Patent US3360442A successfully refreshed from Google Patents.
US3360442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-stage flash evaporator
Assignee: Applied Research and Engineering Ltd
•
Filing: 1964-12-23
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Granted: 1967-12-26
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Expires: 1984-12-23
Abstract
No abstract record available.
Inventors
- 👤 Starmer Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:59
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/06; B01D3/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A MULTI-STAGE FLASH EVAPORATOR IN WHICH THERE IS A SUCCESSION OF FLASH CHAMBERS INTERCONNECTED BY ORIFICES, MEANS FOR SUPPLYING HEATED LIQUID FOR DISTILLATION TO THE FIRST CHAMBER IN THE SUCCESSION, MEANS COMPRISING A CONDENSER TUBE ARRANGED IN THE UPPER SECTION OF SAID CHAMBERS AND THROUGH WHICH SAID LIQUID FLOWS FOR CONDENSING VAPOURS PRODUCED IN THE SUCCESSIVE CHAMBERS AND FOR MAINTAINING THE CHAMBERS IN THE SUCCESSION AT SUCCESSIVELY DECREASING VAPOUR PRESSURE WITH THE VAPOUR PRESSURE DIFFERENCES BETWEEN CHAMBERS AT THE BEGINNING OF THE SUCCESSION LARGER THAN THE VAPOUR PRESSURE DIFFERENCE BETWEEN CHAMBERS LATER IN THE SUCCESSION, AND IN WHICH SAID SUCCESSION OF CHAMBERS COMPRISE A FIRST GROUP AND A SECOND
Claim 2
Dependent Claim
109 words
A MULTI-STAGE FLASH EVAPORATOR IN WHICH THERE IS A SUCCESSION OF FLASH CHAMBERS INTERCONNECTED BY ORIFICES, MEANS FOR SUPPLYING HEATED LIQUID FOR DISTILLATION TO THE FIRST CHAMBER IN THE SUCCESSION, MEANS COMPRISING A CONDENSER TUBE ARRANGED IN THE UPPER SECTION OF SAID CHAMBERS AND THROUGH WHICH SAID LIQUID FLOWS FOR CONDENSING VAPOURS PRODUCED IN THE SUCCESSIVE CHAMBERS AND FOR MAINTAINING THE CHAMBERS IN THE SUCCESSION AT SUCCESSIVELY DECREASING VAPOUR PRESSURE WITH THE VAPOUR PRESSURE DIFFERENCES BETWEEN CHAMBERS AT THE BEGINNING OF THE SUCCESSION LARGER THAN THE VAPOUR PRESSURE DIFFERENCE BETWEEN CHAMBERS LATER IN THE SUCCESSION, AND IN WHICH SAID SUCCESSION OF CHAMBERS COMPRISE A FIRST GROUP AND A SECOND
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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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |