Patent US2601674A successfully refreshed from Google Patents.
US2601674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid contact apparatus with rotating disks
Assignee: Shell Development Co
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Filing: 1949-06-13
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Granted: 1952-06-24
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Expires: 1969-06-13
Abstract
No abstract record available.
Inventors
- 👤 Gerrit H Reman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:34
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D11/0426; B01D11/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A ROTATING DISC CONTACTOR COMPRISING A TUBULAR SHELL; A PLURALITY OF ANNULAR, STATIONARY BAFFLES FIXED WITHIN SAID SHELL EXTENDING FROM THE SHELL WALL TO A CENTRAL OPENING AND DIVIDING SAID SHELL INTO A SERIES OF COMPARTMENTS; A ROTOR SHAFT EXSAID OPENINGS; A PLURALITY OF DISC-LIKE ROTOR BAFFLES FIXED TO SAID SHAFT, EACH ROTOR BAFFLE BEING WHOLLY WITHIN ONE OF SAID COMPARTMENTS AND DISPLACED A SUBSTANTIAL DISTANCE AXIALLY FROM THE STATIONARY BAFFLES THEREOF AND EXTENDING OUTWARDLY TOWARD THE WALL OF SAID SHELL, EACH OF SAID ROTOR BAFFLES BEING SMALLER THAN THE OPENINGS IN THE STATIONARY BAFFLES TOWARDS ONE END OF THE SHELL FROM THE RESPECTIVE ROTOR BAFFLE, WHEREBY SAID SHAFT AND ROTOR BAFFLES CAN BE MOVED THROUGH SAID OPENINGS TOWARD THE SAID END OF THE SHELL; MEANS FOR INTRODUCING AND DISCHARGING FLUID AT AXIALLY DISPLACED POINTS IN SAID SHELL; AND MEANS FOR ROTATING SAID ROTOR SHAFT AND ROTOR BAFFLES.
Claim 2
Dependent Claim
148 words
A ROTATING DISC CONTACTOR COMPRISING A TUBULAR SHELL; A PLURALITY OF ANNULAR, STATIONARY BAFFLES FIXED WITHIN SAID SHELL EXTENDING FROM THE SHELL WALL TO A CENTRAL OPENING AND DIVIDING SAID SHELL INTO A SERIES OF COMPARTMENTS; A ROTOR SHAFT EXSAID OPENINGS; A PLURALITY OF DISC-LIKE ROTOR BAFFLES FIXED TO SAID SHAFT, EACH ROTOR BAFFLE BEING WHOLLY WITHIN ONE OF SAID COMPARTMENTS AND DISPLACED A SUBSTANTIAL DISTANCE AXIALLY FROM THE STATIONARY BAFFLES THEREOF AND EXTENDING OUTWARDLY TOWARD THE WALL OF SAID SHELL, EACH OF SAID ROTOR BAFFLES BEING SMALLER THAN THE OPENINGS IN THE STATIONARY BAFFLES TOWARDS ONE END OF THE SHELL FROM THE RESPECTIVE ROTOR BAFFLE, WHEREBY SAID SHAFT AND ROTOR BAFFLES CAN BE MOVED THROUGH SAID OPENINGS TOWARD THE SAID END OF THE SHELL; MEANS FOR INTRODUCING AND DISCHARGING FLUID AT AXIALLY DISPLACED POINTS IN SAID SHELL; AND MEANS FOR ROTATING SAID ROTOR SHAFT AND ROTOR BAFFLES.
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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) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |