US2768071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid-liquid contacting apparatus
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1953-05-19
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Granted: 1956-10-23
•
Expires: 1973-05-19
Abstract
No abstract record available.
Inventors
- 👤 Oldrich S Pokorny
- 👤 Michael H Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:42
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D11/0426; B01D11/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A LIQUID-LIQUID CONTACTING APPARATUS COMPRISING A VESSEL, A SERIES OF VERTICALLY SPACED TRANSVERSE PLATES WITHIN SAID VESSEL, EACH OF SAID PLATES HAVING A RELATIVELY HORZONTAL PORTION EXTENDING OVER A LARGER PORTION OF THE TRANSVERSE AREA OF SAID VESSEL, EACH OF SAID PLATES BEING PROVIDED WITH AN UPTURNED OVERFLOW WEIR AT ONE MARGIN AND A DOWNTURNED UNDERFLOW WEIR AT ANOTHER MARGIN, THE UPTURNED WEIRS OF SUCCESSIVE PLATES BEING SUBSTANTIALLY LATERALLY OPPOSITE ONE ANOTHER OF DEFLECTOR PLATE EXTENDING OVER EACH OVERFLOW WEIR FROM THE WALL OF SAID VESSEL AND SLOPING DOWNWARDLY TO A POINT INWARD OF AND BELOW THE LEVEL OF SAID OVERFLOW WEIR, AND THE SLOPING PORTION BEING PERFORATE INTERIORLY OF AND BELOW THE TOP OF THE ASSOCIATED OVERFLOW WEIR.
Claim 2
Dependent Claim
119 words
A LIQUID-LIQUID CONTACTING APPARATUS COMPRISING A VESSEL, A SERIES OF VERTICALLY SPACED TRANSVERSE PLATES WITHIN SAID VESSEL, EACH OF SAID PLATES HAVING A RELATIVELY HORZONTAL PORTION EXTENDING OVER A LARGER PORTION OF THE TRANSVERSE AREA OF SAID VESSEL, EACH OF SAID PLATES BEING PROVIDED WITH AN UPTURNED OVERFLOW WEIR AT ONE MARGIN AND A DOWNTURNED UNDERFLOW WEIR AT ANOTHER MARGIN, THE UPTURNED WEIRS OF SUCCESSIVE PLATES BEING SUBSTANTIALLY LATERALLY OPPOSITE ONE ANOTHER OF DEFLECTOR PLATE EXTENDING OVER EACH OVERFLOW WEIR FROM THE WALL OF SAID VESSEL AND SLOPING DOWNWARDLY TO A POINT INWARD OF AND BELOW THE LEVEL OF SAID OVERFLOW WEIR, AND THE SLOPING PORTION BEING PERFORATE INTERIORLY OF AND BELOW THE TOP OF THE ASSOCIATED OVERFLOW WEIR.
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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) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |