Cartridge stopper with a valve function

Details Cartridge stopper with a valve function Cartridge stopper with a valve function

B - Operations, Transporting

41

F

B41F 31/08 (2006.01) B41J 2/175 (2006.01) B65D 47/20 (2006.01)

Patent

CA 2291491

A cartridge stopper having a valve function, especially for printing ink cartridges made of plastic, includes a valve sleeve that is axially elastic and rests on a mouthpiece neck. The valve sleeve includes a sealing lip that cooperates with a central body, and can move elastically forward (open) when pressure is exerted on the cartridge contents in order to clear a slit opening between the mouthpiece neck and the central body.

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