Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1991-09-23
1992-02-18
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15 98, A47L 1120
Patent
active
050881515
ABSTRACT:
A dust collection/control system is disclosed utilized in a floor polishing machine (10) according to the most preferred form of the present invention. The floor polishing machine (10) includes a rotating working member in the form of a polishing member (16) for maintaining a floor surface as it is moved along the floor. The polishing member (16) is located and rotated within a housing or shield (186) including a circular, planar portion (92) terminating at its periphery in a downwardly extending flange (94) including a flexible skirt (95) which engages the floor. The rotation of the polishing member (16) within the housing (186) passively generates an air current contained within the housing (186). The air current engages first and second air barriers (190) which extend downwardly from the planar portion (92) and generally radially inwardly from the flange (94) to create a high pressure area upstream of the air barriers (190) with high pressure air being allowed to escape through an air outlet (188) into a filter and collection bag (148) and to create a vacuum downstream of the air barriers (190) to draw air around the skirt (95) to entrain the dust and air in the circling air current.
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Hako.RTM.Minuteman.RTM. Manual 986711 Dated 2/88 (pp. 8-9, Back/Front).
Hako.RTM.Minuteman.RTM. Advertisement 986712 Copyright 1987.
Advance Machine Company
Moore Chris K.
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