Machine and method for making substantially air-free sealed...

Details Machine and method for making substantially air-free sealed... Machine and method for making substantially air-free sealed...

B - Operations, Transporting

65

B

226/15

B65B 1/00 (2006.01) B65B 31/06 (2006.01)

Patent

CA 1170632

Abstract of the Disclosure Flexible pouches filled with product are advanced to a steaming station where steam from a steam nozzle is directed downwardly toward the pouches to drive air therefrom. A vacuum nozzle is inserted downwardly within the steam nozzle and into each pouch at the steaming station, the upper end portion of the pouch is closed around the nozzle and then a vacuum is drawn through the nozzle to evacuate the air in the pouch. The top of the pouch is sealed immediately after the vacuum nozzle is retracted out of the pouch and while steam is still being directed downwardly toward the pouch to prevent air from re-entering the pouch.

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