Ink cartridge
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 1, 2000
Issued Date -
N/A
app pub date -
Oct 28, 1997
filing date -
May 20, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A removable ink cartridge having a generally rectangular parallelepiped ink container having a top wall with a vent hole, a bottom wall with a recess and an ink supply hole, and side walls with vertical ribs. A larger felt block having a low density is arranged in the chamber and a small felt block having a high density is arranged in the recess. An elastic tubular plug is fitted in the ink supply hole to receive a tubular member of a printing head. The tubular plug has a thin membrane having a central hole the diameter of which is small when the tubular member is not inserted in the tubular plug and is enlarged when the tubular member is inserted in the tubular plug sufficiently to push and to deform the thin membrane.
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Cited Art Landscape
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