A system for controlling an electromechanical system comprised of a number of electromechanical devices such as solenoid operated valves, motor, relays and other devices. The control system is comprised of a central processing unit and control software plus suitable interface circuitry to convert the...http://www.google.com/patents/US5029065?utm_source=gb-gplus-sharePatent US5029065 - Control system for a sample preparation system
