Sandra Ann Haynes

US Patent:

52289850, Jul 20, 1993

Filed:

Jun 13, 1991

Appl. No.:

7/714926

Inventors:

John Wells - Culver City CA
Robert E. Lebo - Silverado CA
Roger Ignon - Pales Verdes Estates CA
Steve G. Hauser - Calabasas CA
Dan R. Haynes - Costa Mesa CA
Sandra Haynes - Costa Mesa CA
Robert L. Serber - Sherman Oaks CA

Assignee:

LaRoche Filter Systems, Inc. - Costa Mesa CA

International Classification:

B01D 2917
B01D 3514

US Classification:

210167

Abstract:

A portable cooking oil filtering unit has an outer housing completely enclosing all the filter stages and providing access to the stages for maintenance purposes via doors and removable closures. The housing has an inlet conduit for connection to a cooking vat drain outlet, and an outlet conduit for returning filtered oil to the cooking vat. A first stage filter in the housing is connected to the inlet conduit for filtering relatively large size particles from the oil, and the filtered oil is connected to at least one additional filter stage for filtering smaller particles from the oil. A pump is connected downstream of the final filter stage, between that filter stage and the outlet conduit, for drawing oil through the filter stages under vacuum rather than pumping it through the filters under positive pressure. One of the filter stages is accessible to allow oil-life enhancing chemicals to be added to the oil.