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US3801474A Expired / Lapsed US ⏱️ 0.0 years remaining

Process and apparatus for solar distillation utilizing cellular ceramic nodules to improve the evaporation rate

Assignee: Pittsburgh Corning LLC
•
Filing: 1971-09-10
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Granted: 1974-04-02
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Expires: 1991-09-10
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Abstract

Abstract THIS DISCLOSURE RELATES TO A PROCESS FOR RECOVERING FRESH WATER FROM BRINE OR SALT WATER BY SOLAR DISTILLATION. AN INVENTORY OF SUBSTANTIALLY SPHERICAL CELLULAR CERAMIC NODULES HAVING AN OUTER TEXTURED SURFACE IS POSITIONED ON THE UPPER SURFACE OF A BODY OF SEA WATER WITHIN A CONTAINER. THE NODULES FLOAT ON THE UPPER SURFACE OF THE SALT WATER IN A PARTIALLY SUBMERGED CONDITION WITH THE UPPER EXPOSED SURFACES OF THE NODULES ABOVE THE SURFACE OF THE WATER. THE UPPER SURFACES OF THE NUDULES ARE WETTED BY THE WATER AND A RELATIVELY THIN FILM IS FORMED THEREON. THE FILM ON THE UPPER SURFACE OF THE NODULES IS SUBJECTED TO ELEVATED TEMPERATURES BY SOLAR RADIATION AND THE WATR IN THE THIN FILM EVAPORATES AND IS CONTINUALLY REPLACED AS A THIN FILM FROM THE BODY OF WATER. THE WATER VAPOR CONDENSES ON A COVERING SURFACE OVER THE CONTAINER AND IS SUITABLY COLLECTED.

Inventors

  • 👤 N Castellucci
  • 👤 N Krouskop

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 03:07
CPC Classifications
B; B01; B01D; B01D5/00; B01D5/0057; B01D5/006; B01D5/0066; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/14; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/208; Y02A20/212; Y10; Y10S; Y10S159/00; Y10S159/902; Y10S159/903; Y10S203/00; Y10S203/01; Y10S203/11; Y10S261/00; Y10S261/72

Claims Analysis

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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) 1977-04-01 1977-10-01 1978-04-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-04-01 1981-10-01 1982-04-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-04-01 1985-10-01 1986-04-02 $7700.00 Window Closed / Lapsed

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