US2580646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillation tower
Assignee: Universal Oil Products Co
•
Filing: 1948-04-14
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Granted: 1952-01-01
•
Expires: 1968-04-14
Abstract
No abstract record available.
Inventors
- 👤 Donald H Belden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:01
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/26; B01D3/28; B01D3/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
A DISTILLATION UNIT COMPRISING IN COMBINATION, A VERTICALLY ELONGATED DISTILLATION TUBE, HEATING MEANS FOR SAID DISTILLATION TUBE, LIQUID INLET MEANS AT THE UPPER END OF SAID DISTILLATION TUBE FOR DISTRIBUTING A LIQUID FILM TO THE INSIDE WALL THEREOF, SPACED LIQUID DISTRIBUTING BAFFLES WITHIN THE UPPER PORTION AND REMOVABLY SUSPENDED FROM THE TOP OF SAID DISTILLATION TUBE AND DETACHABLY CONNECTED TO EACH OTHER BY HOOK AND LINKAGE MEANS, EACH OF SAID DISTRIBUTING BAFFLES HAVING A TUBULAR UPPER PORTION AND A FLARED LOWER SKIRT PORTION, THE LATTER SPACED CONCENTRICALLY WITHIN AND CLOSE TO SAID DISTILLATION TUBE TO FORM NEW LIQUID WALL FILMS, SAID TUBULAR UPPER PORTION HAVING VAPOR OUTLETS DISCHARGING INTO THE INTERIOR OF SAID TUBE WHEREBY DISTILLED VAPOR MAY TRAVEL UPWARDLY THROUGH THE CENTRAL PORTION OF SAID DISTILLATION TUBE, A VAPOR OUTLET AT THE UPPER END OF SAID DISTILLATION TUBE AND LIQUID OUTLET MEANS AT THE LOWER END THEREOF SUITABLE TO DISCHARGE THE UNVAPORIZED PORTION OF SAID LIQUID STREAM.
Claim 2
Dependent Claim
158 words
A DISTILLATION UNIT COMPRISING IN COMBINATION, A VERTICALLY ELONGATED DISTILLATION TUBE, HEATING MEANS FOR SAID DISTILLATION TUBE, LIQUID INLET MEANS AT THE UPPER END OF SAID DISTILLATION TUBE FOR DISTRIBUTING A LIQUID FILM TO THE INSIDE WALL THEREOF, SPACED LIQUID DISTRIBUTING BAFFLES WITHIN THE UPPER PORTION AND REMOVABLY SUSPENDED FROM THE TOP OF SAID DISTILLATION TUBE AND DETACHABLY CONNECTED TO EACH OTHER BY HOOK AND LINKAGE MEANS, EACH OF SAID DISTRIBUTING BAFFLES HAVING A TUBULAR UPPER PORTION AND A FLARED LOWER SKIRT PORTION, THE LATTER SPACED CONCENTRICALLY WITHIN AND CLOSE TO SAID DISTILLATION TUBE TO FORM NEW LIQUID WALL FILMS, SAID TUBULAR UPPER PORTION HAVING VAPOR OUTLETS DISCHARGING INTO THE INTERIOR OF SAID TUBE WHEREBY DISTILLED VAPOR MAY TRAVEL UPWARDLY THROUGH THE CENTRAL PORTION OF SAID DISTILLATION TUBE, A VAPOR OUTLET AT THE UPPER END OF SAID DISTILLATION TUBE AND LIQUID OUTLET MEANS AT THE LOWER END THEREOF SUITABLE TO DISCHARGE THE UNVAPORIZED PORTION OF SAID LIQUID STREAM.
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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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |