Membrane-sealed tube with a membrane-piercing cap

Details Membrane-sealed tube with a membrane-piercing cap Membrane-sealed tube with a membrane-piercing cap

B - Operations, Transporting

65

D

B65D 51/22 (2006.01)

Patent

CA 2192589

The invention seeks to improve the handling and user- friendly properties of a container (1), more particularly an adhesive-filled tube, comprising a membrane-sealed mouth (3) and a cannula (5) - with a bore (6) extending over its longitudinal axis - inseparably fixed to the mouth (3) and a closure cap (14) releasably fixed to the cannula (5) with a needle-like spike (23) which is guided for displacement in the bore (6) of the cannula (5) and which is held fixed by its head element (22) - thicker than its needle element (28) - in a starting position in a recess (18) of the closure cap (14) provided with an access opening (19) to the cannula (5) with the opportunity for axial displacement into an opening position piercing the membrane (4). In particular, the danger of adhesive issuing from the cannula after the membrane has been pierced was to be reduced. To this end, a closure element (29) is formed on the spike between the head element (22) and the needle element (28), bearing sealingly against the cannula outlet opening (11) in the membrane (4)-piercing opening position of the spike (23).

L'invention concerne un récipient (1), notamment un tube rempli de colle, qui comporte une bouche (3) et une canule (5) à passage (6) axial, fixée imperdable au niveau de la bouche (3), ainsi qu'un capuchon de fermeture (14) fixé amovible sur la canule (5). Le capuchon (14) comporte une broche (23) se présentant sous forme d'aiguille, introduite de manière à se déplacer dans le passage (6) de la canule (5). Grâce à sa tête (22) qui est plus épaisse que sa partie aiguille (28), cette broche (23) est maintenue fixée dans une position initiale, dans une cavité (18) du capuchon (14), dont le passage (19) mène dans la canule (5), de manière à pouvoir se déplacer dans le sens axial, dans une position d'ouverture qui lui permet de perforer la membrane (4). L'invention vise à améliorer le maniement et la facilité d'utilisation de ce tube, et notamment à empêcher la colle de couler par inadvertance hors de la canule, après perforation de la membrane. A cet effet, il est prévu un élément de fermeture (29) formé au niveau de la broche (23), entre la tête (22) et la partie aiguille (28), qui s'applique de manière étanche sur l'ouverture de sortie de la canule (11) lorsque la broche (23) est en position d'ouverture permettant de perforer la membrane.

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