Liquid purification or separation – Structural installation – Closed circulating system
Patent
1979-06-28
1981-08-25
Granger, Theodore A.
Liquid purification or separation
Structural installation
Closed circulating system
2104162, E04H 320
Patent
active
042858135
ABSTRACT:
Aquarium filtration apparatus having a generally trough-shaped filter housing, the rear wall having a bracket portion for hanging on an aquarium, an impeller assembly having a drive magnet being positioned within the bottom of the filter housing with a motor assembly coupled to the undersurface of the bottom with a power driven magnet on the motor assembly in spaced proximate relation to effect magnetic coupling with the magnet of the impeller assembly. An intake assembly is provided in fluid communication with the impeller assembly and with the aquarium water for drawing water from the aquarium into the filter housing. In a first embodiment, the intake assembly is an intake tube having a portion within the filter housing. In a second embodiment, the intake assembly includes a filter chamber within the filter housing in fluid communication with the impeller assembly with an intake tube coupled to the filter chamber for drawing water from the aquarium into the chamber. A top cover is provided with a float having an indicator portion extending through the cover which is viewable when the water level rises to pivot the float. A filter cartridge may be utilized or filtration media may be retained between removable platforms.
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patent: 3321081 (1967-05-01), Willizer
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patent: 3719278 (1973-03-01), Koldeltz
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patent: 3892663 (1975-07-01), Wedenmann
patent: 4051033 (1977-09-01), Blare
Faris Edwin E.
Schmidt Sheldon P.
Stewart James B.
Woltmann Klaus W.
Granger Theodore A.
Metaframe Corporation
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