Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Fluid pressure responsive
Patent
1992-09-28
1995-02-14
Drodge, Jospeh W.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Fluid pressure responsive
210106, 210108, 210120, 210193, 21033301, 210411, B01D 2966, B01D 2970, B01D 35143
Patent
active
053892437
ABSTRACT:
A filter system includes a fluid-tight housing with filter elements supported in said housing and dividing the interior of the housing into first and second chambers. A pump pumps a liquid under pressure into said first chamber so that the liquid flows from the first chamber through the filter elements into said second chamber. An energy store is located in the housing which stores energy each time the pump is turned on and pressurizes the first chamber. When the pump is turned off and relieves the pressure in the first chamber, the potential energy stored in the energy store is applied as kinetic energy for moving the filter elements and increasing the pressure in the second chamber to cause liquid backflow through the filter elements which deans and rejuvenates the filter elements.
REFERENCES:
patent: 3834535 (1974-09-01), Portyrata
patent: 3969248 (1976-07-01), Whitmer
patent: 4578186 (1986-03-01), Morin
patent: 5057215 (1991-10-01), Hecking
patent: 5234605 (1993-08-01), Reipur et al.
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