Ink cartridge
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United States of America Patent
Stats
-
Aug 26, 2003
Grant Date -
N/A
app pub date -
Mar 11, 2002
filing date -
Mar 11, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An ink cartridge includes an ink bag for containing ink. The bag is sealed along the bottom to form a bottom seam and is sealed along the bag sides to form side seams. The cartridge includes a housing having first and second side walls defining a cavity for receiving the bag. A first compressible foam sheet is disposed in the cavity between one of the side walls of the housing and one of the walls of the bag and adjacent the side seams. A second compressible foam sheet is disposed in the cavity between the other side wall of the housing and the other bag wall and adjacent the side seams. The foam sheets supply a uniform distribution of pressure along the side seams of the bag as ink is withdrawn from the bag and expand to assist in the uniform delivery of ink from the bag.
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