Polymeric piezoelectric drive element for writing jets in mosaic

Details Polymeric piezoelectric drive element for writing jets in mosaic Polymeric piezoelectric drive element for writing jets in mosaic

1980-05-09

1983-04-05

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310800, 346140R, H01L 4108, G01D 1518

Patent

active

043792464

ABSTRACT:
A piezoelectric drive element which surrounds an ink channel in a writing jet in a mosaic printing device is a winding formed by plies of thin synthetic foil having piezoelectric properties. The plies of the foil contact adjacent plies over large areas of adjacent plies and form a compression chamber in the interior of the winding which surrounds the ink chamber. Application of a voltage of a first polarity to the winding expands the winding and application of a voltage having an opposite polarity then contracts the winding forcing ink out of the chamber for printing. The winding and chamber may be surrounded by a covering of silicon rubber.

REFERENCES:
patent: 3683212 (1972-08-01), Zoltan
patent: 3798474 (1974-03-01), Cassand et al.
patent: 3946398 (1976-03-01), Kyser et al.
patent: 4095238 (1978-06-01), Kattner
patent: 4161670 (1979-07-01), Kern
patent: 4166229 (1979-08-01), DeReggi et al.
patent: 4216403 (1980-08-01), Krempl et al.
patent: 4216483 (1980-08-01), Kyser et al.
patent: 4282532 (1981-08-01), Markham
Article Entitled: "Laminated Piezoelectric Ceramic Transdicers", From Apr. 1975, Electronic Engineering.
Article Entitled: "Confocal Pair of Concave Transducers Made of PVF.sub.2 Piezoelectric Films", From Japan Journal of Applied Physics, vol. 16, (1977), No. 12.

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