Patent US2262827A successfully refreshed from Google Patents.
Patent US3443909A successfully refreshed from Google Patents.
US3443909A
Expired / Lapsed
US
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Rotary drum reactor
Assignee: Inventa AG fuer Forschung und Patentverwertung
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Filing: 1966-09-06
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Granted: 1969-05-13
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Expires: 1986-09-06
Abstract
No abstract record available.
Inventors
- 👤 Gunter Goossens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:53
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/28; B01F; B01F29/00; B01F29/60; B01F29/63; B01J19/18; B01J19/20; B01F29/40; B01F29/401; B01F29/402; B01F29/4022; B01F29/40221; B01F29/403; B01F29/4033; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00054; B01J2219/00056; B01J2219/00058; B01J2219/00074; B01J2219/00087; B01J2219/00094; B01J2219/00168; B01J2219/00177; B01J2219/00182; B01J2219/18; B01J2219/187
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
ROTARY DRUM REACTOR SUITABLE FOR USE WITH HIGHLY VISCOUS MATERIALS COMPRISING A REACTION VESSEL; A ROTATABLE DRUM DISPOSED THEREIN BEING OPEN AT BOTH ENDS AND OCCUPYING MOST OF THE SPACE OF SAID VESSEL; AND SPIRAL RIGIDLY CONNECTED TO THE INSIDE OF SAID DRUM AND EXTENDING THE FULL LENGTH THEREOF, SAID SPIRAL FORCEDLY TRANSPORTING THE REACTANTS THROUGH SAID DRUM WITHOUT LEAKAGE; MEANS FOR ROTATING AND CONTROLLING THE SPEED OF ROTATION OF SAID DRUM; INLET MEANS FOR THE REACTANTS ON ONE END OF SAID VESSEL LEADING THE SAME BETWEEN THE WALL OF THE VESSEL AND THAT OF SAID DRUM TO THE OPPOSITE END THEREOF; OUTLET MEANS OPPOSITE SAID INLET MEANS AT THE SAME END OF THE REACTOR; DISCHARGE MEANS FOR THE REACTED MATERIALS WITHIN SAID OUTLET MEANS; AND A JACKET SURROUNDING THE OUTER PERPHERY OF SAID REACTION VESSEL FOR HEATING AND COOLING FLUIDS.
Claim 2
Dependent Claim
141 words
ROTARY DRUM REACTOR SUITABLE FOR USE WITH HIGHLY VISCOUS MATERIALS COMPRISING A REACTION VESSEL; A ROTATABLE DRUM DISPOSED THEREIN BEING OPEN AT BOTH ENDS AND OCCUPYING MOST OF THE SPACE OF SAID VESSEL; AND SPIRAL RIGIDLY CONNECTED TO THE INSIDE OF SAID DRUM AND EXTENDING THE FULL LENGTH THEREOF, SAID SPIRAL FORCEDLY TRANSPORTING THE REACTANTS THROUGH SAID DRUM WITHOUT LEAKAGE; MEANS FOR ROTATING AND CONTROLLING THE SPEED OF ROTATION OF SAID DRUM; INLET MEANS FOR THE REACTANTS ON ONE END OF SAID VESSEL LEADING THE SAME BETWEEN THE WALL OF THE VESSEL AND THAT OF SAID DRUM TO THE OPPOSITE END THEREOF; OUTLET MEANS OPPOSITE SAID INLET MEANS AT THE SAME END OF THE REACTOR; DISCHARGE MEANS FOR THE REACTED MATERIALS WITHIN SAID OUTLET MEANS; AND A JACKET SURROUNDING THE OUTER PERPHERY OF SAID REACTION VESSEL FOR HEATING AND COOLING FLUIDS.
References Cited (Backward Citations)
US1443529A
Cited
US3057702A
Cited
US2894824A
Cited
US3257173A
Cited
US3220804A
Cited
US3335111A
Cited
US3343922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |