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Water leakage monitoring apparatus

  • US 6,404,343 B1
  • Filed: 06/23/2000
  • Issued: 06/11/2002
  • Est. Priority Date: 06/25/1999
  • Status: Expired due to Fees
First Claim
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1. A leakage monitoring apparatus comprising:

  • a vibration/electric converter operable to convert an acoustic vibration transmitted to a pipe into an electrical signal;

    a signal discriminator operable to process the electrical signal of said vibration/electric converter for detecting a signal of a predetermined band being held below a predetermined level continuously beyond a continuing condition to generate a sound interruption detection signal which indicates a probability that no leakage occurs in the pipe; and

    a counter operable to count a number of occurrences of the sound interruption detection signal to obtain a counted value which indicates the probability that no leakage occurs in the pipe.

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  • 3 Assignments
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