Ventilation device for a drink bottle

摘要

The device (5) has a vent disc (6) with a first front side seated in a plane with a circumferential edge of the opening of the container (2) brought into engagement. A second face (12) extends from the bottle teats (4). The outer edge of the air washer is made in the direction of the opening and extends to a first section (13) and connects the first section to the first end face and extends toward the interior of the tank being open towards the second section (14). The second section has an area (14a), in which its cross section increases toward the interior of the container. An independent claim is included for a bottle.