Patent ID: 7674187
Filing Date: 2010-03-09
Classification: A63B

Abstract:
1. A golf club comprising: a golf club head having a volume ranging from 400 cubic centimeters to 470 cubic centimeters, a mass ranging from 210 grams to 250 grams, a moment of inertia about the Izz axis through the center of gravity of the golf club head ranging from 4700 grams-centimeters squared to 6000 grams-centimeters squared, and a coefficient of restitution ranging from 0.81 to 0.94; a shaft connected to a heel end of the golf club head, the shaft having a mass ranging from 50 grams to 90 grams; and a grip disposed on a butt end of the shaft, the grip having a mass ranging from 30 grams to 50 grams; wherein the golf club has a length ranging from 42 inches to 44 inches; wherein the golf club has an inertia ratio of the Izz moment of inertia of the golf club head about the Z axis through a center of gravity of the golf club head divided by a golf club Iyy moment of inertia of the entire golf club taken at the butt end of the shaft that is greater than 0.00230.