Water level and exchange system

Details Water level and exchange system Water level and exchange system

1990-10-31

1992-01-28

Nilson, Robert G.

Fluid handling

Systems

With pump

119 5, 137562, 2104162, B01F 504

Patent

active

050835874

ABSTRACT:
Disclosed is a system for replacing dirty aquarium water with fresh, clean aquarium water and making up for evaporation, thus keeping the aquarium water level constant. The inventive system includes a passageway for supplying clean water to an aquarium, which passageway has a bypass port leading to a throat designed to cause a pressure reduction. The throat is fluidly connected to an aquarium outlet located at the surface of the aquarium so that the reduction in pressure at the throat causes a suction effect to remove dirty water from the surface of the aquarium. Downstream of the throat, the dirty water is conveyed to a waste outlet.

REFERENCES:
patent: 3171427 (1965-03-01), McAlpine
patent: 3301486 (1967-01-01), Brock
patent: 3304564 (1967-02-01), Green
patent: 3598288 (1971-08-01), Posgate
patent: 4014052 (1977-03-01), Wolos
patent: 4610784 (1986-09-01), Reyniers
patent: 4826591 (1989-05-01), Macia

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