SAFETY VENTED COVER FOR SEALED CONTAINER AND METHOD OF MANUFACTURING SAME

摘要

A method of making a safety vent in a cover for a hermetically sealed container and a product comprising a unique container cover for a hermetically sealed container including printing a material strip with a masking resist pattern having an uncovered channel area corresponding to a safety vent area for the container cover and etching the uncovered area to a preselected material thickness to provide a safety vent membrane in the cover capable of withstanding a preselected pressure before rupture.