Dispensing – With cutter and/or punch – To form dispensing opening in container
Patent
1997-10-06
1999-11-30
Walczak, David J.
Dispensing
With cutter and/or punch
To form dispensing opening in container
222 81, 222 835, 22215306, 22215307, 2225412, 2225414, B67D 500
Patent
active
059926929
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a bottle of the type comprising a hollow body intended to contain a product and which has an end forming a neck, a tearable transverse membrane sealing the neck, and means for tearing the membrane. The means can be moved axially in the neck under the control of a manipulating member between a standby position and an active position for tearing the membrane.
When the bottle is used for the first time it is necessary to tear the membrane, and this is generally achieved using a relatively pointed axial element which can be moved in a direction more or less parallel to the axis of the neck in order to allow product to flow through the neck.
In order to be certain that an orifice of sufficient size is formed in the membrane to allow adequate flow of the fluid, it is necessary to insert the pointed element relatively deeply into the neck, and in particular into the body containing the product.
SUMMARY OF THE INVENTION
The purpose of the invention is to provide a bottle that makes it possible to reliably tear the membrane with only a small movement of the means for tearing.
The subject of the invention is therefore a bottle of the aforementioned type, characterized in that the membrane has a weakened region delimiting in the membrane at least one displaceable flap, and a flap-articulation region situated between at least two radially outermost ends of the weakened region. The means of tearing comprises a member for pushing the flaps by resting against a region of the flap that is close to the articulation region.
The bottle according to the invention may have one or more of the following features: points of which star delimit, in pairs, in the membrane, flaps the width of which increases radially towards the periphery of the membrane; neck and through which a duct passes longitudinally for the fluid product to flow along, the end piece includes a stem for tearing the membrane and the stem extend into the neck and defines the circular edge at its free end; increases progressively towards the edge; two relative axial positions; positioning the end piece includes successive means for snap-fastening between at least one collar and at least one catch which are situated on the external face of the neck and on the internal face of the skirt; connected to the rest of the bottle by frangible means for tamperproofing and keeping the pushing member in the standby position, it is possible for the cap to be moved axially with respect to the neck after the tamperproofing means have been removed; interacts with a collar formed on the external surface of the bottle body, and the cap has a similar lip on an interior surface thereof.
BRIEF DESCRIPTION OF THE DRAWINGS
Other features and advantages of the invention will become clear from the following description given by way of a non-limiting example with reference to the attached drawings in which:
FIG. 1 is a perspective view in partial section of a pre-assembled bottle constructed in accordance with the present invention;
FIG. 2 is a schematic view in transverse section and on a larger scale of the neck of the bottle of FIG. 1;
FIG. 3 is a sectional view taken on section line 3--3 of FIG. 2;
FIG. 4 is a schematic view on a larger scale of part of an end piece and of a membrane of the bottle shown in FIG. 1;
FIG. 5 is a cross sectional view of an axial section of the bottle of FIG. 1 illustrating tearing of the membrane.
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, a pre-assembled bottle 10 has a hollow body 12, which is intended to received a sterile fluid product. The bottle also includes an end piece 14 and a cap 16. The unit as a whole has an overall axis of symmetry X--X which is assumed to be vertical.
The hollow body 12 has an open lower and rear end 18 to allow it to be filled, and a narrowed upper and front end which forms a neck 20. The end piece 14 is fitted on the upper end of the neck 16 and the cap 16 covers the end piece.
The body 12 furthermore comprises a transverse membrane 22 fo
REFERENCES:
patent: 2698113 (1954-12-01), Linton
patent: 3029987 (1962-04-01), Gronemeyer
patent: 5642838 (1997-07-01), Stoody
patent: 5664705 (1997-09-01), Stolper
Carnaudmetalbox Sante Beaute
Maust Timothy L.
Walczak David J.
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