Multi-electrode, focused capillary wave energy generator

Details Multi-electrode, focused capillary wave energy generator Multi-electrode, focused capillary wave energy generator

1990-12-21

1993-03-16

Fuller, Benjamin R.

Recorders

Markers and/or driving means therefor

With ink supply to marker

310366, B41J 2104

Patent

active

051948800

ABSTRACT:
An ejector for ejecting droplets from an ink-filled reservoir is disclosed. The ejector comprises a substrate with a generally planar surface. The substrate is submerged in the reservoir so that the substrate surface is parallel to the reservoir surface at a shallow predetermined depth. On the substrate surface around a center is a plurality of concentric, circular electrodes. A coupled oscillator excites the electrodes in a temporal relationship such that the capillary waves generated at the ink reservoir surface are reinforced so that droplets may be ejected from the reservoir at the center of the electrodes.

REFERENCES:
patent: 4282532 (1981-08-01), Markham
patent: 4383265 (1983-05-01), Kohashi
patent: 4697195 (1987-09-01), Quate et al.
patent: 4719476 (1988-01-01), Elrod et al.
patent: 4719480 (1988-01-01), Elrod et al.
patent: 4748461 (1988-05-01), Elrod

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