Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1985-01-22
1986-06-24
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15401, A47L 700
Patent
active
045960615
ABSTRACT:
A spray-vacuum tool is disclosed for cleaning hard nonabsorbent surfaces, of varying smoothness or roughness and of varying materials including composition or ceramic tile, cement block, or even glass. The tool has a housing defining an interior cavity, and a partition divides the cavity into adjacent liquid and vacuum chambers each open to an open housing face. A pair of squeegees project beyond the open housing face from opposite housing sides paralleling the partition; and a pair of end guides also project beyond the open housing face from the other interconnecting housing sides, but with somewhat less projection than the squeegees have. The end guides extend slightly beyond the squeegees and the ends of each squeegee extend substantially up against the end guides. The end guides have flat edges designed to ride on the surface to be cleaned; and the squeegees then also ride against the same surface, but are somewhat flexed. This housing-squeegee-end guide containment of the chambers is immediately adjacent the surface to be cleaned. Nozzles in the liquid chamber operate to spray cleaning liquid directly against the same surface; and means including a control valve connect a high pressure source of such liquid to the nozzles. A hollow wand swiveled at one end to the housing connects the vacuum chamber with an appropriate source of vacuum and also serves as the tool handle. A brush also is in the liquid chamber immediately adjacent the squeegee. The end guides are mounted to swivel about axes extended parallel to the squeegees to allow tool rocking on the surface to be cleaned without having a vacuum break.
REFERENCES:
patent: 954541 (1910-04-01), Raymond et al.
patent: 2292435 (1942-08-01), Crites
patent: 3538535 (1970-11-01), Ginsburgh et al.
patent: 3711891 (1973-01-01), Conway
patent: 3992747 (1976-11-01), Hufton
patent: 4164055 (1979-08-01), Townsend
Lind Charles F.
Moore Chris K.
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