Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1983-03-09
1985-03-12
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15340, 180 62, 180168, A47L 900
Patent
active
045035814
ABSTRACT:
Apparatus for automatically treating a floor or material on a floor is described in which a support carrying means for treating the floor is provided with a first set of wheels for moving the support in one direction or the opposite direction of a first path of motion and a second set of wheels is positioned at a right angle to the wheels of the first set of wheels for moving the support in one direction at a right angle to the first path of motion. This second set of wheels is movably mounted with respect to the support so that the second wheels can be forced downwardly to bear against the floor and thereby lift the support from the first wheels, and raised upwardly to allow the first wheels to contact the floor. Means are provided to raise and lower the second set of wheels, means are provided to drive the first and second set of wheels, and sensing means to detect an obstruction at each end of the support with respect to the first path of motion are also provided. These sensing means are operative to control the drive for the first and second set of wheels.
REFERENCES:
patent: 1935158 (1933-11-01), Lumley
patent: 3713505 (1973-01-01), Muller
patent: 4223753 (1980-09-01), Bradbury
Lambert Dennis H.
Moore Chris K.
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