Dispensing – With cutter and/or punch – To form dispensing opening in container
Patent
1997-10-15
1999-12-14
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
060005785
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a bottle body and to a bottle which are intended to contain a fluid product, and to a method for manufacturing such a bottle.
Bottle bodies, formed of a single piece of injected plastic, of the type which have an open rear end to allow them to be filled with a fluid product, and a narrowed front end forming a neck, are known in the prior art.
Prior to the filling operation, the neck is generally sealed by an attached membrane which is intended to be pierced when the bottle is put into actual use.
Some of these bottles are intended to contain a sterile product, for example an eye ointment.
When the neck is being sealed using the membrane, foreign bodies can enter the body of the bottle and can thus contaminate that the product that the body is intended to contain.
SUMMARY OF THE INVENTION
The purpose of the invention is to provide a bottle which is intended to be filled with a fluid product, and making it possible to limit, as much as possible, the number of operations needed for filling the bottle so as to limit the risk of contamination.
The subject of the invention is therefore a bottle body of the aforementioned type, characterized in that it comprises a tearable transverse membranae formed integrally with the body and sealing the front end region of the body.
The bottle according to the invention may have one or more of the following features: membrane can be torn; especially a four-pointed star; can be moved axially in the neck between a standby position and an active position for piercing the membrane under the command of a manipulating member connected to the rest of the bottle by frangible means for tamperproofing and for keeping the piercing means in the standby position; be moved axially with respect thereto after the tamperproofing means have been removed, the cap has a surface for resting against a surface disposed opposite thereto and belonging to the piercing means, and the piercing means are formed of an end piece mounted on the free end of the neck and through which a duct passes longitudinally for the flow of a fluid product, the end piece comprising a stem for tearing the membrane and extending into the neck; collar formed on an exterior surface of the bottle, and the cap has a similar lip on its inside; two relative axial positions; positioning the end piece comprising successive means of 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.
The invention also relates to a pre-assembled bottle, comprising a bottle body made of injected plastic. The bottle body has an open rear end, a narrowed front end and a neck sealed by a tearable transverse membrane. Also provided is an end piece which can be moved axially in the neck between a standby position and an active position for piercing the membrane and through which a duct passes longitudinally for a fluid product to flow along. Also, a cap is provided which goes over the neck and has tamperproofing means keeping the end piece in the standby position.
Another subject of the invention is a method of producing a bottle, characterized in that the method comprises: opposite end forming a neck, an end piece through which a duct passes longitudinally for fluid product to flow along, and a cap; the neck in such a way that the end piece can be moved axially in the neck between a standby position and an active position for piercing the membrane, and covering the neck using the cap which is connected to the body of the bottle by frangible means for tamperproofing and maintaining the end piece in the standby position; welding it.
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 depicts a perspective view in partial section of a pre-assembled bottle constructed in accordance with the present invention;
FIG. 2
REFERENCES:
patent: 3029987 (1962-04-01), Gronemeyer
patent: 5042690 (1991-08-01), O'Meara
Carnaudmetalbox Sante-Beaute
Maust Timothy L.
Walczak David J.
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