Patent US3195984A successfully refreshed from Google Patents.
US3195984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Column dissolver
Assignee: Individual
•
Filing: 1960-05-05
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Granted: 1965-07-20
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Expires: 1980-05-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Sands
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:59
CPC Classifications
G; G21; G21C; G21C19/00; G21C19/42; G21C19/44; G21C19/46; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0223; B01D11/028; B01D11/0284; B01F; B01F21/00; B01F21/30; G21C19/40; B01D2011/005; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y02W; Y02W30/00; Y02W30/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
312 words
A SYSTEM FOR DISSOLVEING PARTICULATE SOLIDS COMPRISING A PLURALITY OF SERIALLY-CONNECTED VERTICALLY-DISPOSED TUBULAR COLUMNS INCLUDING A FIRST COLUMN, A SECOND COLUMN AND A FINAL COLUMN, EACH OF SAID COLUMNS HAVING AN UPPER PORTION, AN INTERMEDIATE PORTION, AND A LOWER PORTION; ELONGATED HEATING MEANS VERTICALLY DISPOSED IN THE LOWER PORTION OF EACH COLUMN AND ADAPTED TO FORM AN ANNULUS WITH SAID COLUMN; VAPOR OUTLET MEANS IN THE UPPER PORTION OF EACH OF SAID COLUMNS; VAPOR CONDENSING MEANS COMMUNICATING WITH SAID VAPOR OUTLET MEANS; MEANS FOR RETURNING CONDENSED VAPOR TO SAID COLUMNS; MEANS FOR CONTROLLING THE AMOUNT OF CONDENSATE RETURNED TO SAID COLUMNS; MEANS FOR MAINTAINING THE UPPER PORTION OF SAID COLUMNS UNDER SUBATMOSPHERIC PRESSURE; FLUID INLET MEANS IN THE LOWER PORTION OF EACH OF SAID COLUMNS; FLUID OUTLET MEANS IN THE UPPER PORTION OF EACH OF SAID COLUMNS SUBSEQUENT TO SAID FIRST COLUMN, SAID FLUID OUTLET MEANS BEING STEPPED DOWN IN CASCADE FASHION IN PROCEEDING FROM THE SECOND COLUMN TO THE FINAL COLUMN; FLUID CONDUIT MEANS PROVIDING A PASSAGEWAY FROM EACH OF SAID FLUID OUTLET MEANS IN THE COLUMNS SUBSEQUENT OT THE FIRST COLUMN TO THE FLUID INLET MEANS OF THE NEXT SUCCEEDING COLUMN; FLUID OUTLET MEANS IN THE INTERMEDIATE PORTION OF SAID FIRST AND SECOND COLUMNS; FIRST FLUID CONDUIT MEANS INTERCONNECTING SAID FLUID OUTLET MEANS IN THE INTERMEDIATE PORTION OF SAID FIRST AND SECOND COLUMNS, SAID FIRST FLUID CONDUIT MEANS BEING PROVIDED WITH FLUID OUTLET MEANS IN THE MID-PORTION THEREOF; SECOND FLUID CONDUIT MEANS INTERCONNECTING THE FLUID INLET MEANS IN THE LOWER PORTION OF SAID FIRST AND SECOND COLUMNS, SAID SECOND FLUID CONDUIT MEANS BEING PROVIDED WITH FLUID INLET MEANS IN THE MID-PORTION THEREOF; THIRD FLUID CONDUIT MEANS INTERCONNECTING THE FLUID OUTLET AND FLUID INLET MEANS IN SAID FIRST AND SECOND CONDUIT MEANS; MEANS FOR INTRODUCING LIQUIDS AND PARTICULAR SOLIDS IN THE FIRST COLUMN; AND LIQUID REMOVING MEANS IN THE FINAL COLUMN.
Claim 2
Independent Claim
312 words
A SYSTEM FOR DISSOLVEING PARTICULATE SOLIDS COMPRISING A PLURALITY OF SERIALLY-CONNECTED VERTICALLY-DISPOSED TUBULAR COLUMNS INCLUDING A FIRST COLUMN, A SECOND COLUMN AND A FINAL COLUMN, EACH OF SAID COLUMNS HAVING AN UPPER PORTION, AN INTERMEDIATE PORTION, AND A LOWER PORTION; ELONGATED HEATING MEANS VERTICALLY DISPOSED IN THE LOWER PORTION OF EACH COLUMN AND ADAPTED TO FORM AN ANNULUS WITH SAID COLUMN; VAPOR OUTLET MEANS IN THE UPPER PORTION OF EACH OF SAID COLUMNS; VAPOR CONDENSING MEANS COMMUNICATING WITH SAID VAPOR OUTLET MEANS; MEANS FOR RETURNING CONDENSED VAPOR TO SAID COLUMNS; MEANS FOR CONTROLLING THE AMOUNT OF CONDENSATE RETURNED TO SAID COLUMNS; MEANS FOR MAINTAINING THE UPPER PORTION OF SAID COLUMNS UNDER SUBATMOSPHERIC PRESSURE; FLUID INLET MEANS IN THE LOWER PORTION OF EACH OF SAID COLUMNS; FLUID OUTLET MEANS IN THE UPPER PORTION OF EACH OF SAID COLUMNS SUBSEQUENT TO SAID FIRST COLUMN, SAID FLUID OUTLET MEANS BEING STEPPED DOWN IN CASCADE FASHION IN PROCEEDING FROM THE SECOND COLUMN TO THE FINAL COLUMN; FLUID CONDUIT MEANS PROVIDING A PASSAGEWAY FROM EACH OF SAID FLUID OUTLET MEANS IN THE COLUMNS SUBSEQUENT OT THE FIRST COLUMN TO THE FLUID INLET MEANS OF THE NEXT SUCCEEDING COLUMN; FLUID OUTLET MEANS IN THE INTERMEDIATE PORTION OF SAID FIRST AND SECOND COLUMNS; FIRST FLUID CONDUIT MEANS INTERCONNECTING SAID FLUID OUTLET MEANS IN THE INTERMEDIATE PORTION OF SAID FIRST AND SECOND COLUMNS, SAID FIRST FLUID CONDUIT MEANS BEING PROVIDED WITH FLUID OUTLET MEANS IN THE MID-PORTION THEREOF; SECOND FLUID CONDUIT MEANS INTERCONNECTING THE FLUID INLET MEANS IN THE LOWER PORTION OF SAID FIRST AND SECOND COLUMNS, SAID SECOND FLUID CONDUIT MEANS BEING PROVIDED WITH FLUID INLET MEANS IN THE MID-PORTION THEREOF; THIRD FLUID CONDUIT MEANS INTERCONNECTING THE FLUID OUTLET AND FLUID INLET MEANS IN SAID FIRST AND SECOND CONDUIT MEANS; MEANS FOR INTRODUCING LIQUIDS AND PARTICULAR SOLIDS IN THE FIRST COLUMN; AND LIQUID REMOVING MEANS IN THE FINAL COLUMN.
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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |