05026056 is referenced by 103 patents and cites 37 patents.

A correlated set of golf clubs of the iron type is disclosed in which each club head has a cavity formed in the back surface thereof with specially configured weight pads formed integrally within the back cavity. The weight pads are so configured and positioned within the confines of the back cavity as to create desired heel-toe balancing of each club head wherein each club head's center of gravity physically centered, both horizontally and vertically of the club head, behind the visually-perceived optimal striking point. i.e., the apparent visual center of percussion, of the golf club's striking face relative to the golf ball at address. In the preferred embodiment the configured weight pads are so varied in size and position throughout the set of correlated golf clubs heads as to consistently maintain, for each head, the club head's center of gravity directly behind and in alignment with the club's apparent visual center of percussion.

Title
Weight-balanced golf club set
Application Number
96731
Publication Number
5026056
Application Date
August 17, 1989
Publication Date
June 25, 1991
Inventor
John B Hoeflich
Arlington Heights
IL, US
Robert F McNally
Hinsdale
IL, US
Assignee
Tommy Armour Golf Company
IL, US
IPC
A63B 53/04
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