original Assignee: Callaway Golf Company (Topgolf Callaway Brands Corp.)
• Inventors: Hocknell, Alan, Vincent, Brandon T., Dawson, Patrick
• Primary Examiner(s): Kim; Gene
• Assistant Examiner(s): Hunter; Alvin A
• Application Number:
  US11/957,155
• Publication Number:
  US 20080220893A1
• Time in Patent Office: 249 Days
• Field of Search: None
• US Class Current: 473/345
• 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 53/0416 Heads having an impact surface provided by a face insert
• 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 golf club head having a high moment of inertia is disclosed herein. The golf club head preferably has a volume ranging from 450 cubic centimeters to 475 cubic centimeters, a mass ranging from 180 grams to 225 grams, and a length ranging from 4.0 inches to 5.0 inches. The golf club head preferably has a moment of inertia, Iyy, about the center of gravity of the golf club head ranging from 2000 grams-centimeters squared to 4000 grams-centimeters squared. Preferably, the first 10% of the golf club head has at least 40% of the mass of the golf club head.

Claims

1. A golf club head comprising:

a body having a front wall, a crown wall, a sole wall, a heel wall, a rear wall, and a toe wall, the body defining a hollow interior;

wherein the golf club head has a volume ranging from 450 cubic centimeters to 475 cubic centimeters;

wherein the golf club head has a mass ranging from 180 grams to 225 grams;

wherein the golf club head has a length as measured from the forwardmost extent of the front wall to a rearward most extent of the rear wall ranging from 4.0 inches to 5.0 inches;

wherein the golf club head has a moment of inertia, Iyy, about the center of gravity of the golf club head greater than 4000 grams-centimeters squared;

wherein the golf club head is partitioned into a first section, a second section and a third section, the first section extending rearward from the front wall 10% of the length of the golf club head, the third section extending forward from the rear wall 10% of the length of the golf club head as measured from the front wall to the rear wall, and the second section positioned between the first section and the third section, wherein the first section has at least 40% of the mass of the golf club head.