Patent US2889211A successfully refreshed from Google Patents.
US2889211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous polymerizing apparatus
Assignee: Bayer AG
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Filing: 1955-08-09
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Granted: 1959-06-02
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Expires: 1975-08-09
Abstract
No abstract record available.
Inventors
- 👤 Rodenacker Wolf
- 👤 Schnegg Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:59
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
AN APPARATUS FOR THE CONTINUOUS POLYMERIZATION OF A FLUID MIXTURE COMPRISING A CASING, AN EVAPORATING CHAMBER DISPOSED WITHIN THE UPPER END O SAID CASTING, AN ASCENDING TUBE AND A PLURALITY OF DESCENDING TUBES VERTICALLY DISPOSED EITHIN SAID CASING, THE UPPER ENDS OF ALL OF SAID TUBES BEING CONNECTED TO SAID EVAPORATING CHAMBER, THE LOWER END OF SAID ASCENDING TUBE BEING SEALED, THROTTLE MEANS BEING OPERATIVELY ASSOCIATED WITH THE LOWER ENDS OF SAID DESCENDING TUBES, A COLLECTING CHAMBER CONNECTED TO THE LOWER END OF SAID CASING FOR RECEIVING CONNECTED TO THE LOWER END OF SAID DESCENDING TUBES, FLUID CONDUIT MEANS DISPOSED ADJACENT THE LOWER END OF SAID ASCENDING TUBE FOR INTRODUCING A SUPPLY OF MONOMERIC FLUID INTO THE BOTTOM OF SAID ASCENDING TUBE AND THE TOTAL CROSS-SECTIONAL AREA OF SAID DESCENDING TUBES, BEING SUFFICIENTLY GREATER THAN THE CROSS-SECTIONAL AREA OF SAID ASCENDING TUBE TO ALLOW THE LEVEL OF FLUID IN SAID EVAPORATING CHAMBER TO BE CONTROLLED AND THE RATE OF FLOW OF FLUID THROUGH SAID DESCENDING TUBES TO BE RETARDED TO A RATE WHICH IS SLOWER THAN THE RATE OF FLOW THROUGH SAID ASCENDING TUBE BY ADJUSTMENT OF SAID THROTTLE MEANS.
Claim 2
Independent Claim
190 words
AN APPARATUS FOR THE CONTINUOUS POLYMERIZATION OF A FLUID MIXTURE COMPRISING A CASING, AN EVAPORATING CHAMBER DISPOSED WITHIN THE UPPER END O SAID CASTING, AN ASCENDING TUBE AND A PLURALITY OF DESCENDING TUBES VERTICALLY DISPOSED EITHIN SAID CASING, THE UPPER ENDS OF ALL OF SAID TUBES BEING CONNECTED TO SAID EVAPORATING CHAMBER, THE LOWER END OF SAID ASCENDING TUBE BEING SEALED, THROTTLE MEANS BEING OPERATIVELY ASSOCIATED WITH THE LOWER ENDS OF SAID DESCENDING TUBES, A COLLECTING CHAMBER CONNECTED TO THE LOWER END OF SAID CASING FOR RECEIVING CONNECTED TO THE LOWER END OF SAID DESCENDING TUBES, FLUID CONDUIT MEANS DISPOSED ADJACENT THE LOWER END OF SAID ASCENDING TUBE FOR INTRODUCING A SUPPLY OF MONOMERIC FLUID INTO THE BOTTOM OF SAID ASCENDING TUBE AND THE TOTAL CROSS-SECTIONAL AREA OF SAID DESCENDING TUBES, BEING SUFFICIENTLY GREATER THAN THE CROSS-SECTIONAL AREA OF SAID ASCENDING TUBE TO ALLOW THE LEVEL OF FLUID IN SAID EVAPORATING CHAMBER TO BE CONTROLLED AND THE RATE OF FLOW OF FLUID THROUGH SAID DESCENDING TUBES TO BE RETARDED TO A RATE WHICH IS SLOWER THAN THE RATE OF FLOW THROUGH SAID ASCENDING TUBE BY ADJUSTMENT OF SAID THROTTLE MEANS.
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) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |