B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 49/22 (2006.01) B05B 11/00 (2006.01) B26D 1/44 (2006.01) B26D 3/06 (2006.01) B26D 3/14 (2006.01) B26F 1/00 (2006.01) B26F 1/14 (2006.01) B65D 1/02 (2006.01) B65D 83/00 (2006.01) B29C 49/04 (2006.01)
Patent
CA 2302526
The receptacle consists of a stiff outer receptacle and an easily deformable inner bag resting on said outer receptacle, and is produced in a coextrusion- type blow molding process. The outer receptacle contains at least one pressure compensating opening through which air enters between the outer receptacle and the inner bag whenever receptacle contents is discharged, for instance, by means of a pump. The at least one pressure compensating opening is formed by the measure that a curved wall section of the outer receptacle is cut away by means of a rotating tubular knife or a hollow knife in such a manner that a hole is formed in the outer wall. During the cutting operation, which is carried out at a flat angle, the inner bag is not damaged, but pressed away inwardly.
Ce récipient (1) est constitué d'un récipient externe rigide (2) et d'une poche interne (3) facilement déformable qui lui est adjacente, et est réalisé par coextrusion-soufflage. Le récipient externe (2) comporte au moins un orifice d'égalisation de pression (7) par lequel l'air pénètre entre le récipient externe (2) et la poche interne (3) lorsque le contenu du récipient est par exemple délivré au moyen d'une pompe. Le ou les orifices d'égalisation de pression (7) sont formés au moyen d'une lame tubulaire (5) rotative ou d'une lame creuse (11) découpant une section de paroi arquée (6) du récipient externe (2) de manière à réaliser un trou (7) dans la paroi externe. Lors du processus de découpage exécuté à plat, la poche interne (3) n'est pas endommagée mais repoussée vers l'intérieur.
Dennison Associates
Gaplast Gmbh
LandOfFree
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