Incremental printing of symbolic information – Ink jet – Ejector mechanism
Reexamination Certificate
2005-09-06
2005-09-06
Meier, Stephen D. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Ejector mechanism
C347S065000
Reexamination Certificate
active
06938992
ABSTRACT:
A micro-electromechanical fluid ejection mechanism includes a substrate that incorporates drive circuitry. A nozzle chamber structure is arranged on the substrate to define a nozzle chamber and a fluid ejection port in fluid communication with the nozzle chamber. An actuator is fast at one end with the substrate and extends into the nozzle chamber. The actuator includes an actuating member that is connected to the drive circuitry and is anchored at one end to the substrate. The actuating member is displaceable between a quiescent position and an active position to eject fluid from the ejection port. At least a portion of the actuating member is of a shape memory alloy which is configured so that, when the shape memory alloy makes a phase transformation, the actuating member is displaced between the quiescent and active positions. The actuating member is connected to the drive circuitry so that the shape memory alloy can be heated above its phase change temperature on receipt of an electrical signal from the drive circuitry.
REFERENCES:
patent: 4737802 (1988-04-01), Mielke
patent: 5812159 (1998-09-01), Anagnostopoulos et al.
patent: 5828394 (1998-10-01), Khuri-Yakub et al.
patent: 5903380 (1999-05-01), Motamedi et al.
patent: 5982521 (1999-11-01), Bessho et al.
patent: 6174050 (2001-01-01), Kashino et al.
patent: 6435666 (2002-08-01), Trauernicht et al.
patent: 6623108 (2003-09-01), Silverbrook
patent: 2004/0104970 (2004-06-01), Silverbrook
patent: 4139731 (1993-06-01), None
patent: 371763 (1990-06-01), None
patent: 416540 (1991-03-01), None
patent: 359093356 (1984-05-01), None
patent: 03202351 (1989-12-01), None
patent: 2150353 (1990-06-01), None
patent: 2265751 (1990-10-01), None
patent: 9601403 (1997-10-01), None
Do An H.
Meier Stephen D.
Silverbrook Research PTY LTD
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