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US 7,401,908 B2Granted
Ink jet device with ink deaerator
AssigneesHeidelberger Druckmaschinen AG, Dimatix, Inc.
InventorsSandra J. Graveson, Alan Menard
Life of this patent
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Abstract
An ink jet device includes an ink jet print head and a deaerator having an ink passage, a membrane and a vacuum chamber. The ink passage has an exit connected to the ink jet print head and an inlet, and the membrane has a first side and a second side. The first side contacts ink in the ink passage and the second side contacts the vacuum chamber. The inlet of the ink passage is located above the exit.
Claims10
An ink jet device comprising:
- an ink jet print head;
- and
- a deaerator having an ink passage, a membrane and a vacuum chamber, the ink passage having an exit connected to the ink jet print head and an inlet, the membrane having a first side and a second side, the first side contacting ink in the ink passage and the second side contacting the vacuum chamber, the inlet of the ink passage being located above the exit,
- wherein the ink passage becomes progressively lower over an entire extent between the inlet and the exit, and the ink passage has a downwardly angled slope between the inlet and the exit.
1 more element
Dependencies are inferred from the claim text.