Packaging method for packaging machine involves injecting high pressure air into chamber after creating vacuum in chamber

摘要

Containers with covers are introduced into a chamber. The chamber is closed and a vacuum is created in the chamber to obtain equal pressure in the interior of the chamber and the interiors of the containers. High pressure air is injected to the interior of the chamber for the pressure in the interiors of the containers to be less than the pressure in the interior of the chamber. An independent claim is also included for a packaging machine.