Jerry A Govert

US Patent:

50374559, Aug 6, 1991

Filed:

Sep 14, 1990

Appl. No.:

7/582075

Inventors:

Irwin B. Scheineson - Cincinnati OH
Jerry A. Govert - Terrace Park OH

Assignee:

The Great American Filter Company - Cincinnati OH

International Classification:

B01D 4600
B03C 302

US Classification:

55103

Abstract:

An air filter assembly includes three layers of alternating layers of woven polypropylene and polyurethane sandwiched together in a removable plastic frame. The polypropylene layers are woven in a honeycomb pattern. Each successive layer acquires an opposite electrostatic charge. The air filter assembly mechanically and electrostatically filters dust from air.