US 12,311,302 B2
Enlarged opening filter bags, support assemblies, and filter bag assemblies
David V. Gutman, Brussels (BE); Massimo Movia, Tervuren (BE); Eric W. E. Collin, Bilzen (BE); Steven A. Johnson, Williams, MN (US); Benny J. B. Mombaerts, Boortmeerbeek (BE); Gabriel J. Safarian, Deephaven, MN (US); David L. Van Eylen, Heverlee (BE); and Iman Vezvaei, Brussels (BE)
Assigned to Donaldson Company, Inc., Bloomington, MN (US)
Filed by Donaldson Company, Inc., Bloomington, MN (US)
Filed on Mar. 14, 2022, as Appl. No. 17/694,481.
Claims priority of provisional application 63/161,604, filed on Mar. 16, 2021.
Prior Publication US 2022/0297041 A1, Sep. 22, 2022
Int. Cl. B01D 53/02 (2006.01); B01D 46/00 (2022.01); B01D 46/02 (2006.01); B01D 46/24 (2006.01)
CPC B01D 46/0005 (2013.01) [B01D 46/02 (2013.01); B01D 46/2403 (2013.01); B01D 2201/0415 (2013.01); B01D 2201/34 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A filter bag comprising a tubular body formed of filter media configured to remove particulate matter from air passing through the filter media, the tubular body extending from a closed end to a bag opening along a bag axis coincident with a central axis of the tubular body, wherein a sealing cuff extends around a perimeter of the bag opening, and wherein a reference bag length measured along the bag axis between a reference plane oriented perpendicular to the bag axis and the bag opening changes when moving around the perimeter of the bag opening.