Amusement devices: games – Aerial projectile game; game element or accessory therefor... – Target
Patent
1991-07-31
1993-02-09
Marlo, George J.
Amusement devices: games
Aerial projectile game; game element or accessory therefor...
Target
434252, 283117, A63B 6936, A63B 5700
Patent
active
051848171
ABSTRACT:
Most golf greens slope, which causes balls that are putted on them to follow curves, rather than moving in straight lines. An heuristic visual device is provided to assist a golfer in estimating how a putted golf ball will "break" on a sloping green. The invention provides graphic representations of trajectories of putted golf balls rolling on greens that slope solely along principal directions (i.e. front-to-back and right-to-left). A golfer, who must initially estimate how the green on which he is planning to putt actually slopes in the two principal directions, can metally combine those graphically represented putting trajectories in order to estimate the effects of gravity and thereby to predict his proper `line of play`. In a preferred embodiment, a transparent substrate, which has putting trajectories from a green that slopes solely from front to back printed on its top surface and putting trajectories from a green the slopes solely from left to right printed on its bottom surface, is used to facilitate the golfer's mental process of superimposing those trajectories to arrive at a net estimated trajectory.
REFERENCES:
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patent: 3679206 (1972-07-01), Shambaugh
patent: 3820786 (1974-06-01), Candor
patent: 4137447 (1979-01-01), Smith
patent: 4824114 (1989-04-01), Catalano
patent: 4984791 (1991-01-01), Labell
patent: 5014994 (1991-05-01), Peters
Greenreader Inc.
Kiewit David
Marlo George J.
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