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:
Aug. 08, 1995
Filed:
Apr. 01, 1993
Kenji Kobayashi, Tsubame-shi, Niigata-ken, JP;
Other;
Abstract
In order to enlarge a sweet area on a ball hitting surface of a golf clubhead, composite structures of two different specific gravities are utilized in addition to structural devices for fixing composite parts. The center of gravity of a golf clubhead is capable of being further distant from a face by utilizing said composite structures, for example, a balance weight fitted into a head body, a face fitted into a head body, a window-like hole provided in a head body etc. In the case of fitting a face into a head body, the specific gravity of said face is smaller than that of a head body, which is provided with a window-like hole, and/or a back crust therein, whereby golf clubheads with ultra wide sweet area can be obtained.