Patent US3342729A successfully refreshed from Google Patents.
US3342729A
Expired / Lapsed
US
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Permeability separatory cell and apparatus and method of using the same
Assignee: Dow Chemical Co
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Filing: 1964-12-09
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Granted: 1967-09-19
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Expires: 1984-12-09
Abstract
No abstract record available.
Inventors
- 👤 Norman S Strand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:09
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/02; B01D63/04; B01D63/043; B01D53/00; B01D53/22; B01D63/026; B01D2317/00; B01D2317/02; B01D2317/04; Y; Y10; Y10S; Y10S159/00; Y10S159/27; Y10S435/00; Y10S435/814
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE METHOD FOR THE SEPARATION OF A COMPONENT FROM A FLUID HAVING AT LEAST ONE OTHER COMPONENT THEREIN COMPRISING: (A) FLOWING SAID FLUID ESSENTIALLY PERPENDICULAR TO THE PLANE OF A SEPARATORY MEMBRANE CONSISTING ESSENTIALLY OF A RELATIVELY FLAT, MESH MEMBRANE OF A PLURATLITY OF INDIVIDUAL, INTERLACED, CONTINUOUSLY HOLLOW, SELECTIVELY PERMEABLE, FINE, FILAMENTARY FIBERS HAVING TERMINAL OPENINGS, EACH OF SAID HOLLOW FIBERS HAVING A SUBSTANTIALLY HOLLOW BORE THERETHROUGH; (B) COLLECTING THAT PORTION OF COMPONENT OF SAID FLUID WHICH PERMEATES THE WALL OF SAID HOLLOW FIBERS AND CONDUCTING IT AWAY FROM SAID MESH MEMBRANE THROUGH THE INTERIOR OF SAID FIBERS IN A DIRECTION ESSENTIALLY PARALLEL TO THE PLANE OF SAID MESH MEMBRANE; AND (C) FLOWING THE NON-PERMEATED PORTION OF ASID FLUID AWAY FROM SAID MESH MEMBRANE.
Claim 2
Independent Claim
124 words
THE METHOD FOR THE SEPARATION OF A COMPONENT FROM A FLUID HAVING AT LEAST ONE OTHER COMPONENT THEREIN COMPRISING: (A) FLOWING SAID FLUID ESSENTIALLY PERPENDICULAR TO THE PLANE OF A SEPARATORY MEMBRANE CONSISTING ESSENTIALLY OF A RELATIVELY FLAT, MESH MEMBRANE OF A PLURATLITY OF INDIVIDUAL, INTERLACED, CONTINUOUSLY HOLLOW, SELECTIVELY PERMEABLE, FINE, FILAMENTARY FIBERS HAVING TERMINAL OPENINGS, EACH OF SAID HOLLOW FIBERS HAVING A SUBSTANTIALLY HOLLOW BORE THERETHROUGH; (B) COLLECTING THAT PORTION OF COMPONENT OF SAID FLUID WHICH PERMEATES THE WALL OF SAID HOLLOW FIBERS AND CONDUCTING IT AWAY FROM SAID MESH MEMBRANE THROUGH THE INTERIOR OF SAID FIBERS IN A DIRECTION ESSENTIALLY PARALLEL TO THE PLANE OF SAID MESH MEMBRANE; AND (C) FLOWING THE NON-PERMEATED PORTION OF ASID FLUID AWAY FROM SAID MESH MEMBRANE.
References Cited (Backward Citations)
US2982416A
Cited
US3228877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |