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Method and Apparatus for Cleaning Fabrics, Floor Coverings, and Bare Floor Surfaces Utilizing a Soil Transfer Medium

  • US 20090293912A1
  • Filed: 08/12/2009
  • Published: 12/03/2009
  • Est. Priority Date: 06/20/2001
  • Status: Active Grant
First Claim
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1. A method of removing soil from a surface intended to be cleaned using a movable machine, said method comprising:

  • moving the movable machine across the surface while repeatedly;

    spraying a portion of a revolving cylindrical cleaning medium with a cleaning liquid, said cleaning liquid carried in cleaning solution tank on said movable machine;

    rotating said portion of the cleaning medium into contact with a vacuum extractor, said vacuum extractor defining an elongated slot opening which extends generally from one end of the cleaning medium to an opposite end, and said slot opening having a substantially narrower diameter than said cleaning medium;

    with said vacuum extractor, extracting soil and cleaning liquid from said portion of the revolving cleaning medium through said slot opening prior to said portion revolving into contact with the surface to be cleaned;

    rotating said wetted portion of the cleaning medium out of contact with said vacuum extractor and toward contact with said surface to be cleaned; and

    wiping the surface with said portion of the revolving cleaning medium so as to transfer soil from the surface to the cleaning medium.

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