US2637666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction tower for comminuted material of vegetable or plant origin, particularly sugar beets
Assignee: Individual
•
Filing: 1950-01-31
•
Granted: 1953-05-05
•
Expires: 1970-01-31
Abstract
No abstract record available.
Inventors
- 👤 Langen Eugen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:13
CPC Classifications
C; C13; C13B; C13B10/00; C13B10/08; C13B10/10; C13B10/102; B; B01; B01D; B01D11/00; B01D11/02; B01D11/0215; B01D11/0223; B01D11/0226
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN AN EXTRACTION TOWER FOR TREATING COMMINUTED VEGETABLE MATERIAL, SAID TOWER HAVING AN UPPER INLET PASSAGE FOR WATER, A LOWER OUTLET PASSAGE FOR EXTRACTED JUICE, AND AN ELEVATING SPIRAL IN THE TOWER OF A DIAMETER EQUAL TO THAT OF THE INTERIOR OF THE TOWER, THE COMBINATION OF A TUBULAR SHAFT SERVING AS THE SHAFT OF THE ELEVATING SPIRAL, A SPIRAL IN SAID TUBULAR SHAFT FOR FEEDING SAID MATERIAL DOWNWARD, REVERSING MEANS FOR DIRECTING THE CURRENT OF MATERIAL FROM THE BOTTOM OF SAID TUBULAR SHAFT TO THE ELEVATING SPIRAL, SAID ELEVATING SPIRAL BEING INTERRUPED AT INTERVALS, FIXED ABUTMENTS EXTENDING INTO THE INTERRUPTIONS FOR RETARDING SAID MATERIAL, AND MEANS FOR REMOVING EXHAUSTED MATERIAL.
Claim 2
Dependent Claim
111 words
IN AN EXTRACTION TOWER FOR TREATING COMMINUTED VEGETABLE MATERIAL, SAID TOWER HAVING AN UPPER INLET PASSAGE FOR WATER, A LOWER OUTLET PASSAGE FOR EXTRACTED JUICE, AND AN ELEVATING SPIRAL IN THE TOWER OF A DIAMETER EQUAL TO THAT OF THE INTERIOR OF THE TOWER, THE COMBINATION OF A TUBULAR SHAFT SERVING AS THE SHAFT OF THE ELEVATING SPIRAL, A SPIRAL IN SAID TUBULAR SHAFT FOR FEEDING SAID MATERIAL DOWNWARD, REVERSING MEANS FOR DIRECTING THE CURRENT OF MATERIAL FROM THE BOTTOM OF SAID TUBULAR SHAFT TO THE ELEVATING SPIRAL, SAID ELEVATING SPIRAL BEING INTERRUPED AT INTERVALS, FIXED ABUTMENTS EXTENDING INTO THE INTERRUPTIONS FOR RETARDING SAID MATERIAL, AND MEANS FOR REMOVING EXHAUSTED MATERIAL.
References Cited (Backward Citations)
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |