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:
Oct. 23, 1990
Filed:
Jan. 30, 1990
Yamaha Corporation, , JP;
Abstract
In construction of a composite type iron club head for golf having a fiber reinforcement, a synthetic resin backup is used as a substitute for the conventional ring for holding the fiber reinforcement in postion, thereby improving productivity and inertia moment of iron clud head. The fiber reinforcement, which can be of solid or hollow construction, and the synthetic resin back up are disposed in a recess provided on the side of the club head remote from the shooting surface. A mass can be adjustably imbedded in the synthetic resin backup so as to increase the inertial moment of the club head. A rise member extending upwardly from the sole face of the clud head can also be provided so that the center of gravity can be more easily adjusted. Undercuts can also be provided about the periphery of the recess to further facilitate the fixing of the fiber reinforcement within the recess and to provide additional fiber reinforcement in the peripheral sections of the club head. To further provide additional fiber reinforcement in the peripheral sections of the club head, a plano-concave surface can be provided on the side of the club head remove from the shooting surface.