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US 9,751,036 B2Granted
Filter cartridge; components thereof; and methods
AssigneeDonaldson Company, Inc.
InventorsThomas D. Raether, Brian Zauner, Mark Belcher, Gabriel Safarian
Life of this patent
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Abstract
Z-filters capable of cleaning particulate matter from airflow streams in dust collectors, including reverse flow, reverse air, and reverse pulse systems.
Claims7
An air filter cartridge comprising:
- (a) a coiled media pack having a first flow face and an opposite second flow face;
- the media pack including:
- (i) a set of inlet flutes open at the first flow face to passage of air to be filtered therein;
- (ii) a set of outlet flutes open at the second flow face;
- (iii) the media pack being closed to flow of unfiltered air into the first flow face and then outwardly from the second flow face without filtering;
- (b) the media pack having first and second rounded ends with first and second straight sides in complete extension therebetween;
- and
- (i) the first rounded end having a greater radius than the second rounded end.
5 more elements
Dependencies are inferred from the claim text.