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:
Jul. 23, 2013
Filed:
Dec. 22, 2009
Donald S. Bone, Carlsbad, CA (US);
Donald S. Bone, Carlsbad, CA (US);
Acushnet Company, Fairhaven, MA (US);
Abstract
A plurality of two or more golf club shafts designed to optimize the performance of a specific shaft with respect to a specific golf swing is disclosed herein. More specifically, the present invention discloses a plurality of two or more golf club shafts wherein a dramatic difference in torque can be achieved by two golf club shafts within the same weight classification regardless of the flex of the shaft. A plurality of golf club shafts in accordance with the present invention may generally a difference in weight-to-torque ratio of greater than about 1.5 and a difference in butt-frequency-to-torque ratio of greater than about 8.0 between any two golf club shafts within the plurality of golf club shafts.