Liquid purification or separation – Flow – fluid pressure or material level – responsive – Maintaining stream pressure or flow
Patent
1990-02-23
1992-01-07
Spear, Frank
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Maintaining stream pressure or flow
210238, 210259, 21032184, B01D 6108
Patent
active
050788647
ABSTRACT:
A compact, high flow rate reverse osmosis water filtration system suitable for home use has four primary operating components--a carbon sediment pre-filter assembly, a reverse osmosis filter assembly, a granulated activated carbon post-filter assembly, and a flow controller. These four components are operatively interconnected by lengths of flexible tubing provided with finger operable quick disconnect fittings which permit each element to be rapidly disconnected from and reconnected to the balance of the system without the use of tools of any sort. Each of the three filter assemblies is of a throw-away construction comprising a filter material permanently sealed within a housing structure. Filter changeout is thus easily and quickly achieved by the homeowner simply by disconnecting the particular filter assembly and discarding it, housing and all, and then quickly reconnecting a replacement filter assembly in the system. A specially designed combination water supply/rinse water discharge fitting is utilized to operatively connect the system to a sink faucet, and a high purified drinking water production rate is achieved utilizing a rolled, double wrapped filter membrane structure in the reverse osmosis filter assembly.
REFERENCES:
patent: 3774763 (1973-11-01), Yall et al.
patent: 3776842 (1973-12-01), Grimme
patent: 4713175 (1987-12-01), Bray
Nature's Sunshine Products, Inc.
Spear Frank
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