Patent ID: 7221115
Filing Date: 2007-05-22
Classification: G07F,H02P

Abstract:
1. The method of controlling a plurality of motors for stopping said motors at a home orientation wherein each of said motors has a first contact, a second contact, and an output shaft, said plurality of motors being configured in a grid having columns and rows with said first contacts of all of said motors in one of said column connected in parallel by a first wire to a first pole of a surface of electric power through a first switch and said second contacts of all of said motors in one of said row connected in parallel by a second wire to a second pole of said source of electric power through a second switch wherein one of said plurality of motors in a first column and in a first row is energized by closing said first switch of said first column and said second switch of said first row to direct electric power across said first contacts of said first column and across said second contacts of said first row, said method comprising the steps of: providing a switch on each of said plurality of motors wherein said switch has a first contact, a second contact, an open position, and a closed position, providing means on said output shaft of each of said plurality of motors for actuating said switch thereon when said shaft is at said home orientation, connecting said first contact of said switch to said first contact of said motors for each of said plurality of said motors, providing means for detecting a change in electric potential, connecting said second contact of said switches of each of said plurality of motors of said first row in parallel by a third wire to said means for detecting a change in electric potential wherein said means for detecting will detect a change in potential when said shaft of said one of said plurality of motors rotates to its said home orientation, and opening said first switch of said first column and said second switch of said first row when said detector detects said change in potential to stop further rotation of said one of said plurality of motors.