Patent US2822323A successfully refreshed from Google Patents.
US2822323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bidistillation
Assignee: Schott AG
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Filing: 1954-04-14
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Granted: 1958-02-04
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Expires: 1974-04-14
Abstract
No abstract record available.
Inventors
- 👤 Zellner Hugo
- 👤 Frank Wilhelm
- 👤 Meinecke Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:50
CPC Classifications
B; B01; B01D; B01D3/00; Y; Y10; Y10S; Y10S203/00; Y10S203/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
AN APPARATUS FOR BIDISTILLATION OF A LIQUID CONTAINING NOT VOLATILE IMPURITIES CONSISTING OF A PRIMARY VAPORIZER, A DROPLET SEPARATOR ARRANGED AT THE UPPER END OF THIS PRIMARY VAPORIZER, A HEAT EXCHANGER WHICH IS COMPOSED OF A SPIRAL TUBE SURROUNDED BY A MANTLE, THIS MANTLE FORMING A SECONDARY VAPORIZING ROOM BETWEEN ITSELF AND THE SPIRAL TUBE, SAID HEAT EXCHANGER BEING ARRANGED ABOVE SAID PRIMARY VAPORIZER, A CENTRAL TUBE WHICH CONNECTS THE UPPER END OF THE PRIMARY VAPORIZER WITH THE UPPER END OF SAID SPIRAL TUBE AND IS SURROUNDED BY THE SPIRAL TUBE, A THROTTLE VALVE BEING ARRANGED WITHIN A PIPE, THIS PIPE CONNECTING THE LOWER END OF SAID SPIRAL TUBE WITH THE UPPER END OF SAID SECONDARY VAPORIZING ROOM, A FURTHER CENTRAL TUBE, WHICH IS CONNECTED TO THE UPPER END OF SAID SECONDARY VAPORIZING ROOM AND IS SURROUNDED BY A FURTHER SPIRAL TUBE THROUGH WHICH COOLING WATER FLOWS, THIS CENTRAL TUBE BEING OPEN AT ITS UPPER END AND BEING ARRANGED WITHIN A MANTLE, THIS MANTLE FORMING A BIDISTILLATION ROOM BETWEEN ITSELF AND THE CENTRAL TUBE, AN OUTLET FOR DRAWING OFF THE BIDISTILLATE, SAID OUTLET BEING ARRANGED AT THE LOWER END OF SAID BIDISTILLATION ROOM, A VACUUM PUMP AND A VESSEL FOR RECEIVING THE BIDISTILLATE, BOTH CON-
Claim 2
Independent Claim
205 words
AN APPARATUS FOR BIDISTILLATION OF A LIQUID CONTAINING NOT VOLATILE IMPURITIES CONSISTING OF A PRIMARY VAPORIZER, A DROPLET SEPARATOR ARRANGED AT THE UPPER END OF THIS PRIMARY VAPORIZER, A HEAT EXCHANGER WHICH IS COMPOSED OF A SPIRAL TUBE SURROUNDED BY A MANTLE, THIS MANTLE FORMING A SECONDARY VAPORIZING ROOM BETWEEN ITSELF AND THE SPIRAL TUBE, SAID HEAT EXCHANGER BEING ARRANGED ABOVE SAID PRIMARY VAPORIZER, A CENTRAL TUBE WHICH CONNECTS THE UPPER END OF THE PRIMARY VAPORIZER WITH THE UPPER END OF SAID SPIRAL TUBE AND IS SURROUNDED BY THE SPIRAL TUBE, A THROTTLE VALVE BEING ARRANGED WITHIN A PIPE, THIS PIPE CONNECTING THE LOWER END OF SAID SPIRAL TUBE WITH THE UPPER END OF SAID SECONDARY VAPORIZING ROOM, A FURTHER CENTRAL TUBE, WHICH IS CONNECTED TO THE UPPER END OF SAID SECONDARY VAPORIZING ROOM AND IS SURROUNDED BY A FURTHER SPIRAL TUBE THROUGH WHICH COOLING WATER FLOWS, THIS CENTRAL TUBE BEING OPEN AT ITS UPPER END AND BEING ARRANGED WITHIN A MANTLE, THIS MANTLE FORMING A BIDISTILLATION ROOM BETWEEN ITSELF AND THE CENTRAL TUBE, AN OUTLET FOR DRAWING OFF THE BIDISTILLATE, SAID OUTLET BEING ARRANGED AT THE LOWER END OF SAID BIDISTILLATION ROOM, A VACUUM PUMP AND A VESSEL FOR RECEIVING THE BIDISTILLATE, BOTH CON-
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |