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Vacuum cleaner nozzle having rotatable brush

  • US 10,638,904 B2
  • Filed: 02/12/2018
  • Issued: 05/05/2020
  • Est. Priority Date: 02/20/2017
  • Status: Active Grant
First Claim
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1. A vacuum cleaner nozzle comprising:

  • a rotatable brush comprising a light distribution mechanism for distributing light from the rotatable brush;

    a transparent screen through which a user can see the rotatable brush; and

    a drive unit for rotating the rotatable brush;

    whereina sensor for measuring a rotation speed of the rotatable brush, anda controller for controlling the light distributed from the rotatable brush in dependence on the rotation speed of the rotatable brush.

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