Patent US3071520A successfully refreshed from Google Patents.
US3071520A
Expired / Lapsed
US
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Apparatus for controlling the loading of a fractionation column
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-07-06
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Granted: 1963-01-01
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Expires: 1979-07-06
Abstract
No abstract record available.
Inventors
- 👤 Jack W Smalling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:11
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/425
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
IN A FRACTIONATING DEVICE INCLUDING A TOWER HAVING SPACED FRACTIONATING PLATES THEREIN, THE IMPROVEMENT WHICH COMPRISES LOADING DETECTION MEANS INCLUDING A FIRST TEMPERATURE DETECTOR AND A SECOND TEMPERATURE DETECTOR BOTH IN THE VAPOR SPACE BETWEEN TWO ADJACENT OF SAID PLATES, MEANS FOR POSITIVELY HEATING SAID FIRST DETECTOR TO A TEMPERATURE HIGHER THAN THAT OF SAID SECOND DETECTOR AND MEANS COUPLED TO SAID DETECTORS FOR MEASURING THE DETECTED TEMPERATURE.
Claim 2
Dependent Claim
68 words
IN A FRACTIONATING DEVICE INCLUDING A TOWER HAVING SPACED FRACTIONATING PLATES THEREIN, THE IMPROVEMENT WHICH COMPRISES LOADING DETECTION MEANS INCLUDING A FIRST TEMPERATURE DETECTOR AND A SECOND TEMPERATURE DETECTOR BOTH IN THE VAPOR SPACE BETWEEN TWO ADJACENT OF SAID PLATES, MEANS FOR POSITIVELY HEATING SAID FIRST DETECTOR TO A TEMPERATURE HIGHER THAN THAT OF SAID SECOND DETECTOR AND MEANS COUPLED TO SAID DETECTORS FOR MEASURING THE DETECTED TEMPERATURE.
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |