| US 7,578,756 B2 | ||
| Multiple material golf club head | ||
| Matthew J. Erickson, San Diego, Calif. (US); Bradley C. Rice, Carlsbad, Calif. (US); D. Clayton Evans, San Marcos, Calif. (US); and Evan D. Gibbs, Carlsbad, Calif. (US) | ||
| Assigned to Callaway Golf Company, Carlsbad, Calif. (US) | ||
| Filed on Nov. 17, 2008, as Appl. No. 12/272,098. | ||
| Application 12/272098 is a continuation of application No. 11/928255, filed on Oct. 30, 2007, granted, now 7,452,287. | ||
| Application 11/928255 is a continuation of application No. 11/841284, filed on Aug. 20, 2007, granted, now 7,462,109. | ||
| Application 11/841284 is a continuation of application No. 11/423589, filed on Jun. 12, 2006, granted, now 7,258,630. | ||
| Application 11/423589 is a continuation of application No. 10/907085, filed on Mar. 18, 2005, granted, now 7,059,973. | ||
| Prior Publication US 2009/0069115 A1, Mar. 12, 2009 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. A63B 53/04 (2006.01) | ||
| U.S. Cl. 473—342 [473/345; 473/350] | 4 Claims |
| 1. A driver-type golf club head comprising:
a body composed of a titanium alloy material, the body comprising a face and sole section wherein the body has a length ranging
from 3.5 inches to 4.5 inches and a width ranging from 4.0 inches to 5.5 inches; and
an epoxy-based composition positioned at a face-sole junction of the body, the epoxy-based composition having a mass ranging
from 3.0 grams to 10.0 grams and extending from 2.0 inches to 3.5 inches along a heel to toe direction of the face-sole junction;
wherein the driver-type golf club head has a volume ranging from 290 cubic centimeters to 600 cubic centimeters;
wherein the driver-type golf club head has an amplitude level of less than 118 decibels when impacting a golf ball at a swing
speed ranging from 80 MPH to 130 MPH.
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