05776011 is referenced by 245 patents and cites 38 patents.

A metalwood golf club head is provided by attaching three distinct stamped pieces: a face and hosel piece, a crown piece and a bottom piece. The hosel of the face and hosel piece has a diameter and a narrowed section adjacent the heel, the narrowed section having a width from the toe to heel direction which is less than the diameter of the hosel. The bottom piece includes a threaded opening for threadably coupling a removable weight which may be selected from a set of removable weights, with each removable weight in the set having a different weight. Weighting is provided on a rear surface of the face, and may take the form of either a plurality of concentric masses or a spiral mass extending rearwardly from the rear surface of the face.

Title
Golf club head
Application Number
8/723234
Publication Number
5776011
Application Date
September 27, 1996
Publication Date
July 7, 1998
Inventor
Phil Chang
Walnut
CA, US
Charles Su
Taiwan
CN
Agent
Raymond Sun
Assignee
Echelon Golf
CA, US
IPC
A63B 53/04
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