US3348972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuous conversion of starch
Assignee: Cerestar USA Inc
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Filing: 1964-02-19
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Granted: 1967-10-24
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Expires: 1984-02-19
Abstract
No abstract record available.
Inventors
- 👤 Gerwin G Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:27
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/12; C08B30/16; C13; C13K; C13K1/00; C13K1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
AN APPARATUS FOR A CONTINUOUS PROCESS OF CONVERTING ACID CATALYZED STARCH SLURRIES INTO DEXTROSE AND RELATED INTERMEDIATE PRODUCTS BY SUBJECTING SAID SLURRIES TO HEAT AND PRESSURE COMPRISING A CLOSED CYLINDRICAL VESSEL HAVING AN INLET PORT, AN OUTLET PORT AND A CENTRAL ROTATABLE SHAFT, AT LEAST ONE PADDLE BLADE ATTACHED TO SAID SHAFT, SAID PADDLE BLADE EXTENDING SUBSTANTIALLY THROUGHOUT THE VESSEL AND BEING POSITIONED CLOSELY ADJACENT THE INSIDE WALL OF THE VESSEL TO PROVIDE A SLIGHT CLEARANCE SPACE THEREBETWEEN, MEANS FOR ROTATING SAID PADDLE BLADE AT ANGULAR PERIPHERAL SPEEDS EQUIVALENT TO 10 TO 100 FEET PER MINUTE FOR A VESSEL ONE FOOT IN DIAMETER, AND MEANS FOR MAINTAINING THE LEVEL OF FLUID SLURRY IN SAID VESSEL AT A PREDETERMINED HEIGHT.
Claim 2
Independent Claim
119 words
AN APPARATUS FOR A CONTINUOUS PROCESS OF CONVERTING ACID CATALYZED STARCH SLURRIES INTO DEXTROSE AND RELATED INTERMEDIATE PRODUCTS BY SUBJECTING SAID SLURRIES TO HEAT AND PRESSURE COMPRISING A CLOSED CYLINDRICAL VESSEL HAVING AN INLET PORT, AN OUTLET PORT AND A CENTRAL ROTATABLE SHAFT, AT LEAST ONE PADDLE BLADE ATTACHED TO SAID SHAFT, SAID PADDLE BLADE EXTENDING SUBSTANTIALLY THROUGHOUT THE VESSEL AND BEING POSITIONED CLOSELY ADJACENT THE INSIDE WALL OF THE VESSEL TO PROVIDE A SLIGHT CLEARANCE SPACE THEREBETWEEN, MEANS FOR ROTATING SAID PADDLE BLADE AT ANGULAR PERIPHERAL SPEEDS EQUIVALENT TO 10 TO 100 FEET PER MINUTE FOR A VESSEL ONE FOOT IN DIAMETER, AND MEANS FOR MAINTAINING THE LEVEL OF FLUID SLURRY IN SAID VESSEL AT A PREDETERMINED HEIGHT.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |