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. 04, 1997
Filed:
Jan. 16, 1996
Kenji Kobayashi, Tsubame, JP;
K. K. Endo Seisakusho, Tsubame, JP;
Abstract
An iron or putter golf club head which enables the enlarging of a sweet area. In a peripheral portion of a back 2a of a head body 11a made of titanium alloy is formed an embedding groove 13a. Into the embedding groove 13a is press-fitted a balance weight 12a of beryllium copper alloy. The balance weight 12a has an integral extention 16a extending down to a sole of the head body 11a. After the press-fitting process, a cavity 18a is formed in an area of the back 2a surrounded by the balance weight 12a by milling. Owing to the annular balance weight and the cavity provided at the back 2a, the weight distribution of the head is capable of being greatly concenterated on the peripheral portion of the head. In addition, the above extension 16a enables the lowering of the center of gravity of the head body 11a, thus providing a golf club head with which balls are capable of being easily controlled.