Patent ID: 6514354
Filing Date: 2003-02-04
Classification: A47L,B05B,B08B,E01H

Abstract:
In a method of assembling a cleaning device including a cyclonic power unit having a rotating member in combination with a stationary unit wherein the improvement comprises the steps of:providing a receiving facility on said stationary unit, connecting the cyclonic power unit to said receiving facility by at least one flexible conduit; providing the cyclonic power unit with a frame that is maneuvered over a flat surface; mounting a generally disc-shaped housing on said frame; providing said generally disc-shaped housing with an annular channel at its periphery; mounting a spindle having a longitudinal axis and a hub portion on said disc-shaped housing for rotation about the spindle's longitudinal axis such that said hub portion is aligned with said annular channel; providing a power mechanism for rotating said spindle about said longitudinal axis; securing a plurality of straight rods to said spindle such that they extend normal to said longitudinal axis and terminate in free ends; providing an associated curved blade, having ends and a convex and a concave surface, for each straight rod: connecting one end of each curved blade to said spindle such that its convex surface is the leading surface as the spindle is rotated; connecting the other end of each curved blade to said free end of its associated straight rod such that the free end of each curved blade extends into said annular channel; providing a discharge outlet in said annular channel through which matter picked up from said flat surface is transmitted through said flexible conduit to said receiving facility.