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US 4,715,601 AGranted
Set of golf clubs and method of matching same
OwnerAnthony Lamannainventor
Life of this patent
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OwnerAnthony Lamannainventor
Estimating the term…
There is disclosed a design concept for a set of golf club irons including at least a first and a second club, wherein each club comprises a club head and a shaft. Each club head of the set includes a hosel portion to which the shaft is attached and a blade portion, with the blade portion including a substantially planar face for striking a golf ball and a back portion opposite said planar face. As with all iron clubs the substantially planar faces on the respective club heads of the set are disposed at varying angles with respect to a vertical datum line to provide progressive degrees of loft. In one preferred form the back portions of each club head of the set include a cavity formed therein, with the volume of the cavities in said clubs decreasing from the lower lofted clubs of said set to the higher lofted clubs. Further, the hosel length on said club heads increases from the lower lofted clubs to the higher lofted clubs of said set, such that the hosel length may be selected to provide a relatively uniformly located center center of mass for each club head in the set. The feature of varying hosel length and cavity size may be employed separately or in combination. Further, there is disclosed an iron club head design wherein the back portion of the blade includes a rib extending about the finished surfaces of said back portion, which rib can be ground off to adjust club head weight without damaging the club head finish.
A set of golf clubs including at least a first and a second club, each club comprising a club head and a shaft, each club head including a hosel portion to which the shaft is attached and a blade portion, said blade portion including, a substantially planar face for striking a golf ball and a back portion opposite said planar face, the substantially planar faces on the respective club heads of the set being disposed at varying angles with respect to a vertical datum line to provide progressive degrees of loft, such that the planar face on the first of said club heads is disposed at a lesser angle to said datum line than is the planar face on the second one of said club heads in said set, the back portions of each said first and second club heads including a cavity formed therein, and the cavity in said first club head being of a larger volume than the cavity in said second club head, with the volume of the cavities in said clubs decreasing from the lower lofted clubs of said set to the higher lofted clubs, and the length of the hosel portion on said first club being shorter than the hosel portion on said second club with the hosel length on said clubs increasing from the lower lofted clubs to the higher lofted clubs of said set, such that the hosel length may be selected to provide a relatively uniformly located center of mass for each club head in the set.
A set of golf clubs including at least a first and a second club, each club comprising a club head and a shaft, each club head including a hosel portion to which the shaft is attached and a blade portion, said blade portion including, a substantially planar face for striking a ball, and a back portion disposed opposite said planar face, said substantially planar faces on the respective club heads of the set being disposed at varying angles with respect to a vertical datum line to provide progressive degrees of loft such that the planar face on said first club head is disposed at a lesser angle to said datum line than is the planar face on the second one of said club heads in said set, the back portions of each said first and second club heads being provided with a cavity, extending along the length of the blade portion, the cavity in said first club head being of a larger volume than the volume of the cavity in said second club head with the volume of the blade cavities in the clubs of said set decreasing from the lower lofted clubs of the set to the higher lofted clubs whereby the mass of each club head can be distributed along the blade such that the lower lofted clubs can have a greater percentage of their mass allocated to the toe and sole portions of the club head.
A method of providing a set of golf clubs irons with a substantially uniform swing weight and a substantially uniform location of the blade for the center of mass for each club in the set, wherein the lower lofted clubs have lighter club heads and longer shafts than the higher lofted clubs, with the weight of the club heads increasing as the length of the shaft decreases from the lower lofted irons to the higher lofted irons, said method including the steps of:
Dependencies are inferred from the claim text.