Patent Number: 6,165,572

Title: Filter material construction and method

Abstract: A preferred filter media is provided. The media includes a fine fiber web secured to the surface of a coarse fiber support. A preferred filter media, comprising multiple layers of fine fiber media separated by coarse fiber support, is provided. Advantageous filter constructions result and are provided. Also according to the disclosure, methods for using such arrangements to filter are provided.

Inventors: Kahlbaugh; Brad (Roseville, MN), Dudrey; Denis J. (Bloomington, MN)

Assignee: Donaldson Company, Inc.

International Classification: B01D 46/10 (20060101); B01D 39/16 (20060101); B01D 46/12 (20060101); B01D 39/20 (20060101); B01D 46/52 (20060101); B01D 27/00 (20060101); B01D 27/06 (20060101); B32B 5/12 (20060101); B32B 5/22 (20060101); B32B 5/26 (20060101); D04H 13/00 (20060101); B01D 024/00 (); B32B 003/28 ()

Expiration Date: 12/26/2017