Dispensing – With lock or fastening seal – Inhibiting operation of flow controller or closure
Patent
1997-12-31
1999-08-24
Kaufman, Joseph A.
Dispensing
With lock or fastening seal
Inhibiting operation of flow controller or closure
222529, 222530, 2225419, B67D 506
Patent
active
059414251
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a container closure having a lower closure element, and a closure cap placed on the pouring spout of the lower closure element, wherein the closure cap has a cover and, formed thereon, a cap casing with at least one shoulder, and wherein the lower closure element has at least one counter-element for child-proofing, which cooperates with the shoulder to form a snap-on connection.
2. Description of Prior Art
A container closure of this type is taught, for example, by German Patent Publication DE 42 09 784 C2.
In such container closures, the elasticity of a bellows connected to the pouring spout is used for forming the child-proofing. To this end, counter-elements are formed on the bellows, which counter-elements form a snap-on connection in combination with the shoulders of the closure cap. To undo this child-proofing, the closure cap, which is designed as a screw cap, must be removed from the pouring spout. This is accomplished by the user depressing the bellows in the area of the counter-elements by hand. Consequently, the counter-elements are disengaged from the shoulders and the blocking of the screw cap is released, so that it can be unscrewed from the pouring spout.
Thus, two different manipulations must be performed simultaneously to release the child-proofing, namely depressing the bellows and unscrewing the screw cap. This manipulation cannot be performed by a child, so that the material in the container is secure from unauthorized access.
SUMMARY OF THE INVENTION
It is an object of this invention to provide a container closure of the type mentioned hereinabove which can be easily operated while simultaneously preventing unauthorized access by a child.
This and other objects of this invention are attained by the closure cap having force introduction means for introducing a pulling or pushing force (F), which pulling or pushing force is introduced into the lower closure element by force transfer means. A transition piece enables the lower closure element to maintain the counter-element at a distance from the line of force of the force introduced into the lower closure element, so that the counter-element, which can be elastically displaced in respect to the shoulder, can be deflected.
A force is introduced into the closure cap by the force introduction means, for example a handle. This force, in turn, is introduced into the lower closure element. As a result, the counter-element is maintained at a distance from the line of force of the force introduced into the lower closure element and it is possible to create a torque which at the end causes the displacement of the counter-element in relation to the shoulder. The snap-on connection is, thus, released, so that the closure cap can be removed, for example unscrewed. Such a child-proofing is easily operated. It can preferably be operated using only one hand, because the pulling or pushing movement is superimposed on the removal movement of the closure cap. However, the function of securing against unauthorized access remains.
In accordance with one embodiment of this invention, the pouring spout of the lower closure element is provided with an exterior thread, which constitutes the force transfer means in combination with an interior thread of the closure cap. The transition piece, which is embodied as a circumferential ring, is elastically formed on the cylindrical pouring spout, and, in its area facing away from the pouring spout, the transition piece supports several counter-elements, which are disposed at an equal distance from each other. The closure cap is, thus, embodied as a screw cap, which can be screwed off the exterior thread of the pouring spout. Because the force transfer means are constituted by the interior thread of the closure cap and the exterior thread of the pouring spout, a space-saving construction is possible with a small expenditure. A large force can be transferred by mean of the threads. Consequently, it is also possible to adjust the required
REFERENCES:
patent: 4422563 (1983-12-01), Babiol
patent: 4442949 (1984-04-01), Dwinell et al.
patent: 5078288 (1992-01-01), Fuchs
patent: 5566864 (1996-10-01), Stolz
patent: 5678735 (1997-10-01), Guglielmini
Heinrich Stolz GmbH & Co. KG
Kaufman Joseph A.
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