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. 07, 2020
Filed:
Oct. 22, 2018
Donaldson Company, Inc., Minneapolis, MN (US);
Giancarlo Izzi, Minneapolis, MN (US);
Robert M. Rogers, Minnetonka, MN (US);
Brad E. Kahlbaugh, Bloomington, MN (US);
Timothy O. Winters, Nowthen, MN (US);
Keith Alderson, Minneapolis, MN (US);
Donaldson Company, Inc., Minneapolis, MN (US);
Abstract
Disclosed are filter media packs having a single layer of a high loft filter media and a single layer of a low loft filter media, the filter media pack characterized by the absence of oil added to the filter media pack, the filter media pack capable of filtering air laden particulates from an air stream at greater than 94% efficiency at air stream flow rates of between about 100 feet per minute and 3000 feet per minute. Also disclosed are filter assemblies formed from the filter media pack, and methods of using the filter assemblies.