Surface treating device with top load cartridge-based cleaning system

  • US 7,578,020 B2
  • Filed: 06/28/2005
  • Issued: 08/25/2009
  • Est. Priority Date: 06/28/2005
  • Status: Active Grant
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First Claim
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1. A robotic surface treating device, comprising:

  • a dust bin;

    a sheet of cleaning material;

    means for moving the sheet of cleaning material relative to a surface to be treated; and

    a housing including a compartment having an open end for separately removably receiving the dust bin and the sheet of cleaning material;

    wherein the means for moving the sheet of cleaning material comprises a first roller suitable for letting out a roll of the sheet of cleaning material, a second roller suitable for reeling in the sheet of cleaning material, and a motor to cause the sheet of cleaning material to transfer between the first roller and the second roller; and

    wherein the means for moving the sheet of cleaning material further comprises a sensor for monitoring the sheet cleaning material let out by the first roller and providing feedback to facilitate automatic adjustment of the rate at which the sheet is being transferred from roller to roller.

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