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Ultrasonic cleaning

  • US 20020189635A1
  • Filed: 05/16/2002
  • Published: 12/19/2002
  • Est. Priority Date: 11/16/1999
  • Status: Abandoned Application
First Claim
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1. A process of cleaning a substrate, the process comprising a first step of providing a cleaning solution and a hand-held implement, the process further comprising a second step of applying the solution onto the substrate with the implement, characterised in that the implement has an active part vibrating at a frequency of at least 20 kHz with an amplitude of at least 10 μ

  • m and up to 100 μ

    m, and whereby the substrate is fibrous or a hard domestic surface.

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