Patent ID: 6220000
Filing Date: 2001-04-24
Classification: B65B

Abstract:
A device for packaging including a vertically aligned fill pipe, a funnel for feeding a fill material into the fill pipe, a forming shoulder for shaping a foil sheet into a foil tube to be filled, whereby the foil tube surrounds the fill pipe, an air-outlet nozzle defined in a space between the funnel and the fill pipe, and a mechanism connected to the air-outlet nozzle through a supply pipeline for producing a variable pressure air flow in order to create a downward air flow in the funnel and in the fill pipe, which air flow entrains the fill material to enable quick movement thereof through the funnel and the fill pipe into the foil tube, a format pipe surrounding said fill pipe, the air flow and entrained fill material moving downwardly throughout the length of said fill pipe, means for removing the air flow from the foil tube and the lower end of said fill pipe, and a measuring device for measuring an air flow pressure produced by said mechanism, said measuring device including an air flow pressure monitoring opening oriented at the lower end of the fill pipe and inside of the foil tube and a measured value indicator responsive to the pressure present at the pressure monitoring opening for controlling the air flow pressure at the lower end of the fill pipe and inside of the foil tube.