Ultrasonic device

Details Ultrasonic device Ultrasonic device

1985-10-23

1987-09-08

Coe, Philip R.

Cleaning and liquid contact with solids

Apparatus

For work having hollows or passages

134 1, 134184, 310323, 310325, 366127, B08B 900, H01L 4104

Patent

active

046917241

ABSTRACT:
An ultrasonic device comprises at least one transducer and a probe having a first active part adapted to be immersed in a medium, an adapter part for matching the impedance of the probe to the medium and an end surface on the adapter part adapted to emit ultrasonic waves longitudinally into the medium. The first active part lies between the end surface on the adapter part, at which is located a peak of the longitudinal ultrasonic waves, and a limiting part at which is located a node of the longitudinal ultrasonic waves. It comprises a second active part adapted to emit ultrasonic waves radially into the medium and at which is located one or more peaks of the radial ultrasonic waves.

REFERENCES:
patent: 3131515 (1964-05-01), Mason
patent: 3139101 (1964-06-01), Wyczalek et al.
patent: 3173034 (1965-03-01), Dickey et al.
patent: 3331589 (1967-07-01), Hammitt et al.
patent: 3368085 (1968-02-01), McMaster et al.
patent: 3394274 (1968-07-01), Jacke et al.
patent: 3495104 (1970-02-01), Burgo et al.
patent: 3524085 (1970-08-01), Shoh
patent: 4173725 (1979-11-01), Asai et al.
patent: 4615984 (1986-10-01), Stoker

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