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Carpet cleaning machine with pattern-oriented vacuum nozzle

  • US 5,086,539 A
  • Filed: 10/31/1990
  • Issued: 02/11/1992
  • Est. Priority Date: 10/31/1990
  • Status: Expired due to Fees
First Claim
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1. An improved machine for cleaning a carpet using substantially-dry cleaning granules, the machine including:

  • a pair of spaced, long-bristled counter-revolving cylindrical brushes supporting the machine and stroking the granules into and across the carpet fibers;

    a shroud disposed above the brushes and having a bottom surface spaced from the brushes for air flow therebetween;

    a first vacuum nozzle powered by a separated vacuum motor and having an inlet adjacent to the bottom surface of the shroud receiving granules removed from the carpet;

    the counter-revolving brushes simultaneously and continuously casting the granules toward the bottom surface of the shroud for vacuum collection through the inlet;

    whereby the machine strokes cleaning granules into a carpet and more efficiently removes such granules therefrom.

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