Magnetically coupled aquarium filter

Details Magnetically coupled aquarium filter Magnetically coupled aquarium filter

1977-01-19

1978-06-06

Granger, Theodore A.

Liquid purification or separation

Structural installation

Closed circulating system

210249, 248215, E04H 316

Patent

active

040935477

ABSTRACT:
A filter apparatus for aquariums consisting of two separable units. Within a filter unit is located the water filtering means and a pump for circulating the water from the aquarium through the filter means and back to the aquarium. Mounted upon a power unit is a motor having an output shaft which at one end is provided with a magnet. The power unit and filter unit are both hung from the rim of a wall of the aquarium by means of interlocking lip structures. The units are constructed such that the filter unit is seated in a "nesting" fashion upon the power unit, thus the power unit and filter unit are positioned in close proximity to one another and maintained in proper alignment such that the magnetic field of the magnet on the motor shaft magnetically influences a flywheel of the water pump and causes the latter to pump water when the motor is energized.
Because of the "nesting" relationship between the filter unit and the power unit, the filter unit may be serviced merely by lifting it away from the power unit which retains its hanging position on the aquarium rim. Replacement of the serviced filter unit is effected by simply returning the filter unit to its original hanging position. Proper alignment is insured by the "nesting" construction. Thus, to service the filter unit, the power unit need not be disturbed, unless repair thereof is required or unless the aquarium is to be moved to another location.

REFERENCES:
patent: 3273717 (1966-09-01), Canterbury
patent: 3321081 (1967-05-01), Willinger
patent: 3392836 (1968-07-01), Willinger
patent: 3477679 (1969-11-01), Loutz
patent: 3511376 (1970-05-01), Sesholtz
patent: 3512646 (1970-05-01), Willinger
patent: 3516543 (1970-06-01), Willinger
patent: 3738494 (1973-06-01), Willinger et al.

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