Filter assembly with shut off and filter element therefor

Details Filter assembly with shut off and filter element therefor Filter assembly with shut off and filter element therefor

1983-12-19

1985-07-16

Therkorn, Ernest G.

Liquid purification or separation

With repair or assembling means

Removable treatment part with normally disabled flow controller

210235, 210429, 210453, 210455, 210457, 21049701, 55314, 55379, B01D 2710, B01D 3502, B01D 3514

Patent

active

045295140

ABSTRACT:
A filter assembly includes a slidable tubular member which in a first position provides for flow communication from an inlet passage through a filter element to a filter chamber outlet. Upon removal of the filter housing and filter element the tubular member is biased to a second position to effect a flow shut off between the inlet passage and the tubular member. The filter assembly may further include an outlet passage in flow communication with the inlet passage, and a valve seat is axially aligned with the tubular member and disposed between the inlet passage and outlet passage. A valve member on the end of the tubular member is engageable with the valve seat to preclude flow between the inlet passage and outlet passage when the tubular member is in the first position and providing for flow communication between the inlet passage and the filter chamber outlet.

REFERENCES:
patent: 1218848 (1917-03-01), Foster
patent: 1511726 (1924-10-01), Heinze
patent: 1720380 (1929-07-01), Schulze
patent: 1917203 (1933-07-01), Heinz
patent: 2371895 (1945-03-01), Kingman
patent: 3319791 (1967-05-01), Horne
patent: 3633757 (1972-01-01), Madern
patent: 3715032 (1973-02-01), Nicko
patent: 3852196 (1974-12-01), Szpur
patent: 4130622 (1978-12-01), Pawlak
patent: 4267039 (1981-05-01), Ryan

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