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. 29, 1995
Filed:
Jan. 26, 1993
Terry V Pearce, Sandy, UT (US);
Tony M Pearce, Alpine, UT (US);
Edo Sports, Inc., Salt Lake City, UT (US);
Abstract
A structure and method for producing golf club heads from fiber reinforced plastic is described. A long fiber reinforced thermoplastic material is used to injection mold the golf club head. The long fiber reinforced thermoplastic material provides three-dimensional strength and stiffness. The long fiber reinforced thermoplastic material is injected into a mold so that the fibers become entangled with each other. Entangled fibers provide increased strength and stiffness in more than a single direction. A sole plate and face plate are also provided. Because of the strength and rigidity of the material used to fabricate the golf club head, the face plate may be fabricated from materials not otherwise useable. A flexible thermoplastic foam block is positioned in the interior of the golf club head to prevent rattle and to provide a realistic wood sound when hitting a golf ball. The sole plate includes a hole formed therein at an appropriate location and a clear plastic window is positioned in the hole so that the cosmetically desirable characteristic of viewing the end of the golf club shaft through the bottom of the golf club when the shaft is installed can be readily obtained. The golf club head has the desirable characteristics of heads made from traditional materials with the advantages obtainable using plastic without the heretofore unavoidable disadvantages of low strength and stiffness encountered previously when using plastic materials.