Receptacles – Compartmented container – Intercommunicable compartments
Patent
1999-11-10
2000-10-03
Pollard, Steven
Receptacles
Compartmented container
Intercommunicable compartments
220 427, 206221, B65D 2500
Patent
active
061260320
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a two-component container with two containers that are separate from each other and communicate with each other after the ejection of a stopper, wherein each container has a chamber for containing one component, with a thread on a neck of the one container and another thread which is connected to the other container, wherein the threads engage in one another and the one container can be screwed in relation to the other container in such a way that the stopper is pushed out of its retaining element.
DE-OS 37 22 371 has disclosed a two-component container of this type which is suited for separately containing a hair color and an oxidation agent. After the ejection of the stopper, these two components are mixed with each other in order to obtain an active hair color. An annular, circumferential bead is provided under the outer thread of the lower container on its neck in order to seal the two-component container so the active hair color cannot flow out.
The known two-component container has the disadvantage that the sealing action of the bead depends highly on the manufacturing precision of the bead and the components adjoining it, which increases the cost of the two-component container. On the other hand, active hair color can get in between the threads. And finally, an overpressure possibly occurring in the two-component container can be relieved toward the outside more or less well only as a function of the manufacturing tolerance.
The object of the invention is to embody a two-component container of the type mentioned at the beginning so that a favorable seal is produced even with a larger manufacturing tolerance and that in so doing, an overpressure can be reduced in a reproducible manner.
The object is attained according to the characterizing part of claim 1. According to it, an intermediary piece is provided between the containers, which rests with a support against the upper rim of the container, an annular connecting piece is connected to the upper container, and a sealing lip is provided on the connecting piece and rests between the connecting piece and the intermediary piece in such a way that the sealing lip can be deflected elastically outward by the intermediary piece in order to thereby produce a valve action.
The invention has the advantage that the two-component container is favorably sealed even with a larger manufacturing tolerance since the sealing lip rests in an elastically deflectable manner between the connecting piece and the intermediary piece and compensates for a more imprecise distance by means of its elasticity. An overpressure is reduced in a reproducible manner by means of the valve action of the sealing lip. Moreover, the active hair color cannot get between the threads since this is prevented by the sealing lip. The sealing lip can be formed onto the connecting piece and rest against the intermediary piece or vice versa.
If both the sealing lip and the region of the intermediary piece which rests against the sealing lip are embodied as annular and circumferential (claim 2), then the seal fulfills its function in a circumferential manner.
The further sealing of the two-component container is produced by a seal in the vicinity of the upper rim of the lower container, by means of which the intermediary piece is sealed in relation to the rim (claim 3).
In order to simply and reliably activate the two-component container, an ejector can be provided, which has at least one opening and is connected to the upper container, wherein the stopper can be ejected downward out of a retaining element of the intermediary piece in which the stopper sits by means of the resistance of the ejector (claim 4). After an ejection, product can flow through the opening as a result of which the components mix with one another.
The two-component container can be used particularly well for dispensing active hair color if its crushable zone occupies at least 50 percent of the total axial height of the container (claim 6). The modest height of the dividing zone between the individua
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Herzog Volker
Kohn Udo
Mayer Joerg
Steigerwald Franz
Pollard Steven
Striker Michael J.
Wella Aktiengesellschaft
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