Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 17, 2010
Patent Application Number
11710522
Date Filed
February 26, 2007
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for manufacturing a hollow golf club head is disclosed, wherein a metallic main frame provided with a top opening and a bottom opening, a metallic crown plate and a metallic sole plate are prepared. The sole plate is placed in the bottom opening. A die is inserted into the inside of the main frame through the top opening. A protrusion of the sole plate is crushed onto the edge portion of the main frame around the bottom opening, by the use of the inserted die. Then the top opening is closed by the crown plate. The specific gravity SGm and proof stress YSm of the main frame, the specific gravity SGs and proof stress YSs of the sole plate, and the specific gravity SGf of the face plate satisfy: SGf=<SGm<SGs and YSs<YSm.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
