Cleaning and liquid contact with solids – Processes – Including use of vacuum – suction – or inert atmosphere
Patent
1996-12-10
1999-09-14
Stinson, Frankie L.
Cleaning and liquid contact with solids
Processes
Including use of vacuum, suction, or inert atmosphere
153404, 15370, 15383, 15 503, A47L 11282
Patent
active
059517824
ABSTRACT:
An apparatus, for brushing particulate material and the like from a surface, has a rotating brush, for example a cylindrical brush driven by hydraulic motor. The brush can be applied lightly to a surface and rotated relatively slowly, so as to brush material from the surface and project it forwardly. A strong air jet is provided in front of the brush and across the front of it, so as to pick up and entrain debris, snow, etc. brushed from the surface and blow or carry it laterally to one side. To dislodge material adhering to the bristles of the brush and prevent this from being carried behind it, a secondary, stripper nozzle is provided across the front of the brush for removing such material and causing it to drop in front of the brush. The apparatus enables the complete cleaning of a surface, for example an airport runway, in a single pass, and enables low brush pressure and speed to be provided, giving increased brush life.
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