Patent ID: 6016200
Filing Date: 2000-01-18
Classification: B07C,B65G

Abstract:
A method for detecting toppled packages, the packages lying on a conveyor that transports the packages past an apparatus, the apparatus comprising an upper pair of photocells and a lower pair of photocells, each pair of photocells comprising a light beam transmitter and a light beam receiver, the method comprising the steps of:a) forming a connection between the lower pair of photocells and the upper pair of photocells;b) transmitting a signal from the lower pair of photocells to the upper pair of photocells when the lower light beam is broken;c) transmitting a signal from the upper pair of photocells to a valve actuating device when the upper light beam is broken;d) actuating a removal device with the valve actuating device; ande) removing the fallen package from the conveyor with the removal device.