Patent ID: 6571537
Filing Date: 2003-06-03
Classification: B65B

Abstract:
A method for rejecting a filter bag for infusion products in a manufacturing machine, the method comprising the steps of:feeding the filter bag along a production line to a plurality of work stations installed sequentially along the production line, wherein assembly of the filter bag is completed by attaching a connecting string and a pick-up tag to the filter bag; detecting and inspecting the filter bag during completion of assembly; feeding the filter bag to an intermediate pick-up station, wherein an end portion of the filter bag is picked up by the intermediate pick-up station and transferred to a subsequent stacking station for forming stacks of a predetermined number of the filter bags; disabling the feeding of the filter bags to the stacking station when one of the filter bags is determined to be defective during inspection; and rejecting and expelling the defective filter bag, wherein the disabling step comprises deforming the defective filter bag by folding the end portion of the defective filter bag to prevent the defective filter bag out of the reach of the intermediate pick-up station so as from being picked up by the intermediate pick-up station and moved toward the stacking station.