Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1973-07-31
1977-05-31
Moore, Christopher K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15346, 15380, A47L 104
Patent
active
040259846
ABSTRACT:
A wall washing device is provided with self contained liquid spray means, wall and window surface scrubbing means such as brushes or sponges and means for providing a curtain of high velocity, in-rushing air around a wall washing sight. This air serves to dry the freshly laundered wall and window surfaces and also to confine the washing liquids and retard their egress from the wall washing sight. The high velocity, in-rushing air curtain is delivered through a perimeter aperture which is spaced-apart from the window/wall surfaces, in accordance with a first embodiment; and is provided by forceably drawing atmospheric air inwardly at the perimeter of the wall washing sight in accordance with a second embodiment. The device is adapted to ascend and descend between a pair of vertical mullions of the building. The device is further adapted to provide its wall and window washing function during either the ascending or descending runs or both. The device moreover is intended for remotely controlled operation.
REFERENCES:
patent: 1007888 (1911-11-01), Parker
patent: 1801620 (1931-04-01), Bettman
patent: 2916761 (1959-12-01), Oberg
patent: 3337889 (1967-08-01), West
patent: 3604049 (1971-09-01), Hetman
H. H. Robertson Company
Keck Harry B.
Manias George E.
Moore Christopher K.
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