US2802345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectification column
Assignee: US Philips Corp
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Filing: 1954-06-17
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Granted: 1957-08-13
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Expires: 1974-06-17
Abstract
No abstract record available.
Inventors
- 👤 Jonkers Cornelius Otto
- 👤 Kohler Jacob Willem Laurens
- 👤 Ster Johannes Van Der
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:31
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/905; Y10S62/906; Y10S62/907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A RECTIFICATION COLUMN FOR SEPARATING GASEOUS MIXTURES COMPRISING A BOILING VESSEL FOR THE FRACTION HAVING THE HIGHEST BOILING POINT, A HEAT EXCHANGER FRO SUPPLYING HEAT TO THE LIQUID IN SAID BOILING VESSEL FROM THE GASEOUS MIXTURE TO BE FRACTIONATED, SAID HEAT EXCHANGER HAVING A HOLLOW SUPPORT MEMBER, AND HEAT EXCHANGER BEING PROVIDED WITH A FIRST PART LOCATED IN SAID BOILING VESSEL THROUGH WHICH HEAT IS SUPPLIED TO THE FRACTION HAVING THE HIGHEST BOILING POINT, AND A SECOND PART INCLUDIND A PLURALITY OF EXTENSIONS EXTENDING SUBSTANTIALLY TRANSVERSELY TO THE FLOW OF SAID GASEOUS MIXTURE LOCATED OUTSIDE OF SAID BOILING VESSEL AND IN THERMAL CONTACT WITH TTHE GASEOUS MIXTURE TO BE FRACTIONATED, SAID FIRST AND SECOND PARTS BEING CONNECTED WITH ONE ANOTHER AND PASSING THROUGH THE BOTTOM OF SAID BOILING VESSEL.
Claim 2
Dependent Claim
129 words
A RECTIFICATION COLUMN FOR SEPARATING GASEOUS MIXTURES COMPRISING A BOILING VESSEL FOR THE FRACTION HAVING THE HIGHEST BOILING POINT, A HEAT EXCHANGER FRO SUPPLYING HEAT TO THE LIQUID IN SAID BOILING VESSEL FROM THE GASEOUS MIXTURE TO BE FRACTIONATED, SAID HEAT EXCHANGER HAVING A HOLLOW SUPPORT MEMBER, AND HEAT EXCHANGER BEING PROVIDED WITH A FIRST PART LOCATED IN SAID BOILING VESSEL THROUGH WHICH HEAT IS SUPPLIED TO THE FRACTION HAVING THE HIGHEST BOILING POINT, AND A SECOND PART INCLUDIND A PLURALITY OF EXTENSIONS EXTENDING SUBSTANTIALLY TRANSVERSELY TO THE FLOW OF SAID GASEOUS MIXTURE LOCATED OUTSIDE OF SAID BOILING VESSEL AND IN THERMAL CONTACT WITH TTHE GASEOUS MIXTURE TO BE FRACTIONATED, SAID FIRST AND SECOND PARTS BEING CONNECTED WITH ONE ANOTHER AND PASSING THROUGH THE BOTTOM OF SAID BOILING VESSEL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-12 | 1961-02-11 | 1961-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-12 | 1965-02-11 | 1965-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-12 | 1969-02-11 | 1969-08-13 | $7700.00 | Window Closed / Lapsed |