An apparatus for forming, filling and sealing a pre-formed bag has a top sheet and a bottom sheet. The bag has a leading edge seal, a trailing edge seal, a bottom edge seal and an open top edge with an upper portion extending therefrom. The apparatus includes a back plate, a slotted front plate...http://www.google.fr/patents/US5673541?utm_source=gb-gplus-shareBrevet US5673541 - Apparatus and method for forming, filling and sealing a bag
Apparatus and method for forming, filling and sealing a bag
