Patent US2645589A successfully refreshed from Google Patents.
US2645589A
Expired / Lapsed
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Method and apparatus for the continuous extraction of sugar from sugar beets
Assignee: Superior Sugar Extraction Inc
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Filing: 1950-07-11
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Granted: 1953-07-14
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Expires: 1970-07-11
Abstract
No abstract record available.
Inventors
- 👤 Langen Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:42
CPC Classifications
C; C13; C13B; C13B10/00; C13B10/08; C13B10/10; C13B10/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN AN APPARATUS FOR EXTRACTING SUGAR FROM SUGAR BEETS WHEREIN SILICES OF UNHEATED BEETS ARE INTRODUCED INTO THE APPARATUS AND ARE MOVED THROUGH THE APPARATUS COUNTERCURRENT TO THE FLOW OF AN EXTRACTION LIQUID IN WHICH SAID SLICES ARE IMMERSED, SAID LIQUID CONTAINING EXTRACTED SUBSTANCES BEING DISCHARGED FROM THE APPARATUS AT A POINT ADJACENT AN INLET FOR INTRODUCING THE UNHEATED SILCES, THE COMBINATION OF A ROTATABLE SHAFT SUPPORTING A CONVEYOR SCREW FOR MOVING THE SLICES OF BEETS THROUGH THE APPARATUS, A DOUBLE-WALLED SPIRAL ON SAID CONVEYOR SCREW HAVING OPENINGS IN THE LOWER WALL THEREOF, A PORTION OF SAID SHAFT BEING HOLLOW AND COMMUNICATING WITH THE SPACE BETWEEN THE DOUBLE-WALLED SPIRAL
Claim 2
Dependent Claim
109 words
IN AN APPARATUS FOR EXTRACTING SUGAR FROM SUGAR BEETS WHEREIN SILICES OF UNHEATED BEETS ARE INTRODUCED INTO THE APPARATUS AND ARE MOVED THROUGH THE APPARATUS COUNTERCURRENT TO THE FLOW OF AN EXTRACTION LIQUID IN WHICH SAID SLICES ARE IMMERSED, SAID LIQUID CONTAINING EXTRACTED SUBSTANCES BEING DISCHARGED FROM THE APPARATUS AT A POINT ADJACENT AN INLET FOR INTRODUCING THE UNHEATED SILCES, THE COMBINATION OF A ROTATABLE SHAFT SUPPORTING A CONVEYOR SCREW FOR MOVING THE SLICES OF BEETS THROUGH THE APPARATUS, A DOUBLE-WALLED SPIRAL ON SAID CONVEYOR SCREW HAVING OPENINGS IN THE LOWER WALL THEREOF, A PORTION OF SAID SHAFT BEING HOLLOW AND COMMUNICATING WITH THE SPACE BETWEEN THE DOUBLE-WALLED SPIRAL
References Cited (Backward Citations)
US746734A
Cited
US2496523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |