Alignment system

Details Alignment system Alignment system

1989-04-04

1990-05-29

Grieb, William H.

Amusement devices: games

Puzzles

Take-aparts and put-togethers

273183E, 33286, A63B 6936, A63B 5304

Patent

active

049289713

ABSTRACT:
A visual alignment system is disclosed for use in golf clubs, especially putters, which allows for easy and rapid alignment of the golf club with the invisible line for the ball to travel. An indicia is placed on the top surface of the club, at a right angle to the club face at the point of impact, and a second indicia at right angle to the first indicia line parallel to the face of the club. At the intersection of the two indicia lines, a conical cavity occurs, with the apex of the cavity at the intersection point, and the indicia lines continue down the walls of the depression meeting at the apex. When the lines in the depression are viewed from above, alignment will be determined if the intersecting lines are at right angles.

REFERENCES:
patent: 3548504 (1970-12-01), Sykes
patent: 4032156 (1977-06-01), Clarke
patent: 4043562 (1977-08-01), Shillington
patent: 4136877 (1979-01-01), Antonious
patent: 4340229 (1982-07-01), Stuff, Jr.
patent: 4458900 (1984-07-01), Antonious
patent: 4461482 (1984-07-01), Bojicic
patent: 4722528 (1988-02-01), Tsao

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