Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2007-05-22
2010-12-07
Vo, Amh T. N. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
Reexamination Certificate
active
07845780
ABSTRACT:
This invention relates to an ink cartridge which has at least one ink container which has an ink outlet with an ink outlet opening which extends from the inside to the outside, in the ink outlet opening a differential pressure valve is mounted which includes a valve seat and a valve body which can move relative to it, the valve seat has a continuous valve opening which has a peripheral sealing surface outside, a spring means is attached between the movable valve body and the stationary ink outlet, the valve body is pressed by the spring means with a predetermined closing force to form a seal from the outside against the sealing surface of the valve seat, and can be moved against the closing force to the outside from the sealing surface. In order to form an ink cartridge with a differential pressure valve which works more reliably, the invention proposes that the valve seat be made deformable so that the sealing surface can be moved relative to the ink outlet opening.
REFERENCES:
patent: 5040002 (1991-08-01), Pollacek et al.
patent: 5807085 (1998-09-01), Yajima
patent: 5875615 (1999-03-01), Ito et al.
patent: 7195345 (2007-03-01), Shinada et al.
patent: 7553006 (2009-06-01), Busch et al.
patent: 0 238 829 (1991-03-01), None
patent: 0 709 207 (2002-02-01), None
Artech GmbH Design + Production in Plastic
Vo Amh T. N.
Welsh Flaxman & Gitler LLC
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