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Method and apparatus for determining the level of particulate material in a particulate material collection vessel

  • US 6,435,024 B1
  • Filed: 09/29/2000
  • Issued: 08/20/2002
  • Est. Priority Date: 09/29/2000
  • Status: Expired due to Fees
First Claim
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1. A method for determining a level of particulate contaminate material in a particulate contaminate material collection vessel adapted to collect particulate contaminate material from a cyclone separator in a copier/duplicator machine, the method comprising:

  • a) connecting said collection vessel to said cyclone separator;

    b) positioning a transmitter to transmit and ultrasonic wave signal through a particulate storage area in the vessel at a selected level to a receiver;

    c) providing electrical power to the transmitter;

    d) monitoring an ultrasonic wave signal received at the receiver to detect a change in the ultrasonic wave signal indicative of particulate contaminate material at the selected level in the particulate contaminant material storage area; and

    , e) generating a signal indicative of the presence of particulate contaminate material at the selected level in the particulate contaminate material storage area.

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