Drain pipe filter

Details Drain pipe filter Drain pipe filter

1989-02-22

1990-06-19

Spear, Frank

Liquid purification or separation

Structural installation

Grated inlet surface drain

210316, 210485, 2105021, 210505, B01D 1702, B01D 2906

Patent

active

049351320

ABSTRACT:
A drain pipe filter which includes a wire cage, first and second circular rims and a plurality of oil absorbing elongated fibers. The filter is placed within a drain pipe and functions to absorb oily contaminants exiting a storm drain. The first and second circular rims which are formed of a flexible material are molded integrally with the wire cage providing a water tight seal and flexibility within the environment of the drain pipe. The oil absorbing elongated fibers are adhered to the wire cage in a plurality of locations and are also adhered to an inner conical wire which is integrally formed with the second rim.

REFERENCES:
patent: 699176 (1902-05-01), Hough
patent: 1675714 (1928-07-01), Koch
patent: 2246012 (1941-06-01), Sanders
patent: 2263259 (1941-11-01), Boosey
patent: 2615526 (1952-10-01), Lane
patent: 4032688 (1977-06-01), Pall
patent: 4240908 (1980-12-01), Swain et al.
patent: 4261823 (1981-04-01), Gallagher et al.
patent: 4358371 (1982-11-01), Jameson et al.
patent: 4419232 (1983-12-01), Arntyr et al.
patent: 4689145 (1987-08-01), Mathews et al.

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