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US3684457A Expired / Lapsed US ⏱️ 0.0 years remaining

Briner

Assignee: Leslie Salt Co
•
Filing: 1971-01-04
•
Granted: 1972-08-15
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Expires: 1991-01-04
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Abstract

Abstract LET AT THE UPPER END OF THE DRUM FOR WITHDRAWING THE SATURATED SOLUTION. THE OPENINGS ARE COVERED BY A FINE MESH SCREEN OF SUFFICIENT CLOSENESS TO PREVENT THE PASSAGE OF SOLID SALT PARTICLES WHILE ADMITTING THE LIQUID SATURATED SOLUTION. A VERTICALLY DISPOSED TANK HAS A BOTTOM, SIDE WALL OR WALLS, AN UPPER END, AND A SHELF OR SERIES OF BRACKETS AROUND ITS WALL, PREFERABLY AT TWO LEVELS, AN UPPER LEVEL FOR KILN-DRIED SALT AND LOWER LEVEL FOR VACUUMREFINED SALT. A RING OF TUBING RESTS ON ONE SHELF, DEPENDING ON THE KIND OF SALT BEING BRINED. THE TUBING HAS NOZZLES, PREFERABLY TOW ROWS, ONE DIRECTED DOWNWARDLY AND ONE DIRECTED INWARDLY AND DOWNWARDLY AT APPROXIMATELY THIRTY DEGREES TO HORIZONTAL. A CONSTANT WATER LEVEL AND HEAD IS MAINTAINED. COLLECTION DRUM AT THE BOTTOM OF THE TANK HAS A WALL THAT IS IMPERFORATE EXCEPT ADJACENT THE BOTTOM, WHERE OPENINGS ARE PROVIDED, AND THERE IS AN OUT-

Inventors

  • 👤 Peter J Pinto
  • 👤 Donald M King
  • 👤 Roy B Mccarthy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 17:14
CPC Classifications
B; B01; B01F; B01F21/00; B01F21/20; B01F21/22; B01F21/221; B01F35/00; B01F35/71; B01F35/717; B01F35/7179; C; C01; C01D; C01D3/00; C01D3/04; Y; Y10; Y10S; Y10S422/00; Y10S422/902

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) 1975-08-15 1976-02-14 1976-08-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-08-15 1980-02-14 1980-08-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-08-15 1984-02-14 1984-08-15 $7700.00 Window Closed / Lapsed

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