FIELD: packaging industry.
SUBSTANCE: invention relates to a lid for metering the addition of aseptically filled into it liquid substance in the container (26) equipped with this lid, inside which there is the gas evolving liquid. The lid consists of a choke sleeve (1) and a rotating cap (2) which is screwed tightly on its upper part, and the choke sleeve (1) is equipped with a special cup (7), the dimensions of which match to the dimensions of the choke (5) of the corresponding container. In this cup or in the airtight capsules (17) located inside the cup there is a liquid substance. In the bottom of the cup there is an opening (9) which dimensions are calculated in such a manner that the aseptically packaged liquid located in the lid with the same pressure from above and below of the opening (9) does not flow out of it. If the rotating cap (2) is in the closed position, the opening (9) is hermetically sealed by the pin (16) located in the lower part of the rotating cap (2). When unscrewing the rotating cap (2), the pin (16) exits from the opening (9), at that tightness between the rotating cap and the choke sleeve (1) is maintained. When continuing to rotate the cap (2), it captures the choke sleeve (1) and is completely unscrewed from the container choke (5). Due to this pressure equalisation takes place between the inner compartment and the ambient air, and as a result the liquid flows through the opening (9) into the container (26).
EFFECT: according to the invention the lid consists of a minimum number of parts and, moreover, during the first opening of container it enables optically and acoustically to perceive the injection process of the substance in liquid in the container.
12 cl, 11 dwg
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Authors
Dates
2013-12-27—Published
2009-01-09—Filed