Fluid injection devices with sensors, fluid injection system...

Details Fluid injection devices with sensors, fluid injection system... Fluid injection devices with sensors, fluid injection system...

2006-08-16

2009-08-25

Vo, Anh T. N. (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S019000

Reexamination Certificate

active

07578583

ABSTRACT:
A fluid injection device integrating a piezoelectric sensor, a fluid injection apparatus and a method for analyzing fluid content in a fluid injection device. The fluid injection device comprises a fluid injector and a piezoelectric sensor. The fluid injector comprises a plurality of fluid chambers formed in a substrate for receiving fluid. A structural layer is disposed on the substrate and the plurality of fluid chambers. At least one fluid actuator is disposed on the structural layer opposing each fluid chamber. A nozzle is adjacent to the at least one fluid actuator and connecting each fluid chamber through the structural layer. The piezoelectric sensor id disposed on the structural layer to analyze fluid content in each fluid chamber.

REFERENCES:
patent: 4275290 (1981-06-01), Cielo et al.
patent: 5699090 (1997-12-01), Wade et al.
patent: 6702894 (2004-03-01), Lee et al.
patent: 7172267 (2007-02-01), Furukawa
patent: 7328982 (2008-02-01), Kusakari

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