Dispensing – Movable material discharge guide – Swingable
Patent
1994-03-07
1995-01-17
Kashnikow, Andres
Dispensing
Movable material discharge guide
Swingable
222548, 220253, B67D 300
Patent
active
053819349
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to closures for tubes and, more particularly, to a tube closure using a spherical element.
2. History of the Prior Art
There are many known closures or closure caps for tubes or similar containers with original condition protection means, such as, for example, the following patents: EP A2 460 557 and EP A1 459 941. Further, there are known tube closures which need not be completely unscrewed or pulled off in order to enable the content of the tube to be squeezed out. In the case of such known solutions, the closure, which has a hole in the center, is screwed on by one or more rotations. In doing so, the edge of said hole lifts off a pin, which closes it after it is screwed on. This opens an annular gap through which the contents of the tube, or of the container in general, runs out or is actively squeezed out.
If only small quantities were to be taken from the tube, then this solution was not found to be acceptable because, in the case of a salve or a cream exiting from an annular opening a tube forms having a shape of little stability and, therefore, permitting no clear determination as to the amount having exited. The disadvantage of most of the known closures intended to preserve the original condition, (the two cited European patent applications are representative for a large number of similar solutions ), lies mainly in their spatial complexity. Some of them provide predetermined rupture links of a sometimes very complex nature, and some require that original condition protection strings are torn or stretched, making it necessary to assemble the closure from several very complicated parts. This requires either several or very complicated molded parts, which make the product expensive. The problem to be solved with the present invention is the creation of a closure for tubes or soft plastic bottles, which needs not be fully unscrewed to allow the contents to be squeezed out, and which can be connected in a simple way with a closure preserving the original condition.
SUMMARY OF THE INVENTION
The present invention relates to a tube closure. More particularly, one aspect of the invention relates to a closure for a tube which need not be removed for releasing the contents of the tube. The tube is formed with a shoulder which becomes narrower in the direction of the tube neck to which shoulder in the region neck has a cam attached. The tube neck has an exterior collar which is closed at its face except for an eccentrically disposed opening. In the face of the tube neck a member consisting of at least one spherical segment is present, which is displaced relative to the opening by a predetermined angle. A closure cap is utilized and the closure cap is divided into an inner cylindrical part, an exterior, essentially cylindrical part, and an upper closure plate. An angular groove and collar are shaped in such a way that the closure cap can be pressed over the tube neck, thus stretching the inner cylindrical part of the closure cap. The closure plate contains an opening which, in one position of the closure cap, will be located above the member which consists of at least one spherical element and which is shaped in such a way that it is closed by this member and then a closure plate has at the lower edge of its essentially cylindrical portion a recess which, by means of the cam, is positioned at the shoulder and which is so wide that the closure cap can be turned through an angle while the cam limits its rotation in either side.
BRIEF DESCRIPTION OF THE DRAWINGS
For a more complete understanding of the present invention and for further objectives and advantages thereof, reference may now be had to the following detailed description when taken in conjunction with the accompanying drawings herein:
FIGS. 1a and 1b illustrate a first embodiment of the present invention shown as a cross section in FIG. 1a and a top plan view in FIG. 1b;
FIG. 2 illustrates a phantom presentation of the first embodiment of the present invention;
REFERENCES:
patent: 2780395 (1957-02-01), Schlabach et al.
patent: 3104039 (1963-09-01), Dike
patent: 3261516 (1966-07-01), Allen
patent: 3447725 (1969-06-01), Armour
patent: 3563368 (1971-02-01), McHugh
patent: 4444328 (1984-04-01), Glass
patent: 4488668 (1984-12-01), Flaska et al.
Combitool AG
Derakshani Philippe
Kashnikow Andres
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