Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1981-06-24
1983-03-22
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15321, 15345, A47L 1130
Patent
active
043770185
ABSTRACT:
A mobile cleaning device for large flat surfaces includes a housing which forms a spray chamber having an open bottom. A first pair of exhaust ducts is mounted on the front and rear walls of the housing, and a second pair of exhaust ducts is mounted on the top wall of the housing adjacent the housing side walls for removing the debris and spent cleaning fluid from within the spary chamber as the device is moved along a surface being cleaned. An improved fluid-powered rotor is mounted on the housing and rotatably mounts and drives a plurality of fluid spray nozzles by use of the back pressure exerted by the cleaning fluid as it is sprayed from the nozzles against the surface being cleaned. The rotor is provided with an effective seal for the high pressure fluid with respect to the stationary components adjacent the movable rotor. The exhaust ducts are connected to a source of suction through a manifold in which the total area of the exhaust duct openings on the inlet side of the manifold is equal to the area of the suction opening on the outlet side of the manifold. Wheels movably adjustably mount the housing with respect to the surface being cleaned enabling the total areas of the inlet air passages formed between the bottom edges of the housing and surface to be equal to the total area of the exhaust duct openings to achieve a highly efficient suction.
REFERENCES:
patent: 4037290 (1977-07-01), Rose et al.
patent: 4107816 (1978-08-01), Matthews
patent: 4191589 (1980-03-01), Halls et al.
patent: 4205412 (1980-06-01), Weber
Moore Chris K.
Roto Cleaner, Inc.
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