Ultrasonic oscillating device and ultrasonic washing apparatus u

Details Ultrasonic oscillating device and ultrasonic washing apparatus u Ultrasonic oscillating device and ultrasonic washing apparatus u

1990-02-09

1992-06-09

Stinson, Frankie L.

Cleaning and liquid contact with solids

Apparatus

With movable means to cause fluid motion

134186, 68 3SS, 310337, B08B 310

Patent

active

051198401

ABSTRACT:
An ultrasonic oscillating device comprising a base plate and an ultrasonic transducer attached to the base plate. The thickness of the base plate is an integer multiple of approximately a half-wavelength of an oscillation of the base plate in the direction of its thickness under a driving frequency. The base plate may be a quadrilateral such as a square and a rectangle with a length of one side of the quadrilateral being at least a quarter-wavelength of the oscillation. The base plate may be a circle with a length of a diameter of the circle being at least a quarter-wavelength of the oscillation. An ultrasonic washing apparatus comprising a cleaning tank, an ultrasonic multi-frequency oscillator, and the ultrasonic oscillating device is also provided.

REFERENCES:
patent: 3113761 (1963-12-01), Plutzman
patent: 3720402 (1973-03-01), Cummins et al.
patent: 3730489 (1973-05-01), Morita

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