Aquarium having improved filtration system

Animal husbandry – Aquatic animal culturing – Aquarium

Reexamination Certificate

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Reexamination Certificate

active

10960213

ABSTRACT:
An aquarium which includes a tank having a pump and an under gravel filter disposed in the tank below the pump. The under gravel filter includes a hollow bubble dispersing base plate having a perforated top surface and an overlying substrate. An air conduit is provided for introducing air into the pump. The pump is connected to the plate such as to pump blended oxygenated water and air into the interior of the plate to thereby cause oxygenated water and bubbles to exit upwardly through the perforated top surface of the plate and into and through the substrate. The pump includes a free floating magnetic impeller. A rotational torque generating unit is provided to rotate the impeller. The rotational torque generating unit includes a magnetic drive disk and a motor for rotating the magnetic drive disk. The pump and rotational torque generating unit are aligned with each other such that a magnetic field is established between the magnetic drive disk and the magnetic impeller, the magnetic field rotating upon rotation of the magnetic drive disk to thereby rotate the impeller.

REFERENCES:
patent: 2636473 (1953-04-01), Schwartz et al.
patent: 2871820 (1959-02-01), Hayden
patent: 2935199 (1960-05-01), Willinger
patent: 3119774 (1964-01-01), Arak
patent: 3814254 (1974-06-01), Schatz
patent: 3827560 (1974-08-01), Morton
patent: 3929101 (1975-12-01), Katz
patent: 4006711 (1977-02-01), Frank
patent: 4047847 (1977-09-01), Oikawa
patent: 4639314 (1987-01-01), Tyer
patent: 4735715 (1988-04-01), Willinger
patent: 4817561 (1989-04-01), Byrne et al.
patent: 4842727 (1989-06-01), Willinger et al.
patent: 4861468 (1989-08-01), Willinger et al.
patent: 4894151 (1990-01-01), Woltmann
patent: 4921614 (1990-05-01), Frickman et al.
patent: 4932786 (1990-06-01), Hihara et al.
patent: 4957623 (1990-09-01), Henzlik
patent: 4985181 (1991-01-01), Strada et al.
patent: 5039286 (1991-08-01), Point et al.
patent: 5055005 (1991-10-01), Kletschka
patent: RE33899 (1992-04-01), Tyer
patent: 5195877 (1993-03-01), Kletschka
patent: 5238367 (1993-08-01), Ellis et al.
patent: 5256282 (1993-10-01), Chang et al.
patent: 5269914 (1993-12-01), Englert
patent: 5282961 (1994-02-01), Ellis et al.
patent: 5313912 (1994-05-01), O'Dell
patent: 5470208 (1995-11-01), Kletschka
patent: 5603831 (1997-02-01), Hickok
patent: 5611679 (1997-03-01), Ghosh et al.
patent: 5658136 (1997-08-01), Mendler
patent: 5692885 (1997-12-01), Langer
patent: 5695651 (1997-12-01), Froud
patent: 5799612 (1998-09-01), Page
patent: 6015272 (2000-01-01), Antaki et al.
patent: 6027318 (2000-02-01), Shimanuki et al.
patent: 6030188 (2000-02-01), Nojiri et al.
patent: 6283061 (2001-09-01), Dunn
patent: 6447265 (2002-09-01), Antaki et al.
patent: 6468041 (2002-10-01), Ozaki
patent: 6551078 (2003-04-01), Huang
patent: 6575717 (2003-06-01), Ozaki et al.
patent: 6689315 (2004-02-01), Linker et al.

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