| US 7,578,020 B2 | ||
| Surface treating device with top load cartridge-based cleaning system | ||
| Thomas Jaworski, Racine, Wis. (US); Jeffrey L. Harwig, New Berlin, Wis. (US); Mark M. Gipp, Racine, Wis. (US); Kathleen M. Laru, Racine, Wis. (US); Seakee Chen, Guangzhou, Guangdon Province (China); Fukyuen Cheng, Ngau Tau Kok, Kowloon (Hong Kong Special Administrative Region of the People's Republic of China, The); and Kamfong Tam, Sai Wan Ho (Hong Kong Special Administrative Region of the People's Republic of China, The) | ||
| Assigned to S.C. Johnson & Son, Inc., Racine, Wis. (US) | ||
| Filed on Jun. 28, 2005, as Appl. No. 11/168,898. | ||
| Prior Publication US 2006/0288519 A1, Dec. 28, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. A47L 11/18 (2006.01); A47L 11/282 (2006.01) | ||
| U.S. Cl. 15—50.3 [15/50.1; 15/52.1; 15/98; 15/319] | 14 Claims |
| 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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