Droplet generator for generating micro-drops, specifically for an ink-jet printer
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United States of America Patent
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Apr 14, 1998
Grant Date -
N/A
app pub date -
Nov 22, 1995
filing date -
Nov 24, 1994
priority date (Note) -
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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.
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