Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1977-08-19
1979-02-20
Moore, Christopher K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15340, 15372, A47L 534
Patent
active
041399226
ABSTRACT:
A reversible electric motor is mounted in a frame and is connected to front and rear rotary brushes mounted transversely in the frame adjacent the front of the machine with a transverse vacuum nozzle being situated between the brushes. A transverse spray nozzle bar is situated forwardly of the front brush and a further spray nozzle bar is situated rearwardly of the rear brush. A transverse ground engaging drive roller is mounted adjacent the rear of the machine and is also connected to the electric motor. A handle extends upwardly and rearwardly from the rear of the machine and carries controls for the electric motor and for the spray nozzle bars. The vacuum nozzle and the spray bars are connected by flexible hoses to a remotely situated solution tank and recovery tank unit which also includes a source of vacuum such as a vacuum cleaner. Hot water and detergent are sprayed onto the carpet through the spray nozzle assemblies in advance of one of the brushes depending upon the direction of movement of the machine and is brushed into the carpet pile and extracted together with loosened dirt, by the vacuum nozzle therebehind. The machine rides on the drive roller and the engagement of the brushes and vacuum nozzle with the carpet is controlled by the handle manipulated by the operator.
REFERENCES:
patent: 1333226 (1920-03-01), Stoney
patent: 1391754 (1921-09-01), Bair
patent: 2489399 (1949-11-01), Claytor
patent: 2622254 (1952-12-01), Mendelson
patent: 2731659 (1956-01-01), Coplen
patent: 3218876 (1965-11-01), Berger
patent: 3774262 (1973-11-01), Anthony et al.
patent: 3871051 (1975-03-01), Collier
Ade Stanley G.
Moore Christopher K.
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