James Kent Benson

US Patent:

6746517, Jun 8, 2004

Filed:

May 31, 2001

Appl. No.:

09/871156

Inventors:

James D. Benson - Bloomington MN
Douglas G. Crofoot - Burnsville MN
Mark A. Gogins - Roseville MN
Thomas M. Weik - Deephaven MN

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D 3916

US Classification:

95273, 55486, 55487, 55527, 55528

Abstract:

The use of fine fiber or fiber having a fiber diameter of about 0. 0001 to 0. 5 microns has become an important design tool for filter media. Common filter media have been prepared with a layer of fine fiber on typically formed the upstream or intake side of the media structure. The fine fiber increases the efficiency of filtration by trapping small particles which increases the overall particulate filtration efficiency of the structure. Improved fine fiber structures have been developed in which a controlled amount of fine fiber is placed on both sides of the media to result in an improvement in filter efficiency but a substantial improvement in lifetime.

Address:

2901 Cleveland St NE, Minneapolis, MN 55418

VIN:

1XTASDL1471000002

Make:

Renault

Model:

Alliance 2dr Sedan L 4-S

Year:

2007