Ink cartridge and vacuum-packaging product containing the same

Details Ink cartridge and vacuum-packaging product containing the same Ink cartridge and vacuum-packaging product containing the same

2005-09-06

2005-09-06

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

Reexamination Certificate

active

06938997

ABSTRACT:
An ink cartridge includes: an ink accommodating portion for holding ink; an air passage for making the ink accommodating portion communicate with the atmosphere; and a valve mechanism, provided in the air passage, including an air-releasing valve member for sealing a communication hole provided in a partition wall for separating an ink-accommodating-portion side that is a side close to the ink accommodating portion from an atmosphere side that is a side close to the atmosphere, in a direction from the ink-accommodating-portion side to the atmosphere side, wherein the air-releasing valve member has a contact portion for opening the air passage by receiving an external force from the atmosphere side to the ink-accommodating-portion side.

REFERENCES:
patent: 5040002 (1991-08-01), Pollacek et al.
patent: 5500663 (1996-03-01), Ujita et al.
patent: 6062390 (2000-05-01), Nakamura
patent: 6511168 (2003-01-01), Higuma
patent: 1 125 747 (2001-08-01), None
patent: 1 199 178 (2002-04-01), None
patent: 04-232069 (1992-08-01), None
patent: 2000-255078 (2000-09-01), None
patent: 2002-205414 (2002-07-01), None
European Search Report, Application No. 03014594.0-2304-, Dated Jun. 21, 2004.
Office Action from Chinese Patent Appln. No. 03146636.2 (Dec. 31, 2004), with English transl.

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