US2580923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of corrosion in steam generation
Assignee: ChampionX LLC
•
Filing: 1947-06-19
•
Granted: 1952-01-01
•
Expires: 1967-06-19
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Jacoby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:19
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/149; C23F11/02; C23F11/16; C23F11/163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A SYSTEM WHEREIN STEAM IS GENERAGED FROM A BOILER WATER CONTAINING AN ALKALI AND CONDENSED, THE PROCESS WHICH COMPRISES INTRODUCING INTO SAID BOILER WATER CONTAINING AN ALKALI A QUANTITY OF A SUBSTANTIALLY NON-HYGROSCOPIC WATER SOLUBLE SALT OF A MONO-AMINE MISCIBLE WITH WATER IN ALL PROPORTIONS AND VOLATILE WITH STEAM AT THE BOILER TEMPERATURES AND PRESSURES, THE QUANTITY OF ALKALI IN SAID BOILER WATER BEING IN EXCESS OF THE AMOUNT REQUIRED TO HYDROLYZE SAID AMINE SALT TO THE FREE AMINE, AND THE QUANTITY OF AMINE SALT BEING EFFECTIVE TO LIBERATE A CORROSION INHIBITING QUANTITY OF SAID VOLATILE AMINE IN SUFFICIENT AMOUNT TO PRODUCE A PH IN THE STEAM CONDENSATE OF AT LEAST 6.3.
Claim 2
Dependent Claim
113 words
IN A SYSTEM WHEREIN STEAM IS GENERAGED FROM A BOILER WATER CONTAINING AN ALKALI AND CONDENSED, THE PROCESS WHICH COMPRISES INTRODUCING INTO SAID BOILER WATER CONTAINING AN ALKALI A QUANTITY OF A SUBSTANTIALLY NON-HYGROSCOPIC WATER SOLUBLE SALT OF A MONO-AMINE MISCIBLE WITH WATER IN ALL PROPORTIONS AND VOLATILE WITH STEAM AT THE BOILER TEMPERATURES AND PRESSURES, THE QUANTITY OF ALKALI IN SAID BOILER WATER BEING IN EXCESS OF THE AMOUNT REQUIRED TO HYDROLYZE SAID AMINE SALT TO THE FREE AMINE, AND THE QUANTITY OF AMINE SALT BEING EFFECTIVE TO LIBERATE A CORROSION INHIBITING QUANTITY OF SAID VOLATILE AMINE IN SUFFICIENT AMOUNT TO PRODUCE A PH IN THE STEAM CONDENSATE OF AT LEAST 6.3.
References Cited (Backward Citations)
US1903287A
Cited
US2053024A
Cited
US2220950A
Cited
US2200184A
Cited
US2274807A
Cited
US2419327A
Cited
US2460259A
Cited
US2432839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |