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US 6,434,811 B1Granted
Weighting system for a golf club head
AssigneeCallaway Golf Company
InventorsRichard C. Helmstetter, Roger C. Cleveland, D. Clayton Evans, J. Andrew Galloway
Life of this patent
Estimating the term…
Abstract
A golf club head has a weight compartment within a hollow interior, and a weight member that is injected into the weight compartment subsequent to formation of the body of the golf club head. The preferred weight member is bismuth. The golf club head has a body that has a volume between 140 cubic centimeters and 350 cubic centimeters. The body of the golf club head weighs between 140 grams and 215 grams.
Claims5
A method for weighting a golf club head, the method comprising:
- orienting a body of a golf club head for introduction of a weighting material, the body having a sole, a striking plate, a detached crown, and a hollow interior with a weight chamber therein, the body oriented with the striking plate facing downward;
- injecting a flowable weight member into the weight chamber through a portal in the sole, the weight member weighing between 3 grams and 70 grams;
- and sealing the portal.
Dependencies are inferred from the claim text.