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Application filed by Crest Group IncfiledCriticalCrest Group Inc
Priority to MYPI20061959priorityCriticalpatent/MY141442A/en
Publication of MY141442ApublicationCriticalpatent/MY141442A/en
ULTRASONIC PROCESSING APPARATUS AND METHODS ARE DISCLOSED, WHICH INCLUDES MULTIPLE TRANSDUCERS OF AT LEAST TWO DIFFERENT RESONANT FREQUENCIES (38) SUPPLYING ULTRASONIC ENERGY TO A LIQUID FILLED TANK CONTAINING COMPONENTS TO BE CLEANED OR PROCESSED ULTRASONICALLY. THE TRANSDUCERS (14, 6, 20) ARE ARRANGED IN EQUILATERAL TRIANGULAR PATTERNS ALONG DIAGONAL LINES (24) ON A WALL OF THE TANK SO THAT EACH TRANSDUCER HAS AN ADJACENT TRANSDUCER OF A DIFFERENT FREQUENCY. ALTERNATIVELY, THE APPARATUS INCLUDES ONE OR MORE ROD TRANSDUCERS (26, 28) HAVING DIFFERENT RESONANT FREQUENCIES SO THAT THE APPARATUS PROVIDES A MIXTURE OF VARIOUS FREQUENCIES OF ULTRASONIC ENERGY TO THE TANK. ANOTHER ASPECT OF THE INVENTION INVOLVES SELECTING TRANSDUCERS WITH DIFFERENT RESONANT FREQUENCIES THAT ARE OUTSIDE AN EXCLUDED SUBRANGE (36), AND POWERING THE TRANSDUCERS BY A DRIVING SIGNAL THAT SWEEPS THROUGH THE RESONANT FREQUENCIES OF THE TRANSDUCERS AND THE EXCLUDED SUBRANGE.
MYPI200619592006-04-272006-04-27Ultrasonic processing method and apparatus with multiple frequency transducers
MY141442A
(en)