Golf irons
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United States of America Patent
Stats
-
Aug 22, 1989
Issued Date -
N/A
app pub date -
May 13, 1988
filing date -
Jun 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is disclosed a set of golf irons which have progressively decreasing displacements between the axis of the shaft and the center of mass projected to the horizontal plane beginning with the long irons and progressing to the short irons. Each iron in the set also has a support column behind the striking face, parabolic shaped horizontal grooves in the striking face with a top junction between the striking face and each groove, the top junction and groove sides defined by a segment of a parabola, the longest groove length in the striking face of each club proportional to the club displacement, and a flat segment on the sole.
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