Liquid purification or separation – Flow – fluid pressure or material level – responsive – Check valve
Patent
1992-05-01
1993-12-07
Silverman, Stanley S.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Check valve
210266, 210414, 210415, 210276, 210282, 2104163, 210764, B01D 2408, B01D 3516
Patent
active
052680932
ABSTRACT:
A manually operable water purification system which includes (i) a first container having an open end and an outlet orifice, (ii) a filter operably positioned within the first container for filtering contaminated water placed within the first container as the contaminated water is forced toward the outlet orifice in the first container, (iii) a porous body of biocidally effective material operably positioned within the first container for disinfecting the filtered water as the filtered water is forced toward the outlet orifice in the first container, (iv) a plunger sealably receivable within the first container through the open end for forcing contaminated water retained within the first container through the filter and the porous body of biocidally effective material, and (v) a passageway through the plunger provided with a check valve for abating formation of a vacuum within the first container as the plunger is withdrawn from the first container.
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Hembree Richard D.
Sullivan Brian F.
Nessler Cynthia L.
Recovery Engineering, Inc.
Silverman Stanley S.
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