B - Operations – Transporting – 26 – F
Patent
B - Operations, Transporting
26
F
B26F 1/18 (2006.01) B65D 41/34 (2006.01) B65D 55/02 (2006.01)
Patent
CA 2202492
A line of weakening (24) formed of spaced bridges (44) separated by slits (42) is formed in the skirt of a temperevident closure after the closure has been moulded. The line of weakening (24) is formed by a cutting operation using a knife blade (32) along the edge of which the closure is rolled without slipping. During the operation the snap-engagement band (20) of the closure is held in contact with the interior face of the skirt in transverse alignment with the knife blade (34) and the location of the line of weakening (24).
On façonne une ligne (24) d'affaiblissement composée de points de jonction (44) espacés les uns des autres et séparés par des fentes (42), sur la jupe d'un bouchage inviolable après moulage de celui-ci. On forme cette ligne (24) à l'aide d'une opération de coupe dans laquelle on utilise une lame (32) de couteau le long du bord de laquelle on fait rouler le bouchage, sans glissement. Lors de cette opération, la bande encliquetable (20) du bouchage est maintenue en contact avec la face intérieure de la jupe dans un alignement transversal par rapport à la lame (34) du couteau et à l'emplacement de la ligne (24) d'affaiblissement.
Carnaudmetalbox (holdings) Usa Inc.
Fetherstonhaugh & Co.
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