Droplet generator for generating micro-drops, specifically for a

Details Droplet generator for generating micro-drops, specifically for a Droplet generator for generating micro-drops, specifically for a

1995-11-22

1998-04-14

Hecker, Stuart N.

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 71, B41J 2045

Patent

active

057398321

ABSTRACT:
A droplet generator includes a housing (1) wherein there are attached at their one end a multitude of piezo-electric flectional-benders (19), arranged next to each other. A second end (16) of each of the benders (19) is located above a separate jet (7) which leads from a chamber (5) to the exterior. Between the individual benders (19) there are installed separation walls (26). Any cross communication as a result of viscous coupling between benders or due to pressure fluctuations is avoided and the efficiency is improved, so that a better graphic image is attained. The benders have an electrically insulating coating, so that the droplet generator is also suitable for electrically conducting inks.

REFERENCES:
patent: 4564851 (1986-01-01), Nilsson et al.
patent: 5373314 (1994-12-01), Everett et al.
patent: 5477253 (1995-12-01), Hotomi et al.

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