Method for cleaning the filter medium in a suction dryer by focusing ultrasonic beams
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United States of America Patent
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Aug 5, 1997
Grant Date -
N/A
app pub date -
Apr 17, 1995
filing date -
Apr 19, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a method for cleaning the filter medium in a suction dryer by means of ultrasound in an essentially continuous operation. According to the invention, the ultrasonic beams emitted from at least one ultrasonic oscillator (1, 12, 22, 36) are focused essentially near to the filter surface (4, 14, 25) of the filter medium, advantageously on the filter surface (4, 14, 25) of the filter medium, in order to create at least one ultrasound focusing zone.
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