Patent ID: 9254458
Filing Date: 2016-02-09
CPC Classification: B01D

Claim Text:
1. A filter having a filter housing, the filter housing comprising: a) an essentially horizontal partition wall dividing the filter housing into a clean gas chamber and a dust chamber disposed below the clean gas chamber, the partition wall defining a plurality openings therethrough; b) a plurality of filter elements secured to and extending downwardly from the partition wall into the dust chamber; c) an inlet in fluid communication with the dust chamber, the inlet part being configured to permit passage of a dust-containing flow of gas therethrough into the dust chamber; d) an outlet in fluid communication with the clean gas chamber for directing a cleaned gas flow out of the filter housing; and e) a generally cylindrical barrier proximate the inlet disposed between the inlet and the dust chamber surrounding the downwardly extending filter elements, the inlet, cylindrical barrier, dust chamber, and filter elements cooperating to define a flowpath wherein incoming gas into the filter housing is conveyed through the inlet, past the cylindrical barrier filter, through the filter elements, upwardly through the plurality of openings into the clean-gas chamber and out of the filter housing through the outlet, wherein the inlet is divided by the generally cylindrical barrier into a first portion and a second portion, such that the first portion of the inlet is defined over a top of the generally cylindrical barrier into the dust chamber, and the second portion of the inlet is defined under a bottom of the generally cylindrical barrier into the dust chamber, the first portion of the inlet having a flowpath entering the dust chamber over the top of the generally cylindrical barrier defined by a downwardly oriented gas flow, and the second portion of the inlet having a flowpath entering the dust chamber under the bottom of the generally cylindrical barrier defined by an upwardly oriented gas flow, the first portion above the generally cylindrical barrier having a larger cross-section than the second portion below the generally cylindrical barrier.