Ultrasonic MHz oscillator, in particular for liquid atomization

Details Ultrasonic MHz oscillator, in particular for liquid atomization Ultrasonic MHz oscillator, in particular for liquid atomization

1988-09-19

1990-03-27

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310325, 310335, 2391022, H01L 4108

Patent

active

049123572

ABSTRACT:
An ultrasonic MHz oscillator, in particular for liquid atomization, where at the upper, widening end of the upwardly decreasingly tapering amplitude transformer fastened on a planar piezoceramic disk, a continuously concave surface adapted to the liquid quantity and liquid surface tension is disposed comprising a concave mirror. The mirror cavity is adapted to receive the liquid to be atomized. With the oscillator, smallest droplets can be produced without coupling liquid, so that the oscillators find use above all in pocket inhalators.

REFERENCES:
patent: 3214101 (1965-10-01), Perron
patent: 3292910 (1966-12-01), Martner
patent: 3357641 (1967-12-01), Martner
patent: 3421939 (1969-01-01), Jacke
patent: 4153201 (1979-05-01), Berger et al.
patent: 4301968 (1981-11-01), Berger et al.
patent: 4474326 (1984-10-01), Takahashi
patent: 4540123 (1985-09-01), Junger et al.
patent: 4541564 (1985-09-01), Berger et al.

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