Freestanding aquarium filter

Details Freestanding aquarium filter Freestanding aquarium filter

1983-06-10

1986-07-22

Fisher, Richard V.

Liquid purification or separation

Structural installation

Closed circulating system

210282, 2104162, 2104931, 210456, 119 5, E04H 316

Patent

active

046018212

ABSTRACT:
An aquarium filter of the free standing, nesting type is provided with an improved magnetic coupling system to couple a drive motor to the impeller which pumps water through the filter. A ring-shaped magnet is secured to the motor shaft and a second magnet coupled to the impeller and carried within the filter housing is inserted into the space inside the first magnet. The magnets are maintained coplanar and the rotation of the motor is coupled to the pump impeller of the filter in a very efficient fashion.

REFERENCES:
patent: 3273717 (1966-09-01), Canterbury
patent: 3957634 (1976-05-01), Orensten et al.
patent: 3981555 (1975-06-01), Bennett et al.
patent: 4024064 (1977-05-01), Rakowicz et al.
patent: 4072616 (1978-02-01), Rohlig
patent: 4093547 (1978-06-01), Sherman et al.
patent: 4108775 (1978-08-01), Wilkes et al.
patent: 4188295 (1980-02-01), Burnett

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