Multichamber container

Details Multichamber container Multichamber container

1988-04-14

1989-10-24

Moy, Joseph Man-Fu

Special receptacle or package

For mixing

215DIG8, B65D 2508

Patent

active

048755770

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The invention relates to a multichamber container which has no compressed gas and includes an outer and an inner container for pourable substances which are to be kept separate, whereby the substances may be combined inside the container for the purpose of extracting a mixture of substances.
Such containers are known in the most varied embodiments and have the disadvantage that they are complex in construction, awkward to handle and difficult to assemble.
It is known from U.S. Pat. No. 4 024 952 to provide a threaded rotatable cap which lifts off the separating lid with a great force by means of a counter screw connection of the inner container for the purpose of combining substances.


SUMMARY OF THE INVENTION

The object of the invention is to provide an improved multichamber container which has no compressed gas. It is another object of the invention to provide a container which is simple to handle, has secure inner container sealing means and is simple to assemble automatically, and which container permits the substances to be combined using a minimum force when the rotating cap is rotated slightly.
This and other objects of the invention are attained by a multichamber container having no compressed gas therein and comprising an outer container and an inner container each containing a pourable substance, wherein the substances are to be kept separate but to be extracted from the multichamber container as a mixture of the substances, the substances being combined inside the container, said outer container having an upper side; a rotatable cap; and a catch joint, the upper side of the outer container being connected to said rotatable cap with positive locking by said catch joint; said inner container having an open end at an upper side thereof, said cap having an inner side, said open end at the upper side of the inner container being connected to said inner side of the cap with positive locking and in a non-rotational and axially detachable manner; the inner container having at least one projection on an outer wall thereof; the outer container having at least one projection on an inner wall thereof; said at least one projection of said inner container and said at least one projection of said outer container being formed in such a way that they come to communicate with one another by an axial turning of said cap to cause the inner container to be axially detachable from the cap; the cap being provided with a sealable extraction on the upper side.
The combining of the substances contained in the multichamber container for the purpose of producing a mixture of substances is advantageously achieved by the provision of projections on one side of the inside wall of the outer container, the projections communicating with the projections of the outer wall of the inner container, which are disposed on diametrically opposed sides, in such a manner that when the cap is turned, the projections are axially displaced and thus the inner container is released from the cap connection and falls into the outer container with its contents. By shaking the multichamber container, it is possible to obtain a homogeneous mixture of substances via the loose inner container. The cap seal is opened in order to remove this mixture.
According to requirements, the projections can have various shapes, e.g. the outer container projections have a horizontally oriented plane on the lower side, but the inner container projections have a radial, oblique plane on the upper side, or the outer container projections have an oblique plane on the lower side, and the inner container projections have a radial, horizontal plane on the upper side.
In an alternative embodiment of the projections, the outer container projections have symmetrically wedge-shaped oblique planes on the lower side, but the inner container projections have a horizontal plane on the upper side, whereby any rotational direction of the cap is possible for the separating operation. The same applies if the outer container projections have a horizonta

REFERENCES:
patent: 3508680 (1970-04-01), Hollis

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