US PATENT SUBCLASS 347 / 70
.~.~.~.~ With vibratory plate

Current as of: June, 1999
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347 /   HD   INCREMENTAL PRINTING OF SYMBOLIC INFORMATION

1  DF  INK JET {6}
20  DF  .~ Ejector mechanism (i.e., print head) {13}
54  DF  .~.~ Drop-on-demand {3}
68  DF  .~.~.~ With piezoelectric force ejection {3}
70.~.~.~.~ With vibratory plate

DEFINITION

Classification: 347/70

With vibratory plate:

(under subclass 68) Subject matter wherein the piezoelectric element contracts to deform a vibration plate attached directly to the piezoelectric element to expel ink droplets.