Liquid purification or separation – Processes – Separating
Patent
1996-06-17
1997-09-16
Popovics, Robert
Liquid purification or separation
Processes
Separating
210233, 210248, 210DIG17, 184 624, 123196A, 123198DA, B01D 3516
Patent
active
056676999
ABSTRACT:
A method and device for removing waste oil from a cartridge-type oil filter with the filter including a plurality of openings formed therein in a predetermined pattern and an oil retention gasket disposed within the filter. The device includes an elongate body portion formed of resilient, bendable material defining a longitudinally extending central body formed with a predetermined lengthwise dimension sufficient to span a distance between two of the openings and two end portions formed integrally with the central body and projecting oppositely outwardly therefrom with the end portions being sized to fit within the openings and being of a sufficient lengthwise dimension to engage and displace at least a portion of the gasket to allow waste oil to be poured or otherwise drained from the filter cartridge. The method includes providing such a device, inserting the end portions into openings in the filter, pressing the end portions inwardly to displace at least a portion of the gasket, and pouring or otherwise draining waste oil from the filter.
REFERENCES:
patent: 4865156 (1989-09-01), Poling
patent: 4967776 (1990-11-01), Folmar
patent: 4997554 (1991-03-01), Frostick
patent: 5039403 (1991-08-01), Frostick
patent: 5114573 (1992-05-01), Frostick
patent: 5214830 (1993-06-01), Rozycki
patent: 5249608 (1993-10-01), Hua
patent: 5390823 (1995-02-01), Kilgore
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