Patent US2908556A successfully refreshed from Google Patents.
US2908556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reactor design
Assignee: Millennium Petrochemicals Inc
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Filing: 1957-08-08
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Granted: 1959-10-13
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Expires: 1977-08-08
Abstract
No abstract record available.
Inventors
- 👤 Lloyd M Watson
- 👤 Donald P Jenks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:28
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/18; B01J19/1862; C; C07; C07F; C07F1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
208 words
AN APPARATUS COMPRISING A HORIZONTALLY ELONGATED VESSEL CONTAINING A PLURALITY OF TRANSVERSE VERTICALLY DISPOSED, SPACED-APART BAFFLE MEANS, SAID BAFFLE MEANS BEING SUBSTANTIALLY SHORT OF THE TOP OF SAID VESSEL THEREBY PROVIDING A PLURALITY OF COMPARTMENTS EXTENDING FROM ONE END OF SAID VESSEL TO ITS OTHER END, INLET MEANS FOR INTRODUCING A DIMERIZABLE OLEFIN, A FINELY DIVIDED ALKALI METAL AND LIQUID REACTION MEDIUM INTO THE FIRST OF SAID COMPARTMENTS AT ONE END OF SAID VESSEL, AGITATING MEANS FOR MAINTAINING REACTION MIXTURE IN SAID FIRST COMPARTMENT UNDER EFFECTIVE AGITATION, OUTLET MEANS AT THE BOTTOM OF THE OPPOSITE END PORTION OF SAID VESSEL FOR PRODUCT WITH DRAWAL FROM SAID VESSEL, VAPOR OUTLET MEANS AT THE TOP OF SAID OPPOSITE END PORTION OF THE VESSEL FOR WITHDRAWAL OF VAPOR FROM SAID VESSEL, CONDENSING MEANS FOR CONDENSING LIQUID REACTION MEDIUM FROM SAID WITHDRAWN VAPOR, MEANS FOR INTRODUCING SAID CONDENSED LIQUID REACTION MEDIUM INTO SAID VESSEL AT A PORTION THEREOF IN THE VAPOR SPACE ABOVE SAID FIRST COMPARTMENT, AND MEANS DISPOSED IN THE VAPOR SPACE ABOVE SAID FIRST COMPARTMENT BUT SHORT OF THE TOP OF SAID VESSEL ADAPTED TO DISPERSE SAID CONDENSED OF SAID REACTION MEDIUM ONTO THE INNER WALL SURFACES OF SAID VESSEL TO MAINTAIN SAID SURFACES SUBSTANTIALLY FREE OF ADHERING SOLID-LIKE DEPOSITS.
Claim 2
Independent Claim
208 words
AN APPARATUS COMPRISING A HORIZONTALLY ELONGATED VESSEL CONTAINING A PLURALITY OF TRANSVERSE VERTICALLY DISPOSED, SPACED-APART BAFFLE MEANS, SAID BAFFLE MEANS BEING SUBSTANTIALLY SHORT OF THE TOP OF SAID VESSEL THEREBY PROVIDING A PLURALITY OF COMPARTMENTS EXTENDING FROM ONE END OF SAID VESSEL TO ITS OTHER END, INLET MEANS FOR INTRODUCING A DIMERIZABLE OLEFIN, A FINELY DIVIDED ALKALI METAL AND LIQUID REACTION MEDIUM INTO THE FIRST OF SAID COMPARTMENTS AT ONE END OF SAID VESSEL, AGITATING MEANS FOR MAINTAINING REACTION MIXTURE IN SAID FIRST COMPARTMENT UNDER EFFECTIVE AGITATION, OUTLET MEANS AT THE BOTTOM OF THE OPPOSITE END PORTION OF SAID VESSEL FOR PRODUCT WITH DRAWAL FROM SAID VESSEL, VAPOR OUTLET MEANS AT THE TOP OF SAID OPPOSITE END PORTION OF THE VESSEL FOR WITHDRAWAL OF VAPOR FROM SAID VESSEL, CONDENSING MEANS FOR CONDENSING LIQUID REACTION MEDIUM FROM SAID WITHDRAWN VAPOR, MEANS FOR INTRODUCING SAID CONDENSED LIQUID REACTION MEDIUM INTO SAID VESSEL AT A PORTION THEREOF IN THE VAPOR SPACE ABOVE SAID FIRST COMPARTMENT, AND MEANS DISPOSED IN THE VAPOR SPACE ABOVE SAID FIRST COMPARTMENT BUT SHORT OF THE TOP OF SAID VESSEL ADAPTED TO DISPERSE SAID CONDENSED OF SAID REACTION MEDIUM ONTO THE INNER WALL SURFACES OF SAID VESSEL TO MAINTAIN SAID SURFACES SUBSTANTIALLY FREE OF ADHERING SOLID-LIKE DEPOSITS.
References Cited (Backward Citations)
US1876994A
Cited
US2760850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |