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:
May. 04, 1999
Filed:
Jan. 20, 1998
Applicant:
Inventors:
Robert B Zider, Portola Valley, CA (US);
John F Krumme, Tahoe City, CA (US);
Assignee:
Beta Golf, Inc., Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A63B / ;
U.S. Cl.
CPC ...
473324 ; 473331 ; 473342 ;
Abstract
A golf club head is provided with an impact surface formed of a shape memory alloy. The shape memory alloy is selected to have a transformation temperature applicable for the range of normal golf playing temperatures, that is in the range between about 0 and 15 degrees C. This selection of the transformation temperature of the impact surface provides an effective variation of the stiffness of the golf club head that compensates for changes of the stiffness of a golf ball with changing temperatures.