Detector device for filter bags for vacuum cleaners

  • US 5,907,886 A
  • Filed: 01/28/1997
  • Issued: 06/01/1999
  • Est. Priority Date: 02/16/1996
  • Status: Expired due to Fees
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First Claim
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1. A detector assembly for sensing if a filter bag has been attached to a vacuum cleaner, the vacuum cleaner having a motor, said detector assembly comprising:

  • a sensor configured to detect the presence of a filter bag by transmitting electromagnetic waves to determine the presence of a detectable element integral with the filter bag and that produces a sensor output signal that varies based on the presence, type and position of the filter bag detectable element;

    a processing circuit for receiving the sensor output signal, said processing circuit configured to evaluate the sensor output signal to determine if the sensor output signal indicates said sensor has detected the presence of a select type of filter bag detectable element in a select position and, if the detection occurs, to assert a switch-on signal; and

    a switch for receiving the switch-on signal from the processing circuit, said switch being connected to the vacuum cleaner motor for regulating actuation of the vacuum cleaner motor, wherein said switch prevents actuation of the vacuum cleaner motor unless the switch-on signal is received.

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