Method and apparatus for controlling a bowling ball lift mechani

Details Method and apparatus for controlling a bowling ball lift mechani Method and apparatus for controlling a bowling ball lift mechani

1987-11-13

1988-09-13

Oechsle, Anton O.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

318484, 361196, A63D 502

Patent

active

047704179

ABSTRACT:
Method and apparatus for controlling and operating the return ball lift mechanism in a bowling alley. In a preferred embodiment the motor which drives the lifting belt is normally inoperative and it is actuated when a ball arrives to be lifted into the storage rack. A photo detector is utilized to detect the presence of the returning ball and provision is made to actuate the motor for a total of four seconds. In the event a second ball arrives before the end of four seconds, timing begins all over again. A feature of the invention is the elimination of a centrifugally operated switch to control the START winding of the motor as a solid state timer controls the operation of both windings of the motor.

REFERENCES:
patent: 2417092 (1947-03-01), Smith
patent: 2664290 (1953-12-01), Swift
patent: 2852765 (1958-09-01), Dumas
patent: 3094328 (1963-06-01), Neville, Jr. et al.
patent: 4140220 (1979-02-01), Hazeltine et al.
patent: 4350337 (1982-09-01), Knauer et al.
patent: 4378114 (1983-03-01), Sargent
patent: 4724506 (1988-02-01), Isawa

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