Iron golf club heads and golf club sets with variable weight...

Details Iron golf club heads and golf club sets with variable weight... Iron golf club heads and golf club sets with variable weight...

2011-07-05

2011-07-05

Blau, Stephen L. (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S350000

Reexamination Certificate

active

07972222

ABSTRACT:
Described herein are iron golf club heads and sets of iron golf clubs that have variable weight distribution. Each iron golf club head has a cavity and a groove with a raised portion disposed therein. The groove and the raised portion can deepen the center of mass depth and lengthen the effective face length of the iron golf club. The width of the groove may vary between each golf club in a set of iron golf clubs, such that the width of the groove of the long irons is greater that the width of the groove of the middle irons, and the width of the groove of the middle irons is greater than the width of the optional groove of the short irons. Other aspects, embodiments, and features are also claimed and discussed.

REFERENCES:
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patent: 2003/0203763 (2003-10-01), Best
patent: 2005/0085312 (2005-04-01), Nagai et al.
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patent: 2008/0058119 (2008-03-01), Soracco et al.
patent: 2009/0042664 (2009-02-01), Stites et al.
patent: 2009/0062032 (2009-03-01), Boyd et al.

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