US3883434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverse osmosis apparatus
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1973-10-05
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Granted: 1975-05-13
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Expires: 1993-10-05
Abstract
Abstract Reverse osmosis apparatus comprises a membrane assembly mounting within a pressure shell. The assembly is mounted for rotation within the shell. Rotation during operation provides a higher recovery ratio of product liquid. Fluid turbine drive can be powered by the feed or reject liquid.
Inventors
- 👤 Ronald Gayler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:48
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/16; B01D61/00; B01D61/02; B01D61/08; B01D61/081; B01D63/06; B01D63/062; B01D63/065; B01D2315/00; B01D2315/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
156 words
Reverse osmosis apparatus comprising a stationary pressure shell, at least one bundle of rods disposed lengthwise within the shell so as to be rotatable within the shell about an axis, each rod having at least one longitudinally extending groove therein, a permeable substrate in the form of a sleeve covering the rod and a reverse osmosis membrane deposited on the substrate, manifold means mounted on one common end of a plurality of said rods, a hollow shaft attached to the manifold means, and extending along said axis, turbine means arranged to be energised by the pressure head of the feed solution for rotating the shaft and hence the bundle of rods within the said shell, means comprising a conduit for supplying a feed solution to the pressure shell so as to obtain a product liquid within said groove and said manifold by reverse osmosis, and means for collecting said product liquid by way of said shaft.
Claim 2
Dependent Claim
156 words
Reverse osmosis apparatus comprising a stationary pressure shell, at least one bundle of rods disposed lengthwise within the shell so as to be rotatable within the shell about an axis, each rod having at least one longitudinally extending groove therein, a permeable substrate in the form of a sleeve covering the rod and a reverse osmosis membrane deposited on the substrate, manifold means mounted on one common end of a plurality of said rods, a hollow shaft attached to the manifold means, and extending along said axis, turbine means arranged to be energised by the pressure head of the feed solution for rotating the shaft and hence the bundle of rods within the said shell, means comprising a conduit for supplying a feed solution to the pressure shell so as to obtain a product liquid within said groove and said manifold by reverse osmosis, and means for collecting said product liquid by way of said shaft.
Claim 3
Dependent Claim
23 words
Apparatus as claimed in claim 1, wherein the turbine means is disposed in the supply conduit for feed solution to the pressure shell.
Claim 4
Dependent Claim
31 words
Apparatus as claimed in claim 1, wherein said apparatus includes an outlet conduit for rejected liquid from the pressure shell and wherein the turbine means is disposed in the outlet conduit.
Claim 5
Dependent Claim
16 words
Apparatus as claimed in claim 1 wherein the turbine means is disposed within the pressure shell.
Claim 6
Dependent Claim
26 words
Apparatus as claimed in claim 1 comprising a plurality of bundles of rods disposed about said axis, with the said bundles attached to a single manifold.
Claim 7
Dependent Claim
20 words
Apparatus as claimed in claim 1 wherein said rods are supported by a central support spindle disposed along said axis.
Claim 8
Dependent Claim
14 words
Apparatus as claimed in claim 6 wherein the pressure vessel includes spindle bearing means.
References Cited (Backward Citations)
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US3355382A
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US3400074A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |