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| Number | Title | Issue Date |
| 7954200 | Constant head device for a cleaning machine A cleaning apparatus for cleaning a surface in which cleaning solution is dispensed to the surface is provided. The cleaning apparatus includes a distributor for dispensing solution to the surface and a solution tank fluidly connected to the distributor for supplyin... | 06/07/2011 |
| 7237299 | Cleaning machine having a control system for cleaning a surface A cleaning apparatus for cleaning a surface in which cleaning solution is dispensed to the surface and substantially simultaneously extracted along with the dirt on the surface in a continuous operation is provided. The cleaning apparatus further includes a detectin... | 07/03/2007 |
| 7222389 | Recovery tank for a floor cleaning device A recovery tank is provided for a floor cleaning unit. The recovery tank comprises an inlet opening and a duct fluidly connected to the inlet. The duct extends horizontally within the tank adjacent a side wall the recovery tank for directing air and liquid from the ... | 05/29/2007 |
| 7174603 | Multi-purpose position sensitive floor cleaning device This invention relates to a multi-purpose position sensitive floor cleaning device having two separate and distinct selective modes of operation whereby 180° longitudinal rotation of the floor cleaning device selectively activates one of the two separate and distin... | 02/13/2007 |
| 7146679 | Apparatus and method for cleaning a surface A cleaner for cleaning a surface comprises a floor-engaging portion for moving along the surface. A source supplies a liquid to a distributor, which distributes the liquid from the source on the surface wherein an activating device is operatively connected to the so... | 12/12/2006 |
