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Title:
PLEATED FLUID FILTER ELEMENT AND METHODS
Document Type and Number:
WIPO Patent Application WO/2015/157638
Kind Code:
A3
Abstract:
A filter element has an upstream and downstream side. A filter media assembly of the filter element has an upstream side and a downstream side and has a first filter media layer and a second filter media layer that is adjacent to the first media layer. A substantial portion of the first layer and second layer are uncoupled, and at least one of the first media layer and second media layer comprises binder fiber. The second media layer has a mean flow pore size equal to or smaller than the first media layer. A support layer system is adjacent to the downstream side of the filter media assembly, and a first wire mesh layer is adjacent to the support layer system. At least the first media layer, second media layer, support layer system, and first wire mesh cooperatively define pleats at a pleat packing density of greater than 125%.

Inventors:
BARSNESS, James P. (30730 County 8 Blvd, Cannon Falls, Minnesota, 55009, US)
JONES, Derek O. (15564 Vale Street NW, Andover, Minnesota, 55304, US)
Application Number:
US2015/025315
Publication Date:
October 15, 2015
Filing Date:
April 10, 2015
Export Citation:
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Assignee:
DONALDSON COMPANY, INC. (1400 West 94th Street, P.O. Box 1299Minneapolis, Minnesota, 55440-1299, US)
International Classes:
B01D29/07; B01D29/11; B01D29/21; B01D29/58; B01D39/08; B01D39/10; B01D39/20
Domestic Patent References:
2006-04-27
1997-09-04
Foreign References:
US20080053888A12008-03-06
EP0955078A11999-11-10
US4089783A1978-05-16
US20040026332A12004-02-12
US20030085165A12003-05-08
Attorney, Agent or Firm:
NIKHANJ, Rakhi D. (Pauly, Devries Smith & Deffner LLC,121 South 8th Street,TCF Tower, Suite 90, Minneapolis Minnesota, 55402, US)
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