The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 2003
Filed:
Jul. 26, 2002
Matthew T. Cackett, San Diego, CA (US);
D. Clayton Evans, San Marcos, CA (US);
Frank H. Fan, Carlsbad, CA (US);
Alan Hocknell, Encinitas, CA (US);
Richard C. Helmstetter, Rancho Santa Fe, CA (US);
Callaway Golf Company, Carlsbad, CA (US);
Abstract
A golf club having products of inertia Ixy, Ixz, and Iyz with absolute values below 100 g-cm is disclosed herein. The golf club has a large volume, a high moment of inertia, or both. Preferably, the moment of inertia, Izz, of the golf club head about a vertical axis Z through the center of gravity ranges from 3000 g-cm to 5000 g-cm , and a moment of inertia, Iyy, about a horizontal axis Y through the center of gravity of the golf club head ranges from 1900 g-cm to 2050 g-cm . Preferably, the golf club head is composed of plies of pre-preg sheets. The volume of the golf club head preferably varies form 300 g-cm to 600 g-cm .