Patent ID: 6286569
Filing Date: 2001-09-11
Classification: B65B

Abstract:
In a packaging apparatus for dispensing particulate material from a supply source into outgoing packaging cartons, for removing particulate material from incoming cartons containing same, and for returning the material to the supply source for reuse, having a work table for supporting outgoing cartons and incoming cartons, the work table being formed with open spaces for permitting the passing of spilled and overflow material and the material from incoming cartons by the upending of the same, a receiving container positioned below the work table for receiving the material passing therethrough, and a conduit system in air flowing communication between the supply container and the receiving container, the improvement including;a transition container positioned below the work table in material flow communication with the receiving container being arranged for receiving material therefrom,a vacuum producing system in communication between said transition container and the conduit system being arranged for producing vacuum conditions in said transition container and said conduit system for conveying material received therein and into the conduit system for return to the supply container, said transition container including a valve device arranged for selectively introducing air therein during said vacuum conditions for producing air turbulence within said transition container and thereby facilitating the drawing of the material from the transition container and into the conduit system during transporting to the supply container.