Patent US2817415A successfully refreshed from Google Patents.
US2817415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contacting of fluid phases
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1954-09-01
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Granted: 1957-12-24
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Expires: 1974-09-01
Abstract
No abstract record available.
Inventors
- 👤 Hollister B Sykes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:41
CPC Classifications
B; B01; B01D; B01D47/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD OF COUNTERCURRENTLY CONTACTING A VAPOR WITH A LIQUID WHICH COMPRISES THE STEPSOF: PROVIDING A VERTICALLY DISPOSED SUBSTANTIALLY CYLINDRICAL CONTACTING ZONE, INTRODUCING THE VAPOR WITHIN THE LOWER END OF SAID ZONE ADVANCING THE VAPOR UPWARD THROUGH THE SAID ZONE IN A SWIRLING SUBSTANTIALLY HELICAL FLOW PATH HAVING A LATERALLY OUTER PERIPHERY DEFINED BY THE WALL SAID CONTACTING ZONE AND A LATERALLY INNER PERPHERY POSITIONED INTERMEDIATE THE AXIS OF THE ZONE AND THE WALL OF THE ZONE WHEREBY A CENTRAL VERTICAL FLOW SPACE IS PROVIDED BETWEEN THE SAID AXIS AND THE SAID INNER PERPHERY THE STREAM OF VAPOR FLOWING ALONG SAID HELICAL FLOW PATH HAVING A VERTICAL CROSS SECTION WHOSE HEIGHT IS DEFINED BY THE PITCH OF SAID HELICAL FLOW PATH, SAID PITCH BEING IN THE RANGE OF FROM 0.25 TO 2 TIMES THGE DIAMETER OF SAID CONTACTING ZONE, THE UPPER AND LOWER PERPHERIES OF SAID
Claim 2
Independent Claim
146 words
A METHOD OF COUNTERCURRENTLY CONTACTING A VAPOR WITH A LIQUID WHICH COMPRISES THE STEPSOF: PROVIDING A VERTICALLY DISPOSED SUBSTANTIALLY CYLINDRICAL CONTACTING ZONE, INTRODUCING THE VAPOR WITHIN THE LOWER END OF SAID ZONE ADVANCING THE VAPOR UPWARD THROUGH THE SAID ZONE IN A SWIRLING SUBSTANTIALLY HELICAL FLOW PATH HAVING A LATERALLY OUTER PERIPHERY DEFINED BY THE WALL SAID CONTACTING ZONE AND A LATERALLY INNER PERPHERY POSITIONED INTERMEDIATE THE AXIS OF THE ZONE AND THE WALL OF THE ZONE WHEREBY A CENTRAL VERTICAL FLOW SPACE IS PROVIDED BETWEEN THE SAID AXIS AND THE SAID INNER PERPHERY THE STREAM OF VAPOR FLOWING ALONG SAID HELICAL FLOW PATH HAVING A VERTICAL CROSS SECTION WHOSE HEIGHT IS DEFINED BY THE PITCH OF SAID HELICAL FLOW PATH, SAID PITCH BEING IN THE RANGE OF FROM 0.25 TO 2 TIMES THGE DIAMETER OF SAID CONTACTING ZONE, THE UPPER AND LOWER PERPHERIES OF SAID
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) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |