US3150713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for controlling the end value of the specific gravity of a liquid in plants wherein the liquid is heated by the admixture of steam
Assignee: Alpura AG
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Filing: 1962-12-31
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Granted: 1964-09-29
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Expires: 1982-12-31
Abstract
No abstract record available.
Inventors
- 👤 Loliger Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:49
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/40; A23B2/42; A23B2/46; A23B11/00; A23B11/10; A23B11/12; A23B11/13; A23B11/133; A23B11/137
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A METHOD OF CONTROLLING THE SPECIFIC GRAVITY OF A LIQUID HEATED BY ADMIXTURE OF STEM AND THEREAFTER COOLED BY EXPANSION AND PARTIAL EVAPORATION, RELATIVE TO THE SPECIFIC GRAVITY OF THE LIQUID PRIOR TO HEATING BY ADMIXTURE OF STEAM, COMPRISING: SENSING THE TEMPERATURE OF THE LIQUID PRIOR TO HEATING BY THE ADMIXTURE OF STEAM, SENSING THE TEMPERATURE OF THE LIQUID AFTER EXPANSION AND PARTIAL EVAPORATION, CONTROLLING ONE OF SAID TEMPERATURES FOR MAINTAINING A PREDETERMINED DIFFERENCE BETWEEN THE TEMPERATURE OF THE LIQUID BEFORE HEATING BY THE ADMIXTURE OF STEAM AND THE TEMPERATURE OF THE LIQUID AFTER EXPANSION AND PARTIAL EVAPORATION, AND
Claim 2
Independent Claim
99 words
A METHOD OF CONTROLLING THE SPECIFIC GRAVITY OF A LIQUID HEATED BY ADMIXTURE OF STEM AND THEREAFTER COOLED BY EXPANSION AND PARTIAL EVAPORATION, RELATIVE TO THE SPECIFIC GRAVITY OF THE LIQUID PRIOR TO HEATING BY ADMIXTURE OF STEAM, COMPRISING: SENSING THE TEMPERATURE OF THE LIQUID PRIOR TO HEATING BY THE ADMIXTURE OF STEAM, SENSING THE TEMPERATURE OF THE LIQUID AFTER EXPANSION AND PARTIAL EVAPORATION, CONTROLLING ONE OF SAID TEMPERATURES FOR MAINTAINING A PREDETERMINED DIFFERENCE BETWEEN THE TEMPERATURE OF THE LIQUID BEFORE HEATING BY THE ADMIXTURE OF STEAM AND THE TEMPERATURE OF THE LIQUID AFTER EXPANSION AND PARTIAL EVAPORATION, AND
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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |