Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1997-01-24
1998-02-10
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15308, 15322, A47L 702
Patent
active
057155658
ABSTRACT:
A device for cleaning grooved surfaces, such as moving escalators or gangways, comprising a rotatingly driven roll brush arranged in a casing, a spraying device for spraying cleaning liquid, a suction device for removing loosened dirt particles from the rotation space of the roll brush and a plurality of comb-like devices arranged in front of and behind the roll brush in the direction of movement of the escalator or gangway. The comb-like devices engage the spaces between the grooves of the escalator or gangway and, in combination with the casing, seal the rotation space of the roll brush from the outside. The spraying device wets the grooved surface, the roll brush loosens dirt on the grooved surface and collects the loosened dirt, and the suction device removes the cleaning liquid and loosened dirt from the roll brush, thus accomplishing efficient cleaning of the grooved surface.
REFERENCES:
patent: 3273193 (1966-09-01), Soderholm et al.
patent: 3559230 (1971-02-01), Ogle
patent: 3584329 (1971-06-01), Cravits
patent: 3869749 (1975-03-01), London et al.
patent: 4161802 (1979-07-01), Knight et al.
patent: 4709441 (1987-12-01), Center
"Automation" Jul., 1973.
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