Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1998-04-01
2000-02-29
Beisner, William H.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
154151, 15418, A47L 1140
Patent
active
060293101
ABSTRACT:
A wand for cleaning a carpeted stair tread includes a vacuum tube and a plurality of partitions attached thereto. The vacuum tube and the partitions cooperate to define a central channel and a pair of generally enclosed lateral channels. A nozzle bar for dispensing a liquid cleaning material extends through the central channel. The lateral channels extend in side-by-side relationship with the central channel. Each lateral channel is open along the bottom edge thereof to define a vacuum slot. Each of the lateral channels communicates with the vacuum tube through a respective opening formed in the vacuum tube. The wand may also include an elongated operating handle. Preferably the handle is attached to the wand such that the axis of the handle is substantially parallel to the axis of the wand. The wand includes a nose piece having a central channel and a pair of generally enclosed lateral channels that extend side-by-side relationship with the central channel. The nose piece is mounted for slidable movement with respect to the wand to bring the corresponding lateral channels in the nose piece and in the wand into adjustable degrees of overlapping fluid communication.
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Beisner William H.
E. I. Du Pont de Nemours and Company
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