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:
Sep. 08, 1998
Filed:
Oct. 23, 1995
Applicant:
Inventors:
James Leonard Berkhoel, Woodbury, MN (US);
Dolan D Bartels, Cresco, IA (US);
Michael S Bergeson, Cresco, IA (US);
Bruce A Johnson, Lake Elmo, MN (US);
Steven D Schmeichel, Invergrove Heights, MN (US);
Assignee:
Donaldson Company, Inc., Minneapolis, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ;
U.S. Cl.
CPC ...
55598 ; 55502 ; 55510 ;
Abstract
The invention is directed toward a filter element for mounting on an air filter system. The filter element has a central air flow aperture and a first slide or support construction. The slide or support construction has a central rim, which is positioned within the central air flow aperture and is oriented to support the filter element.