07427239 is referenced by 54 patents and cites 9 patents.

A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (144) mounted in the club head (22), and a sleeve (146) mounted on a tip end (50) of the shaft (40). An exterior bottom end of the sleeve (146) has a castellated surface. An interior bottom end of the tube (144) has a matching castellated surface. The golf club (20) further includes a mechanical fastener (148) for removably securing the shaft (40) to the club head (22).

Title
Golf club with interchangeable head-shaft connection
Application Number
11/461227
Publication Number
7427239 (B2)
Application Date
July 31, 2006
Publication Date
September 23, 2008
Inventor
Denver Holt
Carlsbad
CA, US
Matthew T Cackett
San Diego
CA, US
Alan Hocknell
Carlsbad
CA, US
Agent
Elaine H Lo
Michael A Catania
Assignee
Callaway Golf Company
CA, US
IPC
A63B 53/02
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