Ink jet method and apparatus using a thin film piezoelectric exc

Details Ink jet method and apparatus using a thin film piezoelectric exc Ink jet method and apparatus using a thin film piezoelectric exc

1979-06-04

1981-08-04

Hartary, Joseph W.

Recorders

Record receiver deforming

310800, 346140R, 417322, G01D 1518

Patent

active

042825326

ABSTRACT:
A thin film of polyvinylidene fluoride is operated in the piezoelectric thickness mode to stimulate fluid drop formation for ink jet printing systems. The film is placed against a rigid wall of either rectangular, cylindrical or spherical chambers having at least one nozzle for emitting a continuous stream of fluid from which the drops are formed. The frequency of the drop generation is related to the frequency of an AC voltage applied across the piezoelectric film.

REFERENCES:
patent: 2512743 (1950-06-01), Hansell
patent: 3596275 (1971-07-01), Sweet
patent: 3832580 (1974-08-01), Yamamuro
patent: 3900162 (1975-08-01), Titus
patent: 3958255 (1976-05-01), Chiou
patent: 4088915 (1978-05-01), Kodama
patent: 4115789 (1978-09-01), Fischbeck
patent: 4131899 (1978-12-01), Christou

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