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US 2006/0124517 A1Published application
Compact personal water purification device
AssigneeMainstream Engineering Corporation
InventorRobert Scaringe
Life of this patent
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Abstract
A lightweight, portable, water purification device can be used to recover potable water from any water source. The manually operated device, requires no external power, is very lightweight, and removes salt and other impurities from source water while also disinfecting it. A symmetrical reverse osmosis (RO) membrane coupled with a pre-filter is used to remove salt and impurities from the raw water. Metal biocides are integratable to disinfect the permeate, improve wet storage and to significantly reduce biofouling within the RO membrane.
Claims26
A water purification device, comprising
- a pressure vessel containing a reversible reverse osmosis membrane assembly configured to provide a straightforward flow path and to which an intermittent flow of high pressure raw water is supplied;
- a handle mechanism for manually pressurizing raw water to be treated;
- and
- an optional permeate tube biocide operatively associated with the membrane assembly.
1 more element
Dependencies are inferred from the claim text.