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US 7,396,290 B2Granted
Iron-type golf clubs
AssigneeAcushnet Company
InventorsPeter J. Gilbert, Bruce R. Pettibone, Michael Scott Burnett
Life of this patent
Estimating the term…
Abstract
A set of iron-type golf clubs includes long irons with cavity back configurations and short irons with muscle back configurations. The rear face configurations slowly transition from pure cavity back through cavity-muscle backs to pure muscle backs for increased performance continuum for the set. Additional design parameters for the set may also be systematically varied through the set, such as face area, loft angle, offset and location of the center of gravity.
Claims19
A set of iron-type golf clubs comprising:
- at least one cavity back club;
- at least one muscle back club;
- and
- wherein at least one club design parameter is systematically varied through the set, and the set comprises at least three clubs, wherein a club head face area (FA) for each club is in accordance with
- FA=α*(0.01*LA+4.71)
- wherein LA is a loft angle measured in degrees, FA is face area measured in in2, and α ranges from about 0.8 to about 1.2.
3 more elements
Dependencies are inferred from the claim text.