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:
Feb. 20, 1990
Filed:
Aug. 08, 1988
David D Boone, El Toro, CA (US);
Lynx Golf, Inc., City of Industry, CA (US);
Abstract
An improved golf club head having a face or ball striking surface comprising a plurality of dimples, punch marks or depressions each of which is at least 0.02 inches deep and which, in a preferred embodiment, is characterized by a cross-section of truncated conical shape having a planar base having a diameter of at least 0.04 inches and a curved upper portion for merging tangentially into the adjacent face surface to form a surface diameter of at least 0.06 inches. A large array of equally spaced depressions provide substantially constant friction or spin force on the golf ball irrespective of angular deviations of the face from perpendicularity with the ball striking direction of the club head at the point of impact. The inventive club head is particularly advantageous in high loft configurations such as a wedge.