A DEVICE AND A METHOD FOR GASEOUS-FLOW TREATMENT OF PACKAGES

摘要

An injection system for injecting gaseous media into the open end of a packaging container comprises a nozzle directing the gaseous media into the container. The injection system further comprises a shield arranged around the nozzle, and the shield has a shield opening facing the opening of the packaging container, as well as a cross sectional shape at the shield opening with dimensions being equal to or exceeding the corresponding dimensions of the of the packaging container at its opening facing the shield such that a slit may be created between the perimeter of said openings, the shield further comprising a circumferential slit in the end opposite to the shield opening.