Patent ID: 7076935

Claim:
A convertible computer controlled FFS (form, fill and seal) bagging machine comprising: film draw means for drawing a film sheet about a pouch former with said film sheet being folded and overlapped along longitudinally free edge portions; first sealing means for heat fusing said overlapped edge portions together to form a hollow film tube, said first sealing means comprising vertical sealing bar having a length; temperature control means for setting a temperature of said first sealing means; transverse sealing means for forming a transverse seal across said hollow film tube and synchronized with said first sealing means; pressure control means for setting a pressure of said first sealing means; content feed means for supplying a predetermined content in said hollow film tube at a pouch forming station thereof; computer inputting means for accepting a selection of predetermined programmed pouch sizes; and computer control means for controlling and synchronizing said film draw means, said first sealing means, said temperature control means, said pressure control means, said transverse sealing means, and said content feed means whereby to produce pouches of a predetermined programmed pouch size filled with a predetermined programmed content volume; wherein the computer control means simultaneously controls the pressure and the temperature of said first sealing means to apply a number of sealing applications to said overlapped longitudinal edge portions to progressively form a vertical seal along said overlapped longitudinal edge portions based on the selected predetermined programmed pouch size and the length of the vertical sealing bar.