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:
Sep. 01, 1998
Filed:
Mar. 06, 1997
Applicant:
Inventor:
Jung-Ho Cheng, Taipei, TW;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ;
U.S. Cl.
CPC ...
228157 ; 228190 ;
Abstract
A golf club head formed by a combined 'superplastic forming and diffusion bonding' method. The basic procedures are using three titanium sheets and machining shallow cavities into one of the sheets, which later provides the reinforcing function. Applying stop-off to the area where diffusion bonding is not desired and then sealing the three sheets by welding along their peripheries together with two gas supply tubes. The assembly then is placed into a die and a gas supply is attached. After vacuuming and heating up, the assembled part is subjected to subsequent diffusion bonding and superplastic inflation processes which yield a titanium golf club head with an internally strengthened striking face.