US2954330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillation column
Assignee: Celanese Corp
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Filing: 1955-08-08
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Granted: 1960-09-27
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Expires: 1975-08-08
Abstract
No abstract record available.
Inventors
- 👤 Earl G Schmieding
- 👤 James E Wall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:56
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/30; Y; Y10; Y10S; Y10S159/00; Y10S159/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A DISTILLATION COLUMN COMPRISING A CASING HAVING A LIQUID INLET AND A LIQUID OUTLET AND THROUGH WHICH CASING A STREAM OF THE LIQUID BEING DISTILLED FLOWS AWAY FROM SAID LIQUID INLET AND TOWARDS SAID LIQUID OUTLET, A FORAMINOUS MEMBER POSITIONED IN SAID CASING AND HAVING A PORTION THEREOF IMMERSED IN SAID LIQUID TO BE WETTED THEREBY, MEANS FOR MOVING SAID FORAMINOUS MEMBER TO BRING THE ENTIRE SURFACE THEREOF INTO CONTACT WITH THE LIQUID TO BE WETTED THEREBY, BY IMMERSING SUCCESSIVE A PORTION THEREOF IMMERSED IN SAID LIQUID TO BE DURING THE COURSE OF ITS MOVEMENT, MEANS FOR CAUSING VAPORS OF THE LIQUID BEING DISTILLED TO PASS IN A DIRECTION AWAY FROM THE LIQUID OUTLET AND TOWARDS THE LIQUID INLET AND FOR CAUSING SUBSTANTIALLY ALL OF SAID VAPORS TO PASS THROUGH THE THICKNESS OF THAT PORTION OF THE SAID FORAMINOUS MEMBER WHICH IS WETTED BY BUT NOT IMMERSED IN THE LIQUID AND MEANS FOR MAINTAINING THE COMPOSITION OF THE PORTIONS OF SAID LIQUID NEARER TO THE LIQUID INLET HIGHER IN RELATIVELY VOLATILE COMPONENTS AND LOWER IN RELATIVELY NON-VOLATILE COMPONENTS THAN THE PORTIONS OF SAID LIQUID NEARER TO SAID LIQUID OUTLET.
Claim 2
Dependent Claim
189 words
A DISTILLATION COLUMN COMPRISING A CASING HAVING A LIQUID INLET AND A LIQUID OUTLET AND THROUGH WHICH CASING A STREAM OF THE LIQUID BEING DISTILLED FLOWS AWAY FROM SAID LIQUID INLET AND TOWARDS SAID LIQUID OUTLET, A FORAMINOUS MEMBER POSITIONED IN SAID CASING AND HAVING A PORTION THEREOF IMMERSED IN SAID LIQUID TO BE WETTED THEREBY, MEANS FOR MOVING SAID FORAMINOUS MEMBER TO BRING THE ENTIRE SURFACE THEREOF INTO CONTACT WITH THE LIQUID TO BE WETTED THEREBY, BY IMMERSING SUCCESSIVE A PORTION THEREOF IMMERSED IN SAID LIQUID TO BE DURING THE COURSE OF ITS MOVEMENT, MEANS FOR CAUSING VAPORS OF THE LIQUID BEING DISTILLED TO PASS IN A DIRECTION AWAY FROM THE LIQUID OUTLET AND TOWARDS THE LIQUID INLET AND FOR CAUSING SUBSTANTIALLY ALL OF SAID VAPORS TO PASS THROUGH THE THICKNESS OF THAT PORTION OF THE SAID FORAMINOUS MEMBER WHICH IS WETTED BY BUT NOT IMMERSED IN THE LIQUID AND MEANS FOR MAINTAINING THE COMPOSITION OF THE PORTIONS OF SAID LIQUID NEARER TO THE LIQUID INLET HIGHER IN RELATIVELY VOLATILE COMPONENTS AND LOWER IN RELATIVELY NON-VOLATILE COMPONENTS THAN THE PORTIONS OF SAID LIQUID NEARER TO SAID LIQUID OUTLET.
References Cited (Backward Citations)
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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) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |