US3137651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the treatment of solids by liquids
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1960-04-25
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Granted: 1964-06-16
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Lara Georges Cohen De
- 👤 Delachanal Michel
- 👤 Platzer Roger
- 👤 Hure Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:14
CPC Classifications
B; B01; B01J; B01J47/00; B01J47/10; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0223; B01D11/0242; B01D11/028; B01D15/00; B01D15/02; B01J8/00; B01J8/08; B01J8/12; B01J8/18; B01J8/20; B01D15/08; B01D15/10; B01D15/18; B01D15/1892
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
IN A METHOD OF TREATING A GRANULAR SOLID WITH A LIQUID WHEREIN THE LIQUID IS FED FROM AN OUTISDE SOURCE TO A COLUMN CONTAINING A BED OF THE GRANULAR SOLID, THE COLUMN CONSTITUTING A PORTION OF A CIRCULAR THROUGH WHICH A SUSPENSION OF THE SOLID IN THE LIQUID IS TRANSFERRED FROM THE BOTTOM REGION OF THE COLUMN TO THE TOP REGION OF THE COLUMN, THE IMPROVEMENT COMPRISING THE STEPS OF CONTINUOUSLY PASSING THE LIQUID THROUGH THE BED OF GRANULAR SOLID, PERIODICALLY MOVING THE BED TOWARD THE BOTTOM REGION OF THE COLUMN, PERIODICALLY REMOVING A FRACTION OF THE BED FROM THE BOTTOM REGION OF THE COLUMN INTO A SEALED BATH, INTRODUCING INTO THE TOP REGION OF THE COLUMN AN AMOUNT OF GRANULAR SOLID SUBSTANTIALLY EQUALLING THE REMOVED FRACTION ON THE BED AND MAINTAINING A BODY OF THE GRANULAR SOLID ON TOP OF SAID BED TO PREVENT EXPANSION OF SAID BED BY THE LIQUID PASSING THERETHROUGH.
Claim 2
Dependent Claim
154 words
IN A METHOD OF TREATING A GRANULAR SOLID WITH A LIQUID WHEREIN THE LIQUID IS FED FROM AN OUTISDE SOURCE TO A COLUMN CONTAINING A BED OF THE GRANULAR SOLID, THE COLUMN CONSTITUTING A PORTION OF A CIRCULAR THROUGH WHICH A SUSPENSION OF THE SOLID IN THE LIQUID IS TRANSFERRED FROM THE BOTTOM REGION OF THE COLUMN TO THE TOP REGION OF THE COLUMN, THE IMPROVEMENT COMPRISING THE STEPS OF CONTINUOUSLY PASSING THE LIQUID THROUGH THE BED OF GRANULAR SOLID, PERIODICALLY MOVING THE BED TOWARD THE BOTTOM REGION OF THE COLUMN, PERIODICALLY REMOVING A FRACTION OF THE BED FROM THE BOTTOM REGION OF THE COLUMN INTO A SEALED BATH, INTRODUCING INTO THE TOP REGION OF THE COLUMN AN AMOUNT OF GRANULAR SOLID SUBSTANTIALLY EQUALLING THE REMOVED FRACTION ON THE BED AND MAINTAINING A BODY OF THE GRANULAR SOLID ON TOP OF SAID BED TO PREVENT EXPANSION OF SAID BED BY THE LIQUID PASSING THERETHROUGH.
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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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |