Combination sweeping-scrubbing apparatus
First Claim
1. A machine for cleaning a surface comprising a frame, wheel means including a steerable wheel for supporting said frame above the surface, a cleaning solution tank carried by said frame, a recovery solution tank carried by said frame, a drum brush mounted below said frame for contacting the surface and for removing debris thereon, means on said frame near said drum brush for receiving debris therefrom, a supply line for supplying cleaning solution from said cleaning solution tank to said drum brush so that said drum brush distributes cleaning solution to the surface in addition to removing debris therefrom, means for rotating said drum brush, at least on disc brush located behind said drum brush for scrubbing the surface with the cleaning solution distributed by said drum brush after the debris is removed, means for rotating said disc brush, surface-engaging means located behind said disc brush for collecting cleaning solution deposited on the surface from said supply line, and exhaust means having passage means with one end located near said surface-engaging means to carry the collected solution from the surface to said recovery solution tank.
6 Assignments
0 Petitions
Accused Products
Abstract
A machine for cleaning a surface is provided. The machine includes a forward drum brush unit designed primarily for sweeping and a rear disc brush unit designed primarily for scrubbing. Squeegees are located behind the disc brushes. Cleaning solution is supplied between the drum brush and the disc brushes and is directed toward the drum brush to achieve a wet sweeping action thereby. The disc brushes are mounted for movement toward and away from the surface to be cleaned and are engagable with the surface under controllable pressure. The drum brush is mounted on a separate frame and is engagable by the disc brush unit so that it can be raised for transportation purposes when the disc brush unit is raised. The squeegees can be raised independently of the brushes.
82 Citations
23 Claims
- 1. A machine for cleaning a surface comprising a frame, wheel means including a steerable wheel for supporting said frame above the surface, a cleaning solution tank carried by said frame, a recovery solution tank carried by said frame, a drum brush mounted below said frame for contacting the surface and for removing debris thereon, means on said frame near said drum brush for receiving debris therefrom, a supply line for supplying cleaning solution from said cleaning solution tank to said drum brush so that said drum brush distributes cleaning solution to the surface in addition to removing debris therefrom, means for rotating said drum brush, at least on disc brush located behind said drum brush for scrubbing the surface with the cleaning solution distributed by said drum brush after the debris is removed, means for rotating said disc brush, surface-engaging means located behind said disc brush for collecting cleaning solution deposited on the surface from said supply line, and exhaust means having passage means with one end located near said surface-engaging means to carry the collected solution from the surface to said recovery solution tank.
- 11. A machine for cleaning a surface comprising a main frame, wheels for supporting said frame above the surface, a cleaning solution tank carried by said frame, at least one recovery solution tank posiitoned on said frame, a drum brush mounted below said frame for contacting the surface and for removing debris thereon and for distributing a cleaning solution on the surface, means on said frame near said drum brush for receiving debris therefrom, means for rotating said drum brush, a supply line for supplying cleaning solution from said cleaning solution tank for distribution on the surface by said drum brush, disc brush means located behind said drum brush, said disc brush means being effective to scrub a path of the surface having a width at least substantailly equal to the length of said drum, means for rotating said disc brush means, squeegee means located behind said disc brush means to gather the cleaning solution at a central point, and exhaust means for carrying the solution from the surface to said recovery solution tank.
Specification