Games using tangible projectile – Golf – Club or club support
Reexamination Certificate
2006-12-12
2006-12-12
Blau, Stephen (Department: 3711)
Games using tangible projectile
Golf
Club or club support
C473S332000, C473S345000, C473S346000, C473S350000
Reexamination Certificate
active
07147571
ABSTRACT:
The present invention relates to a set of golf club irons in which some of the club heads have a hollow space, and some of the club heads do not have a hollow space. The hollow space is preferably defined by a lower portion of the front face, a portion of the sole, and a rear wall. The presence of the hollow space moves the club head center of gravity back (away from the face) and down (toward the sole), making it easier to get a golf ball airborne. The volumes of the hollow spaces generally transition or get progressively smaller with an increase in the club loft angle, thus altering the center of gravity location and moments of inertia by different amounts for different clubs. The hollow spaces may be empty or filled, in whole or part.
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Best Christopher B.
Roach Ryan L.
Acushnet Company
Bingham & McCutchen LLP
Blau Stephen
LandOfFree
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