US3243169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction vessels
Assignee: Distillers Co Yeast Ltd
•
Filing: 1962-09-18
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Granted: 1966-03-29
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Expires: 1982-09-18
Abstract
No abstract record available.
Inventors
- 👤 Caudle Peter Grainger
- 👤 Snell Ronald Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:10
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/2435; B01J19/0006; B01J19/0013; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00054; B01J2219/00056; B01J2219/00067; B01J2219/00069; B01J2219/00072; B01J2219/00159
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
A REACTION VESSEL COMPRISING: (A) A HOLLOW BODY PORTION; (B) MEANS FOR FILLING SAID HOLLOW BODY PORTION WITH LIQUID TO A PREDETERMINED LIQUID LEVEL; (C) MEANS FOR DIVIDING THE HOLLOW BODY PORTION INTO A LIQUID UPFLOW ZONE, AND A LIQUID DOWNFLOW ZONE HAVING A CROSS-SECTIONAL AREA IN THE RANGE OF 5 TO 25% OF THE TOTAL CROSS-SECTIONAL AREA OF THE VESSEL, SAID MEANS INTERSECTING THE LIQUID LEVEL IN THE VESSEL WHEN SAID VESSEL IS FILLED WITH LIQUID DURING USE AND HAVING A VERTICAL SLOT IN ITS UPPER END WHICH VERTICAL SLOT INTERSECTS THE LIQUID LEVEL AND HAS A RESISTANCE TO FLOW IN THE RANGE OF ONE TO FOUR TIMES THE SUM OF FLOW RESISTANCES FROM ALL OTHER CAUSES IN THE REACTION VESSEL; (D) MEANS FOR ADMITTING GAS NEAR THE BOTTOM OF THE UPFLOW ZONE; (E) MEANS FOR DISCHARGING THE GAS AT THE TOP OF THE REACTION VESSEL; AND (F) BAFFLE MEANS DISPOSED NEAR THE TOP OF THE DOWNFLOW ZONE SERVING TO DEFLECT LIQUID INTO A HORIZONTAL FLOW ZONE PRIOR TO ITS PASSASGE DOWN INTO THE DOWNFLOW ZONE.
Claim 2
Dependent Claim
177 words
A REACTION VESSEL COMPRISING: (A) A HOLLOW BODY PORTION; (B) MEANS FOR FILLING SAID HOLLOW BODY PORTION WITH LIQUID TO A PREDETERMINED LIQUID LEVEL; (C) MEANS FOR DIVIDING THE HOLLOW BODY PORTION INTO A LIQUID UPFLOW ZONE, AND A LIQUID DOWNFLOW ZONE HAVING A CROSS-SECTIONAL AREA IN THE RANGE OF 5 TO 25% OF THE TOTAL CROSS-SECTIONAL AREA OF THE VESSEL, SAID MEANS INTERSECTING THE LIQUID LEVEL IN THE VESSEL WHEN SAID VESSEL IS FILLED WITH LIQUID DURING USE AND HAVING A VERTICAL SLOT IN ITS UPPER END WHICH VERTICAL SLOT INTERSECTS THE LIQUID LEVEL AND HAS A RESISTANCE TO FLOW IN THE RANGE OF ONE TO FOUR TIMES THE SUM OF FLOW RESISTANCES FROM ALL OTHER CAUSES IN THE REACTION VESSEL; (D) MEANS FOR ADMITTING GAS NEAR THE BOTTOM OF THE UPFLOW ZONE; (E) MEANS FOR DISCHARGING THE GAS AT THE TOP OF THE REACTION VESSEL; AND (F) BAFFLE MEANS DISPOSED NEAR THE TOP OF THE DOWNFLOW ZONE SERVING TO DEFLECT LIQUID INTO A HORIZONTAL FLOW ZONE PRIOR TO ITS PASSASGE DOWN INTO THE DOWNFLOW ZONE.
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |