There is provided a system that automatically delivers, monitors and replenishes a string of packaging cushions to hoppers located at multiple packing stations through an elongated cushion delivery duct having a series of intermediate outlets to permit the string of cushions to drop into the hopper located...http://www.google.es/patents/US6996955?utm_source=gb-gplus-sharePatente US6996955 - System for conveying packaging cushions
