Matched golf shafts and clubs
AssigneeCon-Sole Golf Corporation
InventorJoseph M. Braly
Life of this patent
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Abstract
Method of producing matched golf clubs comprises steps of determining under similar conditions frequency of each golf club shaft of plurality of shafts. Shafts are selected from plurality such that frequencies thereof fall on predetermined gradient formed by plot of shaft frequency and shaft length. Frequency increments between successive shaft lengths along gradient are substantially equal. Subsequent mating of shafts with selected club heads produces integrated and correlated matched golf clubs. Matched set of shafts and clubs is also described.
Claims7
A method of producing matched golf clubs comprising the steps of establishing a predetermined frequency gradient formed by a plot of shaft frequency and shaft length such that the gradient is a substantially straight line that increases as shaft length decreases and the frequency increments between successive shaft lengths along the gradient are substantially equal, determining under similar conditions the frequency of each golf club shaft of a plurality of shafts at each given shaft length, selecting a shaft at each given shaft length whose frequency falls on the predetermined gradient, and securing selected club heads to the selected shafts.
Matched golf club shafts comprising a series of at least four shafts of successive lengths, and each shaft of the series having a different but predetermined frequency that falls along a predetermined frequency gradient formed by a plot of shaft frequency and shaft length such that the gradient is a substantially straight line that increases as the shaft length decreases and the frequency increments between successive shaft lengths along the gradient are substantially equal.
Dependencies are inferred from the claim text.