Reversible-flow filter assembly

Details Reversible-flow filter assembly Reversible-flow filter assembly

1990-06-07

1991-10-15

Silverman, Stanley S.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Maintaining stream pressure or flow

210411, 2104161, 210436, B01D 3530

Patent

active

050572156

ABSTRACT:
A reversible-flow filter assembly to be installed into a flow conduit, has a filter housing with a housing inner wall and an outlet socket projecting coaxially thereto centrally into the interior of the filter housing. Further, the filter housing has a guiding member arranged coaxially thereto but spaced therefrom in the filter housing. The interspace between outlet socket and guiding member is bridged by a filter forming an annulus. The inlet is connected to the annulus. A suction device engages the outer surface of the filter with a limited suction opening. The suction device forms a housing fixed annulus, which is connected to the suction opening engaging the filter and can be connected to the drain through an outlet valve. The filter is located in a filter support which is movably guided on the outlet socket by a first guiding element and on the guiding member and in the suction device by a second guiding element. A control pressure chamber below the second guiding element is connected to the annulus. The filter support is loaded by a spring.

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