Check valve for vacuum packing bags

Details Check valve for vacuum packing bags Check valve for vacuum packing bags

B - Operations, Transporting

65

D

B65D 30/24 (2006.01) F16K 15/02 (2006.01) B65D 81/20 (2006.01)

Patent

CA 2501515

A check valve (100, 200) for vacuum packing bags, installed on a suction nozzle (2) of a packing bag (1) to discharge air from the bag 1 to the outside. The check valve (100, 200) comprises: a valve body (10, 210) including a hole (11, 211) formed at a central of a bottom of the valve body (10, 210), an inner space defined within the valve body (10, 210) above the hole (11, 211) and a projected section (14, 214) for being inserted into the suction nozzle (2), the projected section (14, 214) being reduced in diameter as extended away from the hole (11, 211); and means for opening and closing the hole (11, 211) installed in the inner space of the valve body (10, 210).

L'invention concerne un clapet anti-retour (100, 200) pour sachets de conditionnement sous vide, installé sur une buse d'aspiration (2) d'un sachet de conditionnement sous vide (1) pour évacuer l'air du sachet (1) vers l'extérieur. Le clapet anti-retour (100, 200) comprend: un corps du clapet (10, 210) muni d'un orifice (11, 211) ménagé sur une partie centrale d'un fond du corps du clapet (10, 210); un espace intérieur délimité à l'intérieur du corps du clapet (10, 210) au-dessus de l'orifice (11, 211); une section en saillie (14, 214) qui s'insère dans la buse d'aspiration (2) et présente un diamètre réduit à mesure qu'elle s'éloigne de l'orifice (11, 211); et un moyen d'ouverture et de fermeture de l'orifice (11, 211) installé dans l'espace intérieur du corps du clapet (10, 210).

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