A reseal with a partial perforation and method and apparatus...

B - Operations – Transporting – 65 – D

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B65D 41/20 (2006.01) A61J 1/00 (2006.01) A61J 1/20 (2006.01) B26D 3/08 (2006.01) B26D 7/14 (2006.01) B26F 1/00 (2006.01)

Patent

CA 2193970

A reseal (40) with a partially perforated membrane (108) is provided along with a method and apparatus for making such a reseal (40). In a preferred embodiment, the reseal membrane (108) is subjected to a tensile force, and a cutting edge of a lance (90) is advanced partially into the reseal membrane (108). More than one partial perforation can be provided in special configurations. Apparatus for providing a reseal membrane (108) with such a partial perforation includes a clamp assembly for clamping a periphery of the reseal, an anvil (80) for engaging one side of the reseal membrane (108), positioning mechanisms for effecting relative movement between the anvil (80) and clamp assembly to stretch the membrane (108), a lance (90) defining a cutting edge and a mounting structure for holding the lance adjacent the other side of the reseal (40), and a drive system for effecting relative movement between the lance (90) on the one hand and the anvil (80), clamping assembly, and reseal (40) on the other hand so as to effect partial penetration of the membrane (108) with the cutting edge of the lance (90).

On décrit un bouchon (40) de scellement possédant une membrane (108) partiellement perforée, un procédé et un dispositif de fabrication d'un tel bouchon (40). Dans un mode de réalisation préféré, on soumet la membrane (108) à une force de traction, et on introduit partiellement dans celle-ci un bord coupant d'une lancette (90). Il est possible de pratiquer plus d'une perforation partielle dans des configurations particulières. Le dispositif destiné à pourvoir ladite membrane (108) d'une perforation partielle comprend un ensemble de serrage destiné à serrer une périphérie du bouchon, une enclume (80) destinée à entrer en contact avec un côté de la membrane (108), des mécanismes de positionnement servant à effectuer un déplacement relatif entre l'enclume (80) et l'ensemble de serrage afin d'étirer la membrane (108), une lancette (90) définissant un bord coupant et une structure de montage destinée à retenir la lancette au voisinage de l'autre côté du bouchon (40) de scellement, ainsi qu'un système d'entraînement destiné à effectuer un déplacement relatif entre la lancette (90), d'un côté, et l'enclume (80), l'ensemble de serrage et le bouchon de scellement (40), de l'autre côté, de manière à effectuer une pénétration partielle de la membrane (108) à l'aide du bord coupant de la lancette (90).

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