Patent US3332216A successfully refreshed from Google Patents.
US3332216A
Expired / Lapsed
US
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Fluid permeation apparatus
Assignee: Union Carbide Corp
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Filing: 1964-03-16
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Granted: 1967-07-25
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Expires: 1984-03-16
Abstract
No abstract record available.
Inventors
- 👤 Silvin A Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:52
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/10; B01D63/101; B01D53/00; B01D53/22; B01D63/08; B01D63/082; B01D2313/00; B01D2313/14; B01D2313/146
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
APPARATUS FOR THE SEPARATION OF FLUIDS BY SELECTIVE PERMEATION THROUGH NONPOROUS, SELECTIVELY PERMEABLE BARRIERS WHICH COMPRISES TWO NONPOROUS, SELECTIVELY PERMEABLE BARRIERS; A POROUS SUPPORT STRUCTURE POSITIONED BETWEEN THE BARRIERS AND CONSTRUCTED OF A PERMEATE-CONDUCTING LAYER CHARACTERIZED BY HAVING A FLOW CONDUCTANCE PARALLEL TO ITS SURFACE GREATER THAN THE COMBINED PERMEABILITIES OF THE BARRIERS, AND A FIBROUS CUSHIONING LAYER ON EACH SIDE OF SAID PERMEATE-CONDUCTING LAYER CHARACTERIZED BY HAVING A POROSITY NORMAL TO ITS SURFACE GREATER THAN THE PERMEABILITY OF EACH BARRIER, SAID POROUS SUPPORT STRUCTURE BEING ARRANGED IN RELATION TO SAID BARRIERS SUCH THAT EACH BARRIER IS CONTIGUOUSLY SUPPORTED BY ONE OF SAID CUSHIONING LAYERS; AND A PERMEATE-COLLECTING MANIFOLD IN FLUID COMMUNICATION WITH SAID PERMEATE-CONDUCTING LAYER.
Claim 2
Dependent Claim
116 words
APPARATUS FOR THE SEPARATION OF FLUIDS BY SELECTIVE PERMEATION THROUGH NONPOROUS, SELECTIVELY PERMEABLE BARRIERS WHICH COMPRISES TWO NONPOROUS, SELECTIVELY PERMEABLE BARRIERS; A POROUS SUPPORT STRUCTURE POSITIONED BETWEEN THE BARRIERS AND CONSTRUCTED OF A PERMEATE-CONDUCTING LAYER CHARACTERIZED BY HAVING A FLOW CONDUCTANCE PARALLEL TO ITS SURFACE GREATER THAN THE COMBINED PERMEABILITIES OF THE BARRIERS, AND A FIBROUS CUSHIONING LAYER ON EACH SIDE OF SAID PERMEATE-CONDUCTING LAYER CHARACTERIZED BY HAVING A POROSITY NORMAL TO ITS SURFACE GREATER THAN THE PERMEABILITY OF EACH BARRIER, SAID POROUS SUPPORT STRUCTURE BEING ARRANGED IN RELATION TO SAID BARRIERS SUCH THAT EACH BARRIER IS CONTIGUOUSLY SUPPORTED BY ONE OF SAID CUSHIONING LAYERS; AND A PERMEATE-COLLECTING MANIFOLD IN FLUID COMMUNICATION WITH SAID PERMEATE-CONDUCTING LAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |