Patent ID: 6705454
Filing Date: 2004-03-16
Classification: B65G

Abstract:
An accumulating power roll conveyor comprising:a first zone including a first set of rollers, a first actuator operably driving the first rollers, and a first part sensing member electrically connected to the first actuator; a second zone including a second set of rollers, a second actuator operably driving the second rollers, and a second part sensing member electrically connected to the second actuator; a third zone including a third set of rollers, a third actuator operably driving the third rollers, and a third part sensing member electrically connected to the third actuator; and a control circuit controlling the part sensing members and actuators based only on analog signals free of a programmable logic controller and free of a microprocessor; the second zone being located downstream of the first zone and the third zone being located downstream of the second zone.