B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/14.2
B01D 61/08 (2006.01) B01D 63/10 (2006.01) B01D 65/00 (2006.01) C02F 1/44 (2006.01)
Patent
CA 1324766
- 0 - REVERSE OSMOSIS APPARATUS Abstract of the Disclosure A reverse osmosis member cartridge unit 10 for a drinking-water purification system is disclosed. The reverse osmosis membrane cartridge unit 10 includes a reverse osmosis membrane permeator 11 spirally wound on a central winding tube 12 and surrounded by an impermeable barrier layer 15 which is, in turn, surrounded by a spirally wound prefilter 16. A postfilter 30 is placed centrally within the winding tube 12. The cartridge unit 10 is designed for functional installation in a housing tube 44 fastened and sealed to a valve plate 45 at one end and closed by a removable end cap 46 at the other or outboard end. Feed water enters the cartridge unit through an inlet port 48 in the valve plate 45 at an outer radius to pass lengthwise in prefilter 16. Prefiltered water returns lengthwise through the reverse osmosis permeator 11 to a waste-water outlet port 43 in the valve plate 45 at an intermediate radius. Product water which has permeated through the membrane flows inwardly through holes 92 in the winding tube 12 and into a clearance space 40 surrounding a central postfilter 30. After traveling to the outboard end in the clearance space, the permeate flows through the length of the postfilter 30 to e purified-water outlet port at an inner radius in the valve plate 45. The reverse osmosis membrane cartridge 10 is axially removable from the housing tube 44 for ease of replacement of the cartridge unit 10 without disturbing any piping connections.
568634
Brown Barry M.
Edwards Evan A.
Holzer Joseph C.
Pavel Augustine
Tone Frederick
Brown Barry M.
Eastman Kodak Company
Edwards Evan A.
Gowling Lafleur Henderson Llp
Holzer Joseph C.
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