1
Denis G Littrell: Vertical media bed filter and method of cleaning filter panels. Rexnord, John M Neary, Vance A Smith, June 5, 1984: US04452613 (7 worldwide citation)

A vertical media bed dust collector in which the media bed of a filter panel is rejuvenated when necessary by interrupting the gas flow through the panel, withdrawing the filter media from the panel, separating the agglomerated dust from the filter media, returning the filter media to the filter pan ...


2
Denis G Littrell: Apparatus and method for removing finely divided solids from gases. Rexnord, Schwartz Jeffery Schwaab Mack Blumenthal & Koch, November 17, 1981: US04300921 (5 worldwide citation)

Disclosed is a granular bed dust collector system in which the granular bed of a filter panel is rejuvenated when necessary by interrupting the gas flow through the panel, withdrawing the granular filter media from the panel, dedusting the filter media to dislodge and separate the collected dust fro ...