Timer control for a washing machine ingredient dispenser

Claim 1

IN A LAUNDRY MACHINE HAVING A MAIN TIMER MEANS FOR CAUSING THE MACHINE TO FOLLOW A PREDETERMINED WASH CYCLE, A CONTROLLER FOR AN INGREDIENT DISPENSING DEVICE FOR LAUNDRY WASHING MACHINES COMPRISING A PLURALITY OF NORMALLY OPEN SWITCHES, EACH IN A CIRCUIT WITH A PLURALITY OF SOLENOID ACTUATED VALVES FOR INJECTING INGREDIENTS INTO SAID MACHINE, A CAM SHAFT; SEPARATE CAMS ON SAID CAM SHAFT FOR OPERATING EACH OF SAID SWITCHES; A MOTOR FOR ROTATING SAID CAM SHAFT; AND MEANS FOR SEQUENTIALLY RUNNING SAID MOTOR ONLY DURING CERTAIN PREDETERMINED PORTIONS OF TIME IN THE WASHER CYCLE TO CAUSE THE INJECTION OF INGREDIENTS INTO SAID WASHER DURING SAID PORTION OF TIME, SAID MEANS INCLUDING A CAM ON SAID SHAFT TO STOP THE MOTOR AFTER A PREDETERMINED PERIOD OF OPERATION AND A SWITCH MEANS RESPONSIVE TO SAID MAIN TIMER MEANS AT A PREDETERMINED TIME IN THE WASHING CYCLE TO START SAID MOTOR.