| 摘要 |
<p>A container arrangement (1) for removing and applying partial amounts of a liquid product (2), whereby an elastic inner container (3) for the product (2) and an elastic outer container (4) are received by an end piece (15). Manual pressure on the outer container causes an excessive air pressure to be created, acting upon the inner container in order to remove a partial amount of the product (2), whereby a removal channel (5) with an anti-backflow device (6) is also provided.(6) to prevent the product (2) from flowing back into the inner container (3). An air aspiration valve (7) is provided between the inner container (3) and the outer container (4) for exchanging the volume of a partial amount of product which is removed . The air aspiration valve (7) is embodied in the form of an elastic sealing ring (8) provided with an inner sealing lip (9) and is inserted into a peripheral groove (10) which is disposed on a end (11) of the neck of the outer container (4). The inner container (3) is provided with a flange (13) on one end (11) of the neck thereof. The lower side (14) of said flange presses the sealing ring (8) onto the groove (10) via the end piece. The sealing lip (9) rests on the lower side (14) of the flange in an elastic manner. The outer edge area (16) of the lower side (14) of the flange is provided with at least one channel which is joined to the outside atmosphere and which communicates with the sealing lip (9).</p> |
