Adjustable golf tee

Games using tangible projectile – Golf – Tee

Reexamination Certificate

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Details

C473S401000

Reexamination Certificate

active

07846044

ABSTRACT:
An adjustable golf tee with anchoring system that provides a simple adjustable golf tee for use on driving ranges. The general purpose of the present invention is to provide a new and simple adjustable golf tee that can be rotationally adjusted in height and contains a plurality of screw threads that add stability and durability to the golf tee. The inventive device includes an adjustable unit and a base supporting unit which contains a base and a planar bottom surface that can be embedded underneath a commercial mat of a driving range. The adjustable unit and base support unit contains a plurality of screw threads which provides stability, durability and allows for the adjustable unit to be rotationally adjusted in height, while retaining its user customizable height position despite enduring constant and repeated strikes from a typical golf club. The top end of the adjustable unit contains a concave structure to accommodate a golf ball and a lower end having an arrowhead or dome like structure. Optionally, the lower end has a plurality of washers, a circular shock absorber, and a metal ring. The base support unit has a threaded bore, bore, bore walls, a main cylinder, and a planar bottom surface which is preferably circular but can be of any configuration.

REFERENCES:
patent: 1413496 (1922-04-01), Sibbald
patent: 1779995 (1930-10-01), Trane
patent: 1936625 (1933-11-01), Goldman
patent: 2079387 (1937-05-01), Sickmiller
patent: 3406977 (1968-10-01), Voelkerding
patent: 3858878 (1975-01-01), Tassone
patent: D306751 (1990-03-01), Orton
patent: 5156403 (1992-10-01), Martino
patent: 5248144 (1993-09-01), Ullerich
patent: 6110060 (2000-08-01), Spoto
patent: 6328663 (2001-12-01), Lipstock
patent: 2006/0105859 (2006-05-01), Thirkettle et al.

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