Games using tangible projectile – Golf – Club or club support
Reexamination Certificate
1999-03-01
2001-10-16
Passaniti, Sebastiano (Department: 3711)
Games using tangible projectile
Golf
Club or club support
C473S321000
Reexamination Certificate
active
06302806
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a golf club, and more particularly to an improvement on the shaft of the golf club.
BACKGROUND OF THE INVENTION
The conventional golf club shaft is generally made of a carbon fiber material impregnated with epoxy resin and is tapered gradually from its butt end toward its tip end. In the process of making a golf club, a shaft is made in accordance with specifications. Thereafter, portions of the tip end and the butt end of the shaft are cut off so as to fasten respectively a head with the tip end, and a grip with the butt end, thereby resulting in a change in the flexing point of the shaft as well as difficulty in adjusting the position of center of gravity of the shaft.
SUMMARY OF THE INVENTION
It is therefore the primary objective of the present invention to provide a golf club shaft which can be effectively adjusted in the position of its center of gravity.
It is another objective of the present invention to provide a golf club shaft with a flexing point which is not susceptible to a change.
In keeping with the principle of the present invention, the foregoing objectives of the present invention are attained by a golf club shaft which is provided with a weighted segment located at the tip end thereof for lowering the position of center of gravity of the golf club shaft, a reinforced segment located near the butt end thereof, and a flexing segment located between the weighted segment and the reinforced segment for confining the position of the flexing point of the golf club shaft.
The foregoing objectives, features, functions, and advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.
REFERENCES:
patent: 5049422 (1991-09-01), Honma
patent: 5242720 (1993-09-01), Blake
patent: 5265872 (1993-11-01), Tennent et al.
patent: 5421574 (1995-06-01), Yamagishi
patent: 5427373 (1995-06-01), Kusumoto
patent: 5437450 (1995-08-01), Akatsuka
patent: 5512119 (1996-04-01), Takezawa
patent: 5620380 (1997-04-01), Tennent
patent: 5947839 (1999-09-01), Kusumoto
patent: 6063839 (2000-05-01), Oosedo
Blau Stephen L.
Browdy and Neimark
Passaniti Sebastiano
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