Portable pump-type reverse osmosis apparatus

Details Portable pump-type reverse osmosis apparatus Portable pump-type reverse osmosis apparatus

1998-10-02

2000-09-19

Walker, W. L.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

210241, 2102571, 210232, 2103232, 210340, 2104163, 210258, B01D 2952

Patent

active

061206822

ABSTRACT:
A portable pump-type reverse osmosis apparatus includes a portable cart having a tub-like housing (12). A pair of elongated cylindrically-shaped R.O. units (36 and 37) sandwiched between a support means (25) and a cover means (45) are positioned within the housing. Both the support and the cover means include a contoured surface having recesses (29, 30, 46, and 47) that snugly engage a substantial portion of the R.O. units. A pump (55) enclosed by a spacer (65) is positioned above the cover means. A water container (75) is positioned above the pump to receive, hold, and dispense purified water from the R.O. units. To protect the unit from an inadequate water supply, a pressure switch (120) is included to permit operation of the R.O. units only when the incoming line pressure is within a preselected range.

REFERENCES:
patent: 3939074 (1976-02-01), Bray
patent: 4110219 (1978-08-01), Maples
patent: 4978284 (1990-12-01), Cook et al.
patent: 5645719 (1997-07-01), Ha et al.
patent: 5720874 (1998-02-01), Siegler
patent: 5855795 (1999-01-01), Chang
patent: 5928503 (1999-07-01), Shang-Chun
patent: 5958252 (1999-09-01), Shades

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