Additional trough for an aquarium filter container

Liquid purification or separation – Structural installation – Closed circulating system

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Details

210282, 210283, 210284, 210233, 210255, 210261, 210473, 206503, 119259, A01K 6304

Patent

active

054096030

ABSTRACT:
An additional trough for an aquarium filter container comprising a rectangular body having an open top and consisting of a bottom panel, two long-side panels and two short-side panels, said bottom panel being formed with a plurality of equidistant longitudinal and transverse grooves making a plurality of intersecting points, a perforation being formed on alternate one of said intersecting points and equally distant from each other, said bottom panel further having at the outer side a protruded portion which is smaller than the open top of said rectangular body in area and extends outwardly to a flange and downwardly to form four elongated projections, said bottom panel having an outer side formed with a plurality of annular portions concentric with corresponding perforations.

REFERENCES:
patent: 3369659 (1968-02-01), Ettlinger, Jr.
patent: 3468288 (1969-09-01), Cassil
patent: 3768651 (1973-10-01), Streeter
patent: 3768652 (1973-10-01), Jardim
patent: 3848567 (1974-11-01), Garber, Jr.
patent: 3994807 (1976-11-01), Macklem
patent: 4155451 (1979-05-01), Miller
patent: 4728504 (1988-03-01), Nichols
patent: 4760921 (1988-08-01), Licari
patent: 5026477 (1991-06-01), Yen

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