Daniel I Morrison

US Patent:

58535772, Dec 29, 1998

Filed:

Sep 22, 1997

Appl. No.:

8/934677

Inventors:

John W. Gizowski - Lagrange Park IL
Glenn T. Gajda - Grayslake IL
Daniel J. Morrison - Arlington Heights IL
Louis P. Macino - Carol Stream IL
Joseph A. Geisler - Des Plaines IL

Assignee:

SPX Corporation - Muskegon MI

International Classification:

B01D 3530
B01D 35027
B01D 2923

US Classification:

210168

Abstract:

A fluid filter comprising a housing having first and second plastic cover members each having a peripheral flange and joined together to define a housing chamber having an inlet and an outlet. A filtration media is disposed in the housing chamber between the inlet and the outlet. The peripheral flange of the first cover member has a rib. The peripheral flange of the second cover member has a gutter opposed to the rib. The filtration media has an edge portion compressed between the rib and the gutter to form a marginal seal preventing fluid entering the inlet from reaching the outlet without passing through the filtration media. The edge portion of the filtration media is pierced and anchored by spikes which project from the rib and extend into the gutter. One of the cover members has a welding rib welded to the other cover member by a process of orbital frictional vibration welding to secure the cover members together.