US2585202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molecular still
Assignee: Phillips Petroleum Co
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Filing: 1948-05-24
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Granted: 1952-02-12
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Expires: 1968-05-24
Abstract
No abstract record available.
Inventors
- 👤 William B Whitney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:13
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/12; Y; Y10; Y10S; Y10S159/00; Y10S159/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
AN APPARATUS FOR USE IN DISTILLATION OF MATERIAL UNDER HIGH VACUUM COMPRISING A VERTICALLY DISPOSED CYLINDRICAL SHELL, A ROTATABLE DISK EVAPORATOR DISPOSED TO ROTATE AROUND THE AXIS OF SAID CYLINDRICAL SHELL AS A CENTER, A NONROTATABLE CONDENSER RISK DISPOSED CONCENTRICALLY WITH RESPECT TO SAID AXIS AND TO SAID EVAPORATOR DISK AND DISPOSED ABOVE SAID EVAPORATOR DISK, A ROTATABLE EVAPORATOR RING DISPOSED TO ROTATE AROUND THE AXIS OF SAID CYLINDRICAL SHELL AS A CENTER AND DISPOSED BETWEEN SAID EVAPORATOR AND CONDENSER DISKS, A NONROTATABLE CONDENSER RING DISPOSED CONCENTRICALLY WITH RESPECT TO SAID AXIS AND ABOVE SAID NONROTATABLE CONDENSER RISK, A SECOND ROTATABLE EVAPORATOR DISK DISPOSED BELOW SAID NONROTATABLE CONDENSER RING AND CONCENTRICALLY WITH RESPECT TO SAID AXIS AND ABOVE SAID NONROTATABLE CONDENSER RISK, A SECOND NONROTATABLE CONDENSER DISK DISPOSED ABOVE SAID CONDENSER RING, MEANS ATTACHED TO AND ROTATABLE THEREWITH FOR HEATING AND MEANS FOR ROTATING SAID
Claim 2
Independent Claim
145 words
AN APPARATUS FOR USE IN DISTILLATION OF MATERIAL UNDER HIGH VACUUM COMPRISING A VERTICALLY DISPOSED CYLINDRICAL SHELL, A ROTATABLE DISK EVAPORATOR DISPOSED TO ROTATE AROUND THE AXIS OF SAID CYLINDRICAL SHELL AS A CENTER, A NONROTATABLE CONDENSER RISK DISPOSED CONCENTRICALLY WITH RESPECT TO SAID AXIS AND TO SAID EVAPORATOR DISK AND DISPOSED ABOVE SAID EVAPORATOR DISK, A ROTATABLE EVAPORATOR RING DISPOSED TO ROTATE AROUND THE AXIS OF SAID CYLINDRICAL SHELL AS A CENTER AND DISPOSED BETWEEN SAID EVAPORATOR AND CONDENSER DISKS, A NONROTATABLE CONDENSER RING DISPOSED CONCENTRICALLY WITH RESPECT TO SAID AXIS AND ABOVE SAID NONROTATABLE CONDENSER RISK, A SECOND ROTATABLE EVAPORATOR DISK DISPOSED BELOW SAID NONROTATABLE CONDENSER RING AND CONCENTRICALLY WITH RESPECT TO SAID AXIS AND ABOVE SAID NONROTATABLE CONDENSER RISK, A SECOND NONROTATABLE CONDENSER DISK DISPOSED ABOVE SAID CONDENSER RING, MEANS ATTACHED TO AND ROTATABLE THEREWITH FOR HEATING AND MEANS FOR ROTATING SAID
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) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |