| US 7,497,787 B2 | ||
| Multiple material golf club head | ||
| James M. Murphy, Oceanside, Calif. (US); Herbert Reyes, Laguna Niguel, Calif. (US); Peter L. Sorocco, Carlsbad, Calif. (US); Matthew T. Cackett, San Diego, Calif. (US); J. Andrew Galloway, Escondido, Calif. (US); Richard C. Helmstetter, Rancho Santa Fe, Calif. (US); Augustin W. Rollinson, Carlsbad, Calif. (US); and Alan Hocknell, Encinitas, Calif. (US) | ||
| Assigned to Callaway Golf Club, Carlsbad, Calif. (US) | ||
| Filed on Oct. 30, 2007, as Appl. No. 11/928,043. | ||
| Application 11/566611 is a division of application No. 10/709254, filed on Apr. 23, 2004, granted, now 7,144,333. | ||
| Application 11/928043 is a continuation of application No. 11/845674, filed on Aug. 27, 2007. | ||
| Application 11/845674 is a continuation of application No. 11/566611, filed on Dec. 04, 2006, granted, now 7,387,577. | ||
| Application 10/709254 is a continuation of application No. 10/065871, filed on Nov. 26, 2002, granted, now 6,758,763. | ||
| Application 10/065871 is a continuation in part of application No. 09/906889, filed on Jul. 16, 2001, granted, now 6,491,592. | ||
| Application 09/906889 is a continuation in part of application No. 09/431982, filed on Nov. 01, 1999, granted, now 6,354,962. | ||
| Prior Publication US 2008/0064525 A1, Mar. 13, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. A63B 53/04 (2006.01) | ||
| U.S. Cl. 473—329 [473/342; 473/345; 473/349] | 11 Claims |
| 11. A golf club head comprising:
a metal component having a mass ranging from 50 grams to 110 grams; and
a non-metal component connected to the metal component, the non-metal component having a mass ranging from 10 grams to 60
grams;
wherein the golf club head has a mass ranging from 165 grams to 225 grams and a volume ranging from 290 cubic centimeters
to 600 cubic centimeters;
wherein a moment of inertia, Izz, about a Z axis of the center of gravity of the golf club head ranges from 2800 g-cm2 to 5000 g-cm2;
wherein a moment of inertia, Iyy, about a Y axis of the center of gravity of the golf club head ranges from 1500 g-cm2 to 2750 g-cm2;
wherein the golf club head has a coefficient of restitution ranging from 0.81 to 0.94.
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