Container for e.g. transport container in e.g. building, has tapping and threading with respective helicoidal screw gears whose sections have edges inclined inwards of tank, when cover is screwed on tank

摘要

The container has a tank (100) with an envelope having an opening including a tapping (110). A cover (200) has a closing wall extended by a threading (210) plating against the opening. The tapping and threading have respective helicoidal screw gears whose sections have edges inclined inwards of the tank, when the cover is screwed on the tank, for being opposed to a thrust force exerted on the cover by the pressure in the tank. The container has a joint (300) interposed between the tank and cover.