Liquid dispenser head, liquid dispensing unit using same,...

Details Liquid dispenser head, liquid dispensing unit using same,... Liquid dispenser head, liquid dispensing unit using same,...

2007-11-08

2011-10-25

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S070000

Reexamination Certificate

active

08042911

ABSTRACT:
A liquid dispenser head includes nozzles, pressure chambers, an energy generator, a shared chamber, a vibration member, and a specific wall portion. The nozzles discharge liquid. Each of the pressure chambers communicates with a corresponding one of the nozzles. The energy generator, provided for each of the pressure chambers, generates energy for pressurizing liquid in the pressure chamber. The shared chamber supplies liquid to the pressure chambers. The vibration member, forming a wall of each one of the pressure chambers, includes an energy-transmitting area configured to transmit the energy generated by the energy generator to each one of the pressure chambers. The specific wall portion, constituting at least a part of the same wall, or a different wall, of each of the pressure chambers, has a structural compliance set greater than a compression compliance of liquid in the pressure chamber.

REFERENCES:
patent: 4525728 (1985-06-01), Koto
patent: 2004/0079768 (2004-04-01), Kiguchi
patent: 7-156387 (1995-06-01), None
patent: 2001-293865 (2001-10-01), None
patent: 2002-205392 (2002-07-01), None
patent: 2002-301819 (2002-10-01), None
patent: 2002-347249 (2002-12-01), None
patent: 2003-266683 (2003-09-01), None
patent: 2004-74806 (2004-03-01), None
patent: 3687481 (2005-06-01), None

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