Ultrasonic washing apparatus
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United States of America Patent
Stats
-
Feb 20, 2001
Grant Date -
N/A
app pub date -
Jun 10, 1999
filing date -
May 4, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sensor chamber is formed a side portion of a liquid supply inlet of a housing, a sound pressure sensor is mounted in the sensor chamber, ultrasonic waves from an ultrasonic vibrator provided in the housing are detected by the sound pressure sensor, and a defect of the ultrasonic vibrator is detected when the output of the sound pressure sensor becomes less than a predetermined value.
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Cited Art Landscape
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