Liquid purification or separation – Filter – Movable medium
Reexamination Certificate
2006-08-29
2006-08-29
Popovics, Robert James (Department: 1724)
Liquid purification or separation
Filter
Movable medium
C210S123000, C210S167150, C210S392000, C210S396000, C210S407000, C210S416200, C210S420000, C210S424000, C210S425000, C210S427000
Reexamination Certificate
active
07097046
ABSTRACT:
A filter assembly for an aquarium has a self-cleaning filter. A fine mesh filter screen is disposed between an inlet and an outlet for filtering solid matter from the water that is pumped from the aquarium, through the filter, and back to the aquarium. When the filter screen is sufficiently loaded, or according to a set schedule, the solid matter is suctioned off the filter screen with a vacuum assembly. For that purpose, the water flow is first diverted, the filter screen is rotated, and the vacuum assembly is turned on. After the screen has been vacuumed, the vacuum assembly is once more turned off and the water flow is redirected to pass through the filter screen.
REFERENCES:
patent: 1264990 (1918-05-01), Stephens
patent: 1914742 (1933-06-01), Hillier
patent: 1992005 (1935-02-01), Goldsborough
patent: 2302449 (1942-11-01), Laughlin
patent: 2860785 (1958-11-01), Gardner
patent: 3347379 (1967-10-01), Miller
patent: 4090965 (1978-05-01), Fuchs
patent: 4152265 (1979-05-01), Meyers
patent: 4248709 (1981-02-01), Irving
patent: 4639315 (1987-01-01), Fuchs et al.
patent: 4772398 (1988-09-01), Sando et al.
patent: 4818402 (1989-04-01), Steiner et al.
patent: 4867879 (1989-09-01), Muller
patent: 4898671 (1990-02-01), Fux et al.
patent: 5213685 (1993-05-01), Padovan
patent: 5268095 (1993-12-01), Barzuza
patent: 5300225 (1994-04-01), Fischer
patent: 5362384 (1994-11-01), Whetsel
patent: 5374360 (1994-12-01), Weis
patent: 5401405 (1995-03-01), McDougald
patent: 5433843 (1995-07-01), Calabrese
patent: 5558042 (1996-09-01), Bradley et al.
patent: 5641398 (1997-06-01), Huber et al.
patent: 5779887 (1998-07-01), Rector et al.
patent: 5876612 (1999-03-01), Astrom
patent: 6090298 (2000-07-01), Weis
patent: 6572763 (2003-06-01), Gorshing
patent: 6808076 (2004-10-01), Villares Lenz Cesar
patent: 2004/0112806 (2004-06-01), Anderson
patent: 2004/0124158 (2004-07-01), Smith et al.
patent: 2005/0194326 (2005-09-01), Calabrese
patent: 2005/0230293 (2005-10-01), Anderson
Greenberg Laurence A.
Locher Ralph E.
Popovics Robert James
Stemer Werner H.
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