US3300129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal separator of vacuum type
Assignee: Alfa Laval Holdings Amsterdam AB
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Filing: 1964-01-20
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Granted: 1967-01-24
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Brunati Enrico
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:35
CPC Classifications
B; B04; B04B; B04B15/00; B04B15/02; B04B15/08; B04B5/00; B04B5/08; Y; Y10; Y10S; Y10S494/00; Y10S494/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN A CENTRIFUGE OPERATING UNDER VACUUM FOR SEPARATING FROM A LIQUID CERTAIN SUBSTANCES WHICH ARE MORE VOLATILE THAN THE LIQUID, THE COMBINATION OF A CENTRIFUGAL ROTOR HAVING A ROTATION AXIS AND ALSO HAVING AN INLET FOR THE LIQUID AND AN OUTLET FOR CENTRIFUGALLY SEPARATED LIQUID, A HOUSING SURROUNDING THE ROTOR AND FORMING A CHAMBER EXTENDING AROUND THE ROTOR AND SAID AXIS FOR COLLECTING LIQUID DISCHARGED THROUGH SAID OUTLET, A SUCTION LINE LEADING FROM SAID COLLECTING CHAMBER FOR MAINTAINING A PARTIAL VACUUM THEREIN, A DISCHARGE LINE LEADING FROM SAID COLLECTING CHAMBER FOR WITHDRAWING LIQUID THEREFROM, SAID HOUSING FORMING AN OUTER WALL OF THE COLLECTING CHAMBER LOCATED AT A DISTANCE FROM SAID AXIS WHICH IS SUBSTANTIALLY GREATER THAN THE RADIUS OF THE ROTOR, AND A HEATING DEVICE DISPOSED AROUND SAID OUTER WALL.
Claim 2
Dependent Claim
130 words
IN A CENTRIFUGE OPERATING UNDER VACUUM FOR SEPARATING FROM A LIQUID CERTAIN SUBSTANCES WHICH ARE MORE VOLATILE THAN THE LIQUID, THE COMBINATION OF A CENTRIFUGAL ROTOR HAVING A ROTATION AXIS AND ALSO HAVING AN INLET FOR THE LIQUID AND AN OUTLET FOR CENTRIFUGALLY SEPARATED LIQUID, A HOUSING SURROUNDING THE ROTOR AND FORMING A CHAMBER EXTENDING AROUND THE ROTOR AND SAID AXIS FOR COLLECTING LIQUID DISCHARGED THROUGH SAID OUTLET, A SUCTION LINE LEADING FROM SAID COLLECTING CHAMBER FOR MAINTAINING A PARTIAL VACUUM THEREIN, A DISCHARGE LINE LEADING FROM SAID COLLECTING CHAMBER FOR WITHDRAWING LIQUID THEREFROM, SAID HOUSING FORMING AN OUTER WALL OF THE COLLECTING CHAMBER LOCATED AT A DISTANCE FROM SAID AXIS WHICH IS SUBSTANTIALLY GREATER THAN THE RADIUS OF THE ROTOR, AND A HEATING DEVICE DISPOSED AROUND SAID OUTER WALL.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |