Liquid purification or separation – Structural installation – Closed circulating system
Patent
1980-01-21
1982-01-19
Granger, Theodore A.
Liquid purification or separation
Structural installation
Closed circulating system
210335, 2104162, E04H 320
Patent
active
043115888
ABSTRACT:
A filter for use with an aquarium is provided which is in direct fluid communication with the water of the aquarium, Only mechanical plug and socket type connections are used to connect the filter housing to a submersible centrifugal pump and to connect a closure member of the filter housing to a housing main body. No separate seal means are used. Inlet connecting means as well as outer connecting means of the filter housing are both provided in the closure member. Support means are provided to support the filter housing in such vertical position that the joint between the closure member and the housing main body of the filter housing just immerges into the water of the aquarium. Thus, the major portion of the filter housings projects above the surface of the water of the aquarium leaving a maximum of water volume accessible to fish and providing a field of view of maximum size. Thus, an extremely attractive, fail-safe and low cost filter is provided.
REFERENCES:
patent: 3224585 (1965-12-01), Scavuzzo et al.
patent: 3557958 (1971-01-01), Baldwin
patent: 3567023 (1971-03-01), Buckman et al.
patent: 3610416 (1971-10-01), Otto
patent: 3719281 (1973-03-01), Dieringer
patent: 3768659 (1973-10-01), Miller
patent: 3859216 (1975-01-01), Sisson et al.
patent: 3935106 (1976-01-01), Lipner
patent: 3945923 (1976-03-01), Rogers
patent: 3982520 (1976-09-01), Wheeler
patent: 3988787 (1976-11-01), Colee
patent: 4036756 (1977-07-01), Dockery
patent: 4082673 (1978-04-01), Cilento
patent: 4093547 (1978-06-01), Sherman et al.
"Das Korallenaquarium," 1965, p. 13, Von Jurgen Grobe, Alfred Kernen Verlag Stuttgart.
Granger Theodore A.
Philpitt Fred
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