Patent US2909534A successfully refreshed from Google Patents.
US2909534A
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US
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Vertical contactor with features
Assignee: Stratford Engineering Corp
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Filing: 1957-04-03
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Granted: 1959-10-20
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Expires: 1977-04-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert W Stratford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:49
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/1868; B01J19/1875; B01J10/00; B01J10/02; B01J19/0086; B01J19/1887
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD OF CONDUCTING A CHEMICAL REACTION BETWEEN AT LEAST TWO REACTANTS COMPRISING THE STEPS OF ESTABLISHING A CLOSED CYCLIC FLOWING STREAM OF REACTION PRODUCT AXIALLY OF A CIRCULATING TUBE, THE STREAM PASSING CENTRALLY OF SAID TUBE AND THEN AROUND ITS EXTERIOR SURFACE, FLOWING A FIRST ONE OF SAID REACTANTS INTO SAID STREAM, SUBJECTING THE FIRST REAGENT-RICH STREAM TO THOROUGH MECHANICAL MIXING, FLOWING A SECOND ONE OF SAID REACTANTS INTO SAID FIRST REAGENT-RICH AND MIXED STREAM, SUBJECTING THE FIRST AND SECOND REAGENT-RICH STREAM TO THOROUGH MECHANICAL MIXING AND SUBDIVIDING THE STREAM INTO A PLURALITY OF HIGH SURFACE EXPOSURE JETS IN A ZONE OF LOW PRESSURE TO HEAT TRANSFER THE STREAM AND FLASH OFF ANY VOLATILES THEREFROM DURING ITS CYCLIC CLOSED FLOW AXIAL OF SAID CIRCULATING TUBE.
Claim 2
Independent Claim
126 words
A METHOD OF CONDUCTING A CHEMICAL REACTION BETWEEN AT LEAST TWO REACTANTS COMPRISING THE STEPS OF ESTABLISHING A CLOSED CYCLIC FLOWING STREAM OF REACTION PRODUCT AXIALLY OF A CIRCULATING TUBE, THE STREAM PASSING CENTRALLY OF SAID TUBE AND THEN AROUND ITS EXTERIOR SURFACE, FLOWING A FIRST ONE OF SAID REACTANTS INTO SAID STREAM, SUBJECTING THE FIRST REAGENT-RICH STREAM TO THOROUGH MECHANICAL MIXING, FLOWING A SECOND ONE OF SAID REACTANTS INTO SAID FIRST REAGENT-RICH AND MIXED STREAM, SUBJECTING THE FIRST AND SECOND REAGENT-RICH STREAM TO THOROUGH MECHANICAL MIXING AND SUBDIVIDING THE STREAM INTO A PLURALITY OF HIGH SURFACE EXPOSURE JETS IN A ZONE OF LOW PRESSURE TO HEAT TRANSFER THE STREAM AND FLASH OFF ANY VOLATILES THEREFROM DURING ITS CYCLIC CLOSED FLOW AXIAL OF SAID CIRCULATING TUBE.
References Cited (Backward Citations)
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US2720447A
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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) | 1962-10-19 | 1963-04-20 | 1963-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-19 | 1967-04-20 | 1967-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-19 | 1971-04-20 | 1971-10-20 | $7700.00 | Window Closed / Lapsed |