Liquid purification or separation – Flow – fluid pressure or material level – responsive – Fluid pressure responsive by-pass
Patent
1984-08-06
1986-03-04
Therkorn, Ernest G.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Fluid pressure responsive by-pass
210232, 210315, 210452, 210484, 210487, 210489, 21049701, B01D 2710
Patent
active
045740470
ABSTRACT:
A fluid filtering device comprising a housing having an open top and defining an interior chamber while an inlet and an outlet on the housing are open to the chamber. A filter bag is removably insertable into the chamber through the open top of the housing and to a filtering position in which the filter element is positioned in between the inlet and the outlet. A rim around the outer periphery of the filter bag engages an inwardly extending flange formed on the housing to secure the filter bag to the housing. A cover is movable with respect to the housing between an open and a closed position so that in its closed position, the cover closes the open top of the housing. A tubular element is secured to the cover which engages the filter bag and pushes the filter bag away from the open top of the housing and to its filtering position as the cover is moved to its closed position. In the preferred form of the invention, a pressure responsive valve assembly bypasses fluid directly from the inlet and to the outlet when the filter bag is excessively clogged.
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