A conveyor system for retaining an empty box thereon includes a conveyor assembly slidably adjustable on a frame. The conveyor assembly includes a set of rollers rotationally mounted on a support rail attached to the conveyor assembly. A corresponding set of rollers are rotationally mounted to another...http://www.google.es/patents/US6199681?utm_source=gb-gplus-sharePatente US6199681 - Conveyor system for overcoming the elastic springback in the flaps of an empty box
Conveyor system for overcoming the elastic springback in the flaps of an ...