Patent ID: 6666552
Filing Date: 2003-12-23
Classification: B41J

Abstract:
A cartridge, for dispensing ink used in association with an output recordation device, said cartridge comprising:a housing having a cavity therein for storing a quantity of ink, a dispensing passage in communication with said cavity through said housing for transferring the ink from said cavity, and a vacuum port extending through said housing placing said cavity in fluid communication with ambient; a one-way check valve operatively associated with said vacuum port, said check valve being selectively operable to effect a fluid transfer from said cavity to ambient while fluidically isolating ambient from said cavity; said check valve includes a body portion and a valve portion extending from said body portion, said valve portion being positioned adjacent and operatively associated with said vacuum port of said housing, and said body portion of said check valve being received in said vacuum port; and wherein said body portion extends at least partially into said cavity and includes a retaining member extending therefrom inside said cavity, said retaining member having a cross-sectional area greater than a cross-sectional area of said vacuum port.