End cap which will accommodate flow reversal

Details End cap which will accommodate flow reversal End cap which will accommodate flow reversal

1984-06-29

1986-12-02

Fisher, Richard V.

Liquid purification or separation

With drip, overflow or content draining feature

210303, 210312, 210315, B01D 3602

Patent

active

046263489

ABSTRACT:
A filter unit uses an end cap design to allow flow reversal from inside-out or outside-in and accommodates a dual collection zone or sump collection bowl. The spin-on filter unit has relieved portions on the end cap to define contaminant channels such that the space between an annular filter media and the filter unit housing is connected to one of the sumps. The contaminant channels allow for prefiltering contaminant removal when the filter connected for radially inward flow and allows for post filtering contaminant removal when the filter unit is connected for radially outward fuel flow.

REFERENCES:
patent: 2524336 (1950-10-01), Vokes
patent: 2651414 (1953-09-01), Lawson
patent: 3228527 (1966-01-01), McPherson
patent: 3312351 (1967-04-01), Kasten
patent: 3508658 (1970-04-01), McVay
patent: 3726403 (1973-04-01), Shaltis
patent: 3859216 (1975-01-01), Sisson et al.
patent: 4253954 (1981-03-01), Midkiff et al.
patent: 4292179 (1981-09-01), Stone et al.
patent: 4502955 (1985-03-01), Schaupp
patent: 4502956 (1985-03-01), Wilson et al.

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