Patent ID: 8370991

Claim:
An extractor cleaning machine comprising: a foot movable along a surface to be cleaned, the foot including a distribution nozzle and a suction nozzle; a handle coupled to the foot to facilitate movement of the foot along the surface; a suction source in fluid communication with the suction nozzle, the suction source operable to draw fluid and dirt from the surface through the suction nozzle; a recovery tank coupled to at least one of the foot and the handle, the recovery tank in fluid communication with the suction source to receive and store the fluid and dirt drawn through the suction nozzle; a distributor in fluid communication with the distribution nozzle, the distributor operable to distribute a first cleaning fluid and a second cleaning fluid to the surface through the distribution nozzle; and a supply tank assembly coupled to at least one of the foot and the handle, the supply tank assembly including a first tank in fluid communication with the distributor, the first tank having a rigid body defining a first storage chamber for storing the first cleaning fluid and supplying the first cleaning fluid to the distributor, and a second tank positioned within the first storage chamber of the first tank in fluid communication with the distributor, the second tank having a rigid body defining a second storage chamber for receiving the second cleaning fluid and supplying the second cleaning fluid to the distributor, wherein at least a portion of the rigid body of the second tank defines a boundary of the first storage chamber to separate the first cleaning fluid and the second cleaning fluid.