Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Chin-Dong Pai0
Date of Patent
May 13, 2008
Patent Application Number
11786502
Date Filed
April 12, 2007
Patent Primary Examiner
Patent abstract
A racket frame has a head hoop, a connecting segment, a handle and two prestressing devices. The head hoop has a bottom end and a string. The connecting segment is connected with the head hoop and has a yoke, two shafts and a throat. The yoke is formed on the bottom end of the head hoop. The shafts are respectively mounted with the yoke and each shaft has a mounting hole. The handle is connected with the connecting segment. The prestressing devices are attached to the shafts in the mounting holes.
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