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US 7,731,334 B2Granted
Inkjet nozzle utilizing electrostatic attraction between parallel plates
AssigneeSilverbrook Research Pty Ltd
InventorKia Silverbrook
Life of this patent
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Abstract
Provided is an inkjet nozzle arrangement which includes a wafer base defining an ink chamber with an ink inlet channel and an ink ejection port. The arrangement also includes an upper electrode plate and a lower electrode plate separated by at least one polytetrafluoroethylene (PTFE) layer within the chamber. The upper plate has a corrugated portion which concertinas upon movement of said top plate, wherein ink is ejected from the ink ejection port through the utilization of attraction and related movement between the plates when a potential difference is applied therebetween.
Claims7
An inkjet nozzle arrangement comprising:
- a wafer base defining an ink chamber with an ink inlet channel and an ink ejection port;
- and
- an upper electrode plate and a lower electrode plate separated by at least one polytetrafluoroethylene (PTFE) layer within the chamber, said upper plate having a corrugated portion which concertinas upon movement of said top plate, wherein ink is ejected from the ink ejection port through the utilization of attraction and related movement between the plates when a potential difference is applied therebetween.
Dependencies are inferred from the claim text.