The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2002
Filed:
Jun. 30, 2000
Thomas D. Raether, St. Louis Park, MN (US);
Steven A. Johnson, St. Paul, MN (US);
Kristofer G. Kosmider, Bloomington, MN (US);
Donaldson Company, Inc., Minneapolis, MN (US);
Abstract
An air filter assembly for removing particulate matter from an incoming dirty air stream. The assembly includes a housing having an inlet, an outlet, a dirty air chamber and a clean air chamber and an elongated filter element arranged within the dirty air chamber constructed to remove particulate matter from an incoming air stream. The dirty air chamber has side walls, at least one of which is non-planar and has a distended portion. The distended side wall increases the volume within the dirty air chamber, thus providing for increased dirty air processing and/or decreased dirty air velocities.