05013041 is referenced by 69 patents and cites 19 patents.

A golf club head has a pair of parallel longitudinal chambers running thereacross behind the face plate. A set of weight members having various weights is provided. Such weight members are selectively installed in the chambers to vary the center of gravity of the club head both horizontally and vertically to modify the driving action of the club as may be desired.

Title
Golf driver with variable weighting for changing center of gravity
Application Number
7/468087
Publication Number
5013041
Application Date
January 22, 1990
Publication Date
May 7, 1991
Inventor
Wen J Tai
Kaohsiung
TW
Donald J C Sun
San Diego
CA, US
Agent
Edward A Sokolski
Assignee
Cipa Manufacturing Corporation
TW
IPC
A63B 53/04
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