STOPPER FOR A CONTAINER NECK

摘要

A stopper is disclosed. The stopper includes a tubular skirt, designed to surround a container neck and including, on either side of a weakening line, a removable skirt portion, inwardly provided with means for removable fastening to the neck, and a non-removable skirt portion, inwardly provided with a retaining strip permanently around the container neck. The strip comprises an annular main body whereof a first end is turned opposite the removable skirt portion and integral with the non-removable skirt portion, while a second end is provided to axially abut against a bulge of the container neck and to be radially inserted between the bulge and the skirt.

主权项

1. A stopper for a container neck, including a generally tubular skirt which:
is designed to surround the container neck, is provided with a peripheral weakening line adapted to be broken a first time the stopper is opened, and includes, on either side of the weakening line, along an axis of the skirt,
a removable skirt portion, inwardly provided with removable fastening means for removable fastening the removable skirt portion to the container neck, anda non-removable skirt portion, inwardly provided with a retaining strip for permanently retaining the non-removable skirt portion around the container neck, the retaining strip comprising a main body which is generally annular and which, in a usage configuration of the retaining strip,is substantially centered on the axis of the skirt,includes a first axial end, which is turned opposite the removable skirt portion and which is secured to the non-removable skirt portion, andincludes, opposite the first end of the main body, a second axial end which:
in the inner radial portion of the second end, delimits free axial abutment surfaces against which an associated bulge of the container neck is intended to abut to retain the non-removable skirt portion around the container neck the first time the stopper is opened, the abutment surfaces being distributed along an inner periphery of the main body of the retaining strip, andin the outer radial portion of the second end, bears protruding tongues which are intended to be radially inserted between the bulge and the skirt, the tongues being distributed along an outer periphery of the main body, while being separated in pairs by a free space through which a cleaning liquid for cleaning the container neck circulates between the abutment surfaces and the outer face of the retaining strip, wherein the abutment surfaces are separated in pairs by a recess, that is formed in the inner face of the main body of the retaining strip, without emerging transversely in an outer face of the main body, and by which a cleaning liquid for cleaning the container neck circulates between the first end of the main body and the abutment surfaces.