Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Transparent
Patent
1990-05-31
1992-01-28
Cintins, Ivars
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Transparent
210151, 210169, 2104162, 119 5, A01K 6304
Patent
active
050841645
ABSTRACT:
A filter assembly and housing for use with an aquarium includes a housing formed of two molded halves of high impact thermoplastic resin each having a flange and wherein the flanges are fastened together to provide a complete housing and including a lid structure for the housing. The housing halves include a number of pairs of horizontal inwardly extending shelves on each half which provide supports for internal components including a DLS filter element and a plastic grid support therefor, a plate supporting an elbow member receiving contaminated water from the aquarium and an adjustable diffuser attached to the elbow for distributing the water over the filter element, a second plastic grid support below the filter element and additional filtering and/or buffering material supported thereon, a window and a channel molded into the front half of the housing and a float operated low water indicator movable in the channel to indicate a low water condition by appearing in the window, a protein skimmer in the housing connected to receive contaminated water, and connections to an external pump to pump cleaned water back to the aquarium.
REFERENCES:
patent: 3965007 (1976-06-01), Conn et al.
patent: 4039448 (1977-08-01), Etani
patent: 4606821 (1986-08-01), D'Imperio
patent: 4687575 (1987-08-01), Grose
patent: 4851112 (1989-07-01), Schlensleer
patent: 4861465 (1989-08-01), Augustyniak
patent: 4915828 (1990-04-01), Meyers et al.
patent: 4988436 (1991-01-01), Cole
patent: 5006230 (1991-04-01), Votava, III et al.
Cintins Ivars
Popovics Robert James
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