US2663623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Counter-current extraction apparatus
Assignee: Anderson Co V D
•
Filing: 1950-10-04
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Granted: 1953-12-22
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Expires: 1970-10-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond T Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
C; C11; C11B; C11B1/00; C11B1/10; C11B1/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
APPARATUS FOR SOLVENT EXTRACTION OF THE OIL CONTENT OF OIL BEARING MATERIAL COMPRISING AN UPRIGHT CHAMBER, MEANS FOR INTRODUCING SOLVENT LIQUID NEAR ONE END OF SAID CHAMBER, AND FOR DISCHARGING IT NEAR THE OTHER END OF SAID CHAMBER, MEANS FOR INTRODUCING SAID MATERIAL TO SAID CHAMBER, SAID MATERIAL BEING OF SPECIFIC GRAVITY SUCH THAT IT MOVES THROUGH SAID SOLVENT LIQUID IN A DIRECTION COUNTER TO THE DIRECTION FLOW OF SAID SOLVENT LIQUID, A ROTATABLE SHAFT DISPOSED SUBSTANTIALLY VERTICALLY IN SAID CHAMBER AND BLADE MEANS HAVING A PLANAR PORTION, SAID BLADE MEANS BEING CARRIED BY AND EXTENDING RADIALLY FROM SAID SHAFT, AND BELOW THE SURFACE OF SAID SOLVENT LIQUID, THE PLANAR PORTION OF SAID BLADE MEANS BEING SO INCLINED TO THE HORIZONTAL AS TO
Claim 2
Dependent Claim
123 words
APPARATUS FOR SOLVENT EXTRACTION OF THE OIL CONTENT OF OIL BEARING MATERIAL COMPRISING AN UPRIGHT CHAMBER, MEANS FOR INTRODUCING SOLVENT LIQUID NEAR ONE END OF SAID CHAMBER, AND FOR DISCHARGING IT NEAR THE OTHER END OF SAID CHAMBER, MEANS FOR INTRODUCING SAID MATERIAL TO SAID CHAMBER, SAID MATERIAL BEING OF SPECIFIC GRAVITY SUCH THAT IT MOVES THROUGH SAID SOLVENT LIQUID IN A DIRECTION COUNTER TO THE DIRECTION FLOW OF SAID SOLVENT LIQUID, A ROTATABLE SHAFT DISPOSED SUBSTANTIALLY VERTICALLY IN SAID CHAMBER AND BLADE MEANS HAVING A PLANAR PORTION, SAID BLADE MEANS BEING CARRIED BY AND EXTENDING RADIALLY FROM SAID SHAFT, AND BELOW THE SURFACE OF SAID SOLVENT LIQUID, THE PLANAR PORTION OF SAID BLADE MEANS BEING SO INCLINED TO THE HORIZONTAL AS TO
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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) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |