Ultrasonic cleaning apparatus and method
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United States of America Patent
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Jun 12, 2018
Issued Date -
N/A
app pub date -
Sep 9, 2014
filing date -
Sep 20, 2013
priority date (Note) -
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Abstract
An ultrasonic cleaning apparatus and method, the ultrasonic cleaning apparatus (10) comprising a tank (12) for in use receiving a cleaning liquid and for receiving an item to be cleaned in a cleaning region (16) thereof, a transducer (21) arranged, when driven, to direct ultrasonic pressure waves into cleaning liquid received in the tank (12) and a controller (30) arranged in use to drive the transducer (21), a gas introducer (40) arranged to in use provide a supply of gas into cleaning liquid in the tank so that macroscopic bubbles of gas are produced wherein the gas introducer (40) provides a plurality of bubble sources distributed below the cleaning region of the tank. The apparatus further comprises an assembly arranged in use to enable movement of the item to be cleaned in the cleaning region.
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