US3608610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for evaporative separation of liquids through microporous panels
Assignee: Veolia WTS Systems USA Inc
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Filing: 1969-10-01
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Granted: 1971-09-28
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Expires: 1989-10-01
Abstract
Abstract A membrane permeation apparatus for removing one or more components from a fluid mixture comprising a plurality of two compartment units, each compartment defined by semipermeable membranes, wherein the first compartment is the fluid mixture feed compartment and the second a vapor compartment which is maintained under a partial vacuum, the latter having heating means therein for vaporizing a component of the fluid mixture at the adjacent semipermeable membrane surfaces defining said vapor compartment.
Inventors
- 👤 John L Greatorex
- 👤 Dirk M De Winter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:18
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/08; B01D63/082; B01D63/0822; B01D61/00; B01D61/36; B01D61/362; B01D2313/00; B01D2313/22; Y; Y10; Y10S; Y10S159/00; Y10S159/27
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
31 words
The separation apparatus of claim 1 wherein a plurality of interconnecting units is disposed in juxtaposed position so that each first compartment is contiguous to two second compartments and vice versa.
Claim 2
Dependent Claim
77 words
The apparatus of claim 1 wherein said second compartments are thicker than the said first compartments, said thicker compartments being provided with a plurality of tubes or ports associated with the side edge of the said spacer-frame members forming said second compartments, said tubes or ports being in communication with vapor and liquid flow conduits of said apparatus whereby said vapor and liquid streams are introduced and withdrawn from said units directly through said tubes or ports.
Claim 3
Dependent Claim
148 words
A separation apparatus for the removal of one or more components from a fluid mixture containing the same comprising; at least one unit having two adjacent compartments separated by a semipermeable membrane, the first compartment having inlet and outlet means for passing a fluid feed mixture therethrough, the second compartment having means comprising a spacer-frame member associated therewith permitting evacuating the space therein and also containing therein both membrane-support means and means for electrically heating in situ said support means, said support means comprising a laminate of metal sheets having differing porosities, the most finely porous sheet being placed in contact with the membrane being supported, said heating means supplying from said second compartment the latent heat required for vaporizing said one or more components of the fluid mixture at the surface of said separating membrane and means for removing said vaporized component from the said second compartment.
Claim 4
Dependent Claim
20 words
The apparatus of claim 4 wherein at least one of said metal porous sheets functions as an electrical heating means.
Claim 5
Dependent Claim
20 words
The apparatus of claim 5 wherein the porous sheet in contact with the membrane functions as said electrical heating means.
References Cited (Backward Citations)
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Cited
US3219573A
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US3332746A
Cited
US3385769A
Cited
US3477917A
Cited
US3398091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |