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Patent US3564819A successfully refreshed from Google Patents.
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US3564819A Expired / Lapsed US ⏱️ 0.0 years remaining

Membrane package construction

Assignee: General Electric Co
•
Filing: 1970-02-24
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Granted: 1971-02-23
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Expires: 1990-02-24
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Abstract

Abstract A PACKAGED MEMBRANE DEVICE IS DESCRIBED WHICH CONSISTS OF A PLURALITY OF SPACED MEMBRANES DISPOSED IN SUBSTANTIALLY PARALLEL SURFACE-TO-SURFACE ARRAY SO AS TO DEFINE BOTH A FIST GROUP OF FLOW VOLUMES AND A SECOND GROUP OF FLOW VOLUMES ALTERNATING BETWEEN THE FIRST GROUP. MEMBRANE-SPACING MEANS (E.G. A WOVEN SCREEN) IS LOCATED IN EACH OF THE FLOW VOLUMES. THE WALLS OF THE DEVICE EXTEND TRANSVERSELY TO THE MEMBRANES AND SERVE THE DUAL PURPOSES OF DEFINING THE PERIPHERY OF EACH OF THE FLOW VOLUMES AND OF BONDING TOGETHER ADJACENT MEMBRANES AND THE SPACING MEANS LOCATED THEREBETWEEN INTO AN INTEGRATED STRUCTURE. THE DISTRIBUTION OF DESPARATE FLOWS OF FLUID TO AND FROM EACH GROUP OF FLOW VOLUMES IS FACILITATED BY A PLURALITY OF DISCONTINUOUS CHANNELS HAVING GAS-TIGHT WALLS THAT EXTEND TRANSVERSELY BETWEEN ADJACENT MEMBRANES. EACH CHANNEL PLACES A PAIR OF ADJACENT FLOW VOLUMES OF THE SAME GROUP IN FLOW COMMUNICATION, WHILE AT THE SAME TIME THE GAS-TIGHT WALL OF EACH CHANNEL BONDS TOGETHER THE PORTION OF THE SPACING MEANS EMBEDDED THEREIN AND THE PORTIONS OF THE MEMBRANES LOCATED AT EACH END OF THE WALL.

Inventors

  • 👤 Charles K Neulander
  • 👤 William J Ward

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 13:27
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/38; B01D53/00; B01D53/22; B01D63/00; B01D63/08; B01D63/082; B01D63/0822; B01D2313/00; B01D2313/04; B01D2313/041; B01D2313/042

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1974-02-22 1974-08-24 1975-02-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-02-22 1978-08-24 1979-02-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-02-22 1982-08-24 1983-02-23 $7700.00 Window Closed / Lapsed

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