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US 5,470,072 AGranted
Golf practice device
OwnerTom Cunninghaminventor
Life of this patent
Estimating the term…
Abstract
A golf practice device and method are described whereby bright colored light sources are affixed to a shaft, head or other part of the device, in such manner that the light sources appear to trace out one or more visual distinct patterns during a swing. The degree to which the patterns overlap and the colors appear to merge indicates the degree to which the user is swinging the device in a preferred manner.
Claims7
A golf practice device comprising
- a shaft;
- a plurality of bright light sources having visually distinguishable colors, said light sources coupled to said shaft and positioned such that when said shaft is grasped by a person and swung as a golf club, said light sources are sufficiently bright to leave an after-image in the eyes of said person, and can be viewed by said person as tracing out distinct color patterns which visually distinguish a square swing from a non-square swing.
An improved golf club having a head, said improvement comprising:
- a plurality of bright light sources having visually distinguishable colors attached to said head and aligned relative to each other such that when said club is swung with a square swing by a golfer, said light sources trace individual arcs which appear to said golfer as distinct superimposed visual patterns having a color which is a combination of the various colors of said individual arcs, and when said club is swung with a non-square swing, said light sources trace arcs which appear to said golfer as distinct non-superimposed visual patterns.
Dependencies are inferred from the claim text.