Games using tangible projectile – Golf – Tee
Reexamination Certificate
1999-08-13
2001-12-11
Wong, Steven (Department: 3711)
Games using tangible projectile
Golf
Tee
C473S398000
Reexamination Certificate
active
06328663
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a golf ball tee and more particularly to a simple and improved golf ball tee which is vertically adjustable by a telescopic mechanism utilizing two adjustable support units in order to accommodate golfers at driving ranges who tee up at different heights.
2. Background of the Invention
A standard rubber golf tee is fixed in length at driving ranges throughout the country. Height positioning of the tee is usually limited and attempts have been made to accommodate golfers who tee up at different heights both on the golf course and at driving ranges. Adjustable golf ball tees penetrating into the ground (see U.S. Pat. Nos. 3,467,390 and 4,516,780) and those with flat-bottom bases (see U.S. Pat. Nos. 1,803,907; 2,079,387; 5,248,144; and D306,751) have been developed. Adjustable golf tees have also been incorporated onto larger devices designed for automatic teeing (see U.S. Pat. Nos. 5,411,267 and 5,415,409). Still, limitations in height positioning exist in the prior art adjustable golf tee structures due to the impact the tee structures must endure. The present invention attempts to overcome this limitation by incorporating two adjustable support units into a simple golf tee structure, in contrast to the prior art structures which accommodate only a single adjustable structure, increasing the flexibility of height adjustment and durability of the present invention.
SUMMARY OF THE INVENTION
The present invention provides a simple adjustable golf ball tee for use on driving ranges. The general purpose of the present invention, which will be described subsequently in detail, is to provide a new and simple golf ball tee that is durable and adjustable in height by employing two adjustable units.
The adjustable units are supported by a base which is embedded under a commercial mat of the driving range. The first adjustable unit extends from the center of the base through an aperture of the base. The second adjustable support unit is placed within the first adjustable unit. The base and first adjustable units can have any shape and not necessarily the same shape. The lower end of the second adjustable unit has an arrowhead structure slightly larger than the aperture of the first adjustable unit from which it extends, and a concave structure at the top end to accommodate a golf ball thereon. Thus, the present invention provides increased flexibility to adjust the height of the golf ball tee by utilizing two support units adjustably mounted onto a base.
The present invention resides not in any one of these features, but rather in the particular combination of these features herein disclosed and claimed. This particular combination distinguishes the present invention from the prior art for the functions specified.
The present invention provides an adjustable golf ball tee which preferably has two adjustable units that allow adjustment in height by a telescopic mechanism.
The present invention also provides an adjustable golf ball tee which is durable and is able to endure repeated striking with a golf club.
The present invention further provides an adjustable golf ball tee that is simple in structure and therefore easy to manufacture.
The present invention also provides an adjustable golf ball tee that can be manufactured at low cost with synthetic material such as rubber or with thermoplastic material, which will endure repeated striking with a golf club.
Other embodiments of the adjustable golf ball tee will become apparent from the following description with reference to the accompanying drawing herein.
REFERENCES:
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patent: 5766100 (1998-06-01), Dilmore
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patent: 6083121 (2000-07-01), Hovey
patent: 6086486 (2000-07-01), Murphy et al.
Corless Peter F.
Dike Bronstein Roberts & Cushman IP Group
Hazzard Lisa Swiszcz
Wong Steven
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