Multiple ball feed unit for pinball machine

Amusement devices: games – Surface projectile game; game element – Ball games

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Details

273121D, A63F 734

Patent

active

057976007

ABSTRACT:
A pinball machine comprises a frame which carries a playfield, a chute and a driver for launching balls onto the playfield through the chute. A spent ball-receiving aperture in the playfield communicates with a sloped trough positioned under the playfield. The trough is of a length to hold a plurality of balls, preferably more than three balls. An upper end of the trough communicates with the aperture, while the lower end of the trough is positioned adjacent to and below the chute and the ball driver for launching. A solenoid or the like is positioned to vertically elevate the ball occupying the trough lower end, typically by striking it to cause the ball to fly to a new position in the chute for launching. Sensors are present to determine the number of balls in the trough. A microprocessor and other electronic means are present for actuating the solenoid or the like for vertically elevating the ball to the chute for launching. Balls may be automatically launched, being fed from the trough, in a manner responsive to events taking place on the playfield.

REFERENCES:
patent: 4508408 (1985-04-01), Clark
patent: 5002279 (1991-03-01), Kaminkow et al.
patent: 5048832 (1991-09-01), Kaminkow
patent: 5226653 (1993-07-01), Bil et al.
patent: 5358243 (1994-10-01), Eddy et al.
five (5) photographs of different views of a ball trough in a Gottlieb "Ice Review" pinball machine, circa 1950s-1960s.

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