US3211533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystallizer vessel
Assignee: Werkspoor NV
•
Filing: 1960-05-27
•
Granted: 1965-10-12
•
Expires: 1980-05-27
Abstract
No abstract record available.
Inventors
- 👤 Johan F Witte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:50
CPC Classifications
C; C13; C13B; C13B30/00; C13B30/02; B; B01; B01D; B01D21/00; B01D21/009; B01D21/24; B01D21/2405; B01D21/2427; B01D21/245; B01D9/00; B01D9/0004; B01D9/0013; B01D9/0018; B01D9/0031; B01J; B01J8/00; B01J8/18; B01J8/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
APPARATUS FOR CRYSTALLIZING AND REACTING COMPRISING A VESSEL HAVING A DOWNWARDLY CONVERGING CONICAL BOTTOM AND IN WHICH SOLID PARTICLE ARE MAINTAINED IN SUSPENSION IN A FLUID, AND INLET TUBE FOR INTRODUCING FLUID INTO THE VESSEL EXTENDING VERTICALLY INTO THE CONTAINER AND HAVING AN OPEN LOWER END AT A LEVEL COSE TO THE LOWEST PART OF SAID BOTTOM, SAID TUBE BEING CONICALLY WIDENED IN DOWNWARD DIRECTION AT ITS LOWER END AND HAVING A SUBSTANTIALLY HORIZONTAL FLANGE AT THE END OF SAID WIDENED PLART, AN OUTLET FOR LARGE SOLID PARTICLES IN THE LOWEST PART OF THE VESSEL BOTTOM POSITIONED BELOW SAID OPEN LOWER END OF THE VERTICAL TUBE, A SETTLING TANK CONNECTIED TO SAID OUTLET, SAID FLANGE AND SAID BOTTOM FORMING AN ANNULAR PASSAGE OF SUBSTANTIAL LENGTH EXTENDING RADIALLY OF THE VESSEL BOTTOM AND NARROWING IN HEIGHT TOWARD THE OUTER PERIPHERY OF THE BOTTOM, AND SAID VESSEL HAVING ANOTHER OUTLET FOR SMALLER SOLID PARTICLES IN SAID CONICAL BOTTOM AT A LEVEL ABOVE SAID PASSAGE AND THE LOWER END OF THE VERTICAL INLET TUBE.
Claim 2
Dependent Claim
171 words
APPARATUS FOR CRYSTALLIZING AND REACTING COMPRISING A VESSEL HAVING A DOWNWARDLY CONVERGING CONICAL BOTTOM AND IN WHICH SOLID PARTICLE ARE MAINTAINED IN SUSPENSION IN A FLUID, AND INLET TUBE FOR INTRODUCING FLUID INTO THE VESSEL EXTENDING VERTICALLY INTO THE CONTAINER AND HAVING AN OPEN LOWER END AT A LEVEL COSE TO THE LOWEST PART OF SAID BOTTOM, SAID TUBE BEING CONICALLY WIDENED IN DOWNWARD DIRECTION AT ITS LOWER END AND HAVING A SUBSTANTIALLY HORIZONTAL FLANGE AT THE END OF SAID WIDENED PLART, AN OUTLET FOR LARGE SOLID PARTICLES IN THE LOWEST PART OF THE VESSEL BOTTOM POSITIONED BELOW SAID OPEN LOWER END OF THE VERTICAL TUBE, A SETTLING TANK CONNECTIED TO SAID OUTLET, SAID FLANGE AND SAID BOTTOM FORMING AN ANNULAR PASSAGE OF SUBSTANTIAL LENGTH EXTENDING RADIALLY OF THE VESSEL BOTTOM AND NARROWING IN HEIGHT TOWARD THE OUTER PERIPHERY OF THE BOTTOM, AND SAID VESSEL HAVING ANOTHER OUTLET FOR SMALLER SOLID PARTICLES IN SAID CONICAL BOTTOM AT A LEVEL ABOVE SAID PASSAGE AND THE LOWER END OF THE VERTICAL INLET TUBE.
References Cited (Backward Citations)
US2025059A
Cited
US2164111A
Cited
US2567968A
Cited
US2623814A
Cited
US2801907A
Cited
US2827366A
Cited
US2921969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |