Liquid purification or separation – Structural installation – Closed circulating system
Patent
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
Fuerst Charles O.
Sherman Robert M.
Aquaria Inc.
Fisher Richard V.
Millard Wanda L.
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