US2842485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bidistillation
Assignee: Schott AG
•
Filing: 1953-09-29
•
Granted: 1958-07-08
•
Expires: 1973-09-29
Abstract
No abstract record available.
Inventors
- 👤 Zellner Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:00
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/14; B; B01; B01D; B01D3/00; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/045; Y; Y10; Y10S; Y10S203/00; Y10S203/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
AN APPARATUS FOR BIDISTILLATION OF A LIQUID CONTAINING NON-VOLATILE IMPURITIES CONSISTING OF A PRIMARY VAPORIZER, A HEAT EXCHANGER WHICH IS COMPOSED OF A SPIRAL TUBE SURROUNDED BY A MANTLE, THIS MANTLE FORMING A SECONDARY VAPORIZING SPACE BETWEEN ITSELF AND THE SPIRAL TUBE, THE UPPER END OF THE SPIRAL TUBE BEING CONNECTED TO SAID PRIMARY VAPORIZER, A VESSEL FOR RECEIVING THE MONODISTILLATE WHEREBY THE INLET OPENING OF THIS VESSEL IS CONNECTED TO THE LOWER END OF SAID SPIRAL TUBE, A THROTTLE VALVE WHICH IS ARRANGED WITHIN A PIPE, THIS PIPE CONNECTING THE OUTLET OF SAID VESSEL TO THE LOWER END OF SAID SECONDARY VAPORIZING SPACE IN WHICH THE MONODISTILLATE IS VAPORIZED COMPLETELY TO SECONDARY VAPOR BY HEAT EXCHANGE WITH THE PRIMARY VAPOR, A STEADYING VESSEL CONNECTED TO THE UPPER HALF END OF SAID SECONDARY VAPORIZING ROOM, A CONDENSER FOR CONDENSING THE SECONDARY VAPOR WITH ITS UPPER END CONNECTED TO THE OUTLET OF THE STEADYING VESSEL, A VACUUM PUMP AND A VESSEL FOR RECEIVING THE BIDISTILLATE, BOTH CONNECTED TO THE LOWER END OF SAID CONDENSER.
Claim 2
Independent Claim
173 words
AN APPARATUS FOR BIDISTILLATION OF A LIQUID CONTAINING NON-VOLATILE IMPURITIES CONSISTING OF A PRIMARY VAPORIZER, A HEAT EXCHANGER WHICH IS COMPOSED OF A SPIRAL TUBE SURROUNDED BY A MANTLE, THIS MANTLE FORMING A SECONDARY VAPORIZING SPACE BETWEEN ITSELF AND THE SPIRAL TUBE, THE UPPER END OF THE SPIRAL TUBE BEING CONNECTED TO SAID PRIMARY VAPORIZER, A VESSEL FOR RECEIVING THE MONODISTILLATE WHEREBY THE INLET OPENING OF THIS VESSEL IS CONNECTED TO THE LOWER END OF SAID SPIRAL TUBE, A THROTTLE VALVE WHICH IS ARRANGED WITHIN A PIPE, THIS PIPE CONNECTING THE OUTLET OF SAID VESSEL TO THE LOWER END OF SAID SECONDARY VAPORIZING SPACE IN WHICH THE MONODISTILLATE IS VAPORIZED COMPLETELY TO SECONDARY VAPOR BY HEAT EXCHANGE WITH THE PRIMARY VAPOR, A STEADYING VESSEL CONNECTED TO THE UPPER HALF END OF SAID SECONDARY VAPORIZING ROOM, A CONDENSER FOR CONDENSING THE SECONDARY VAPOR WITH ITS UPPER END CONNECTED TO THE OUTLET OF THE STEADYING VESSEL, A VACUUM PUMP AND A VESSEL FOR RECEIVING THE BIDISTILLATE, BOTH CONNECTED TO THE LOWER END OF SAID CONDENSER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |