Liquid purification or separation – Structural installation – Closed circulating system
Patent
1984-03-13
1984-12-25
Therkorn, Ernest G.
Liquid purification or separation
Structural installation
Closed circulating system
210196, 210232, 210282, 2104162, E04H 320, B01D 3502
Patent
active
044902506
ABSTRACT:
The present invention provides a fluid filtering system for an aquarium having a tank in which water and marine animals are contained. The filtering system includes a pump, a filter element and a valve assembly fluidly connected therebetween. In addition, a pump actuator is movable between a first position and a second position in which the pump inlet and outlet are inverted. Actuation of the valve assembly to a first position and with the pump actuator in its first position allows the pump to pump water from the aquarium tank under pressure to and through the filter element after which the cleaned water is returned to the aquarium tank. Conversely, with the valve assembly and pump actuator in their second positions, the pump draws water from the aquarium tank, through the filter element and the cleaned water is then returned by the pump to the aquarium tank. Pressure pumping, i.e. with the valve assembly and pump actuator in their first positions, enables self priming of the filter system whereas vacuum pumping, i.e. with the valve assembly and pump actuator in their second positions, reduces the amount of harmful gasses dissolved in the water.
REFERENCES:
patent: 3549015 (1970-12-01), Willinger
patent: 3685919 (1972-08-01), Speck
patent: 3747762 (1973-07-01), White
patent: 4039453 (1977-08-01), Horvath
patent: 4105555 (1978-08-01), Pease
patent: 4268387 (1981-05-01), Hall
Therkorn Ernest G.
Vortex Innerspace Products
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