Apparatus and method for filtering used engine coolant

Details Apparatus and method for filtering used engine coolant Apparatus and method for filtering used engine coolant

1995-08-01

1997-05-06

Walker, W. L.

Liquid purification or separation

Processes

Separating

210168, 2104165, B01D 35027

Patent

active

056267703

ABSTRACT:
A tank (A) stores pre-filtered anti-freeze liquid received from a pre-filter (B) for removing hydrocarbons carried within a drain pan (C) positioned beneath a radiator in an automotive vehicle. The pre-filtered anti-freeze liquid is introduced into a cartridge filter having a closure provided by a removable plug (D) for introducing diatomaceous earth into one of a serially arranged set of filters.

REFERENCES:
patent: 4015613 (1977-04-01), Papworth
patent: 4276914 (1981-07-01), Albertson
patent: 5228985 (1993-07-01), Wells et al.
patent: 5340471 (1994-08-01), Wilson et al.

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