Knockdown type filtering device

Details Knockdown type filtering device Knockdown type filtering device

1977-06-29

1979-01-09

Granger, Theodore A.

Liquid purification or separation

Structural installation

Closed circulating system

119 3, E04H 316

Patent

active

041337603

ABSTRACT:
A filtering device for use in a water or aquarium tank for fish such as goldfish. The device comprises a plurality of filtering units disposed within the water tank, a connecting pipe for connecting the filtering units, a unit for introducing waste water into the filtering units, and a communicating member for introducing water into each of the filtering units. The filtering units may be detachably connected by a connecting pipe depending on the capacity of the water tank. The connecting pipe is formed with a number of perforations and interiorly formed with a water passage.

REFERENCES:
patent: 1810965 (1931-06-01), Hopkins
patent: 2016033 (1935-10-01), Christafferson
patent: 3171808 (1965-03-01), Todd
patent: 3430771 (1969-03-01), Dreher
patent: 3848567 (1974-11-01), Gaiber, Jr.
patent: 3864262 (1975-02-01), Lany et al.
patent: 3957634 (1976-05-01), Orensten et al.
patent: 3964890 (1976-06-01), Bonn
patent: 4048073 (1977-09-01), Rose
patent: 4049406 (1977-09-01), Rivers

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