Games using tangible projectile – Golf – Tee
Reexamination Certificate
1999-01-21
2001-01-23
Wong, Steven (Department: 3711)
Games using tangible projectile
Golf
Tee
C473S392000
Reexamination Certificate
active
06176794
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a golf tee, i.e. a device for supporting a golf ball above the surface of the ground when driving the golf ball; and more particularly, a golf tee which supports the golf ball with its center of gravity displaced from that of the tee upon which it rests in such a way as to facilitate improved driving of the ball.
BACKGROUND OF THE INVENTION
The conventional golf tee places in one vertical line the center of gravity (CG) of the golf ball, the center of the depression in which the ball rests atop the tee, and the central line of the stem of the tee. The ball is balanced between gravity and the upward force of the rim of the tee depression, which exerts force on the ball uniformly around its rim. There is no predisposition to motion in any one direction.
A number of prior patents show golf ball supports of various types. Although these provide some improvements over the classic tee, the prior art constructions do not provide any functional improvement in the initial balance of the ball prior to club impact. If the tee is inclined to displace the ball's center of gravity, the amount of inclination is either insufficient or the ball has a tendency to topple the tee. Many of these are also expensive.
Conventional tees which perfectly balance the ball do not use the potential of inclination.
SUMMARY OF THE INVENTION
It is an object of the present invention to overcome deficiencies in the prior art, such as indicated above.
It is another object to provide an improved golf ball tee of low cost which, when made of plastic, is easily formed by injection molding.
It is a further object of the present invention to provide a golf ball tee which induces a powerful shot indirectly at impact, facilitates guiding of the ball along the desired path, controls the desired trajectory, and also performs regular tee functions.
These and other objects of the invention are achieved by the construction and use of a dual-inclination golf ball tee having its ball seat inclined from the horizontal plane an amount up to 15°, with the top part of the tee further banked at an angular inclination from the vertical axis up to 60°.
Due to the dual inclination the golfer is able to generate increased forces when he drives the ball, because of the positioning of the ball on the tee. The inclination of the ball-supporting surface causes the weight of the golf ball to locate to the lower side toward the direction from which the golf club head is approaching, and places the ball in optimum position for rotational, gravitational, and translational forces to act upon it when the square face of the driver impacts the ball.
In addition, the inclination of the ball-supporting stem from the vertical axis relocates the center of gravity of the ball, from a position directly above the main stem of the tee as is conventional, to a position offset from the main stem of the tee so as to minimize drag effects and thus maximize the transfer of energy directly from the club head to the ball.
REFERENCES:
patent: 1554721 (1925-09-01), Getchell
patent: 1595130 (1926-08-01), Wilcox
patent: 1800647 (1931-04-01), Krafft
patent: 1942672 (1934-01-01), Thompson
patent: 2082811 (1937-06-01), Thorup
patent: 2107706 (1938-02-01), Morgan
patent: 2155803 (1939-04-01), Rider
patent: 2469928 (1949-05-01), Mursch
patent: 3907289 (1975-09-01), Bondu, Sr.
patent: 4192504 (1980-03-01), Clugage
patent: 4328969 (1982-05-01), Wright
patent: 5683313 (1997-11-01), Disco et al.
patent: 6004228 (1999-12-01), Adam
Browdy and Neimark
Wong Steven
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