Closable opening device for sealed package containing flowing medium, comprises spout fitting with cylindrical pipe section, flange, inner threading and outer threading, where cylindrical cutting element is provided with multiple recesses

摘要

The closable opening device (1) comprises a spout fitting with a cylindrical pipe section, a flange, an inner threading (23) and an outer threading. A cylindrical cutting element is provided, whose lower edge is provided with one or multiple teeth and whose inner surface is provided with attachments protruding in radial direction. The cylindrical cutting element has multiple recesses (36) on its upper edge, which are uniformly divided around the circumference and mirror-inverted ring wall sections (46) are formed at the top surface (40) in a screw cap for the recesses.