A one-way valve, a valve unit assembly and ink cartridge using this valve or valve unit assembly for controlling ink flow are disclosed. The one-way valve includes a foot support portion, a wall support portion projecting at an angle from an interior side of the foot support portion, a shoulder support...http://www.google.fr/patents/US6935730?utm_source=gb-gplus-shareBrevet US6935730 - One-way valve, valve unit assembly, and ink cartridge using the same
One-way valve, valve unit assembly, and ink cartridge using the same
