US2653114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction tower
Assignee: Pfeifer and Langen GmbH and Co KG
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Filing: 1951-01-03
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Granted: 1953-09-22
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Expires: 1971-01-03
Abstract
No abstract record available.
Inventors
- 👤 Langen Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:48
CPC Classifications
C; C13; C13B; C13B10/00; C13B10/08; C13B10/10; C13B10/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
IN AN INSTALLATION FOR THE EXTRACTION OF BEET CHIPS A VERTICAL EXTRACTION TOWER, A TUBE ATTACHED TO ITS UPPER CLOSED END FOR THE SUPPLY OF THE EXTRACTION LIQUID, A VERTICAL AXIS SCREW CONVEYOR IN SAID TOWER TO LIFT THE CHIPS CHARGED INTO THE LOWER PORTION OF SAID TOWER IN AN UPWARD DIRECTION AND COUNTERCURRENTLY TO THE DOWNFLOWING EXTRACTION LIQUID, A SLIGHTLY UPWARDLY INCLINED TUBULAR CASING LATERALLY ATTACHED TO A PORTION OF SAID TOWER LOCATED ABOVE THE ENTRANCE LEVEL OF THE EXTRAC TION LIQUID, A SCREW CONVEYOR IN SAID CASING EXTENDING THROUGH THE SAME AND THROUGH SAID TOWER TOWARDS THE OPPOSITE WALL THEREOF FOR THE
Claim 2
Dependent Claim
104 words
IN AN INSTALLATION FOR THE EXTRACTION OF BEET CHIPS A VERTICAL EXTRACTION TOWER, A TUBE ATTACHED TO ITS UPPER CLOSED END FOR THE SUPPLY OF THE EXTRACTION LIQUID, A VERTICAL AXIS SCREW CONVEYOR IN SAID TOWER TO LIFT THE CHIPS CHARGED INTO THE LOWER PORTION OF SAID TOWER IN AN UPWARD DIRECTION AND COUNTERCURRENTLY TO THE DOWNFLOWING EXTRACTION LIQUID, A SLIGHTLY UPWARDLY INCLINED TUBULAR CASING LATERALLY ATTACHED TO A PORTION OF SAID TOWER LOCATED ABOVE THE ENTRANCE LEVEL OF THE EXTRAC TION LIQUID, A SCREW CONVEYOR IN SAID CASING EXTENDING THROUGH THE SAME AND THROUGH SAID TOWER TOWARDS THE OPPOSITE WALL THEREOF FOR THE
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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |