Dustex Corporation

Robert R Edwards

William J Klimczak

A dust collecting apparatus wherein a plurality of elongate filter elements are periodically cleaned by a reverse pulse cleaning system which directs a reverse pulse of air through the open end of each filter element so as to remove contaminants which have collected on its external surface. The reverse pulse cleaning system has an air delivery pipe above each of the filter elements, and each air delivery pipe includes an air delivery nozzle assembly which includes at least one pair of transverse pipe sections which are transversely aligned and extend in opposite directions from the air delivery pipe, to define a cross-like configuration in plan view. A plurality of apertures are disposed in a linear line along the air delivery pipe, and at least one aperture is disposed in each of the transverse pipe sections. By this arrangement, the cross-sectional configuration of the reverse pulse of air entering into the top of each filter element may be predetermined, so as to ensure that the pulse properly impacts the interior of the filter element and effectively removes the collected contaminants.

Dust collecting apparatus having reverse pulse filter cleaning capability

This invention relates to self cleaning dust collectors having top mounted filter cartridges. The top mounted filter cartridges include a top mounting plate having an annular flange and an outer peripheral lip to support and carry a sealing gasket. The outer peripheral lip provides lateral support for the gasket under the pressures involved during the operation of the dust collector, and it also serves to prevent over compression of the gasket. The dust collector is further provided with a reverse pulse air cleaning system which includes an air delivery pipe located above the filter cartridges, and with the air delivery pipe being spaced from the dividing wall a sufficient distance to allow for upward removal and easy replacement of the filter cartridges without extensive assembly and disassembly of the dust collector.

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Fort Mill, SC, United States of America

Robert R Edwards