Patent US5237565A successfully refreshed from Google Patents.
Patent US2711992A successfully refreshed from Google Patents.
US2711992A
Expired / Lapsed
US
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Means for controlling pressure in a column having total condensing vapors
Assignee: Universal Oil Products Co
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Filing: 1951-06-16
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Granted: 1955-06-28
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Expires: 1971-06-16
Abstract
No abstract record available.
Inventors
- 👤 Charles W Kerner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:26
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/0082; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A PRESSURE CONTROLL SYSTEM FOR A COLUMN HAVING TOTAL CONDENSING VAPORS AND VAPOR CONDENSER POSITION AT A HIGHER ELEVATION THAN A CONDENSATE RECEIVER, THE IMPROVED METHOD OF MAINTAINING PRESSURE CONTROL ON SAID COLUMN AND CONDENSING VAPORS, WHICH COMPRISES, PASSING VAPORS FROM SAID COLUMN TO A COOLING AND CONDENSING ZONE AT A REGULATED FLOW RESPONSIVE TO THE PRESSURE TO THE VAPOR STREAM ISSUING FROM THE COLUMN, COOLING AND CONDENSING SAID VAPORS IN SAID CONDENSING ZONE AND PASSING RESULTING CONDENSATE IN A CONFINED CHANNEL TO SAID CONDENSATE RECEIVING ZONE AND MAINTAINING A LIQUID SEAL BETWEEN SAID CONDENSING AND RECEIVING ZONES, AND MAINTAINING A VAPOR BY-PASS AROUND SAID CONDENSING ZONE TO EQUALIZE PRESSURE BETWEEN THE UPPER PORTION OF SAID COLUMN AND SAID CONDENSATE RECEIVING ZONE.
Claim 2
Dependent Claim
123 words
IN A PRESSURE CONTROLL SYSTEM FOR A COLUMN HAVING TOTAL CONDENSING VAPORS AND VAPOR CONDENSER POSITION AT A HIGHER ELEVATION THAN A CONDENSATE RECEIVER, THE IMPROVED METHOD OF MAINTAINING PRESSURE CONTROL ON SAID COLUMN AND CONDENSING VAPORS, WHICH COMPRISES, PASSING VAPORS FROM SAID COLUMN TO A COOLING AND CONDENSING ZONE AT A REGULATED FLOW RESPONSIVE TO THE PRESSURE TO THE VAPOR STREAM ISSUING FROM THE COLUMN, COOLING AND CONDENSING SAID VAPORS IN SAID CONDENSING ZONE AND PASSING RESULTING CONDENSATE IN A CONFINED CHANNEL TO SAID CONDENSATE RECEIVING ZONE AND MAINTAINING A LIQUID SEAL BETWEEN SAID CONDENSING AND RECEIVING ZONES, AND MAINTAINING A VAPOR BY-PASS AROUND SAID CONDENSING ZONE TO EQUALIZE PRESSURE BETWEEN THE UPPER PORTION OF SAID COLUMN AND SAID CONDENSATE RECEIVING ZONE.
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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) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |