Pool table ball return controller

摘要

A pool table ball controller is programmable to vary time, cost, and other parameters relating to money-operated pool tables. A piano-hinge-type guard retains the balls and is operated by an electric motor driving a linkage to raise and lower the guard. Since the electric motor can be stopped in the lowered position, timed pool play can be selected so that the balls will continue to return to the user rather than being retained. The controller can be used to select between timed and rack play for a user of the pool table or may be moved into a programming mode wherein operators of the table can set time parameters relating to length of time for timed play and costs for both timed and rack play. In addition, diagnostic and other messages are displayed on an LCD screen. The controller also allows for programming in periods of time wherein cost and time are varied and when limits may be placed on time play and also periods when either timed or rack play are prohibited.