Patent ID: 9421481
Filing Date: 2016-08-23
CPC Classification: B01D

Claim Text:
1. A filtering device, comprising: a filter housing having a base plate; and a plurality of tapered filter candles, each of said filter candles having a body and extending along a longitudinal axis, said filter candles being arranged adjacent to one another in rows in said filter housing with said longitudinal axes thereof being parallel to one another, said filter candles having shapes deviating from circular cylinders by being tapered along at least parts of lengths thereof along said longitudinal axes such that said filter candles have cross-sectional sizes changing at least in part from large axial ends to small axial ends, said filter elements being oriented in said filter housing such that said large axial ends are paired with said small axial ends of said filter candles that are adjacent and such that said filter candles that are adjacent are tapered in opposite directions along said longitudinal axes thereof, said filter candles being grouped as densely packed, said filter candles in a first set of said rows being oriented with said small axial ends adjacent said base plate and in a second set of said rows with said large axial ends adjacent said base plate, said first and second sets of rows being sequential and being laterally offset relative to said longitudinal axes of one another such that sequential ones of said rows of said first and second sets have said filter candles of one of said rows of said first set inside gaps between said filter candles of said second set in an adjacent one of said rows.