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Apparatus and methods for cleaning and/or processing delicate parts

  • US 6,181,051 B1
  • Filed: 04/24/1998
  • Issued: 01/30/2001
  • Est. Priority Date: 08/05/1996
  • Status: Expired due to Term
First Claim
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1. A system for delivering ultrasound to liquid, comprising:

  • one or more ultrasonic transducers, each transducer having an operating frequency within an ultrasound bandwidth; and

    an ultrasound generator means for driving the transducers at frequencies within the bandwidth, the generator being amplitude modulated at a modulation frequency and having AM frequency sweep means for sweeping the modulation frequency as a function of time, the generator means and transducers being constructed and arranged so as to produce amplitude modulated ultrasound within the liquid.

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