US2968148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vanadium-containing residual fuels modified with zinc and alkali metal compounds
Assignee: Gulf Research and Development Co
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Filing: 1958-04-16
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Granted: 1961-01-17
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Expires: 1978-04-16
Abstract
No abstract record available.
Inventors
- 👤 Albert G Rocchini
- 👤 Charles E Trautman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:45
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/12; C10L1/14; C10L1/18; C10L1/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
125 words
IN A GAS TURBINE PLANT IN WHICH A FUEL OIL CONTAINING VANADIUM IS BURNED AND WHICH INCLUDES HEAT RESISTING METALLIC PARTS EXPOSED TO HOT COMBUSTION GASES AND LIABLE TO BE CORRODED BY THE CORROSIVE VANDIUM-CONTAINING ASH RESULTING FROM COMBUSTION OF SAID OIL, THE METHOD OF REDUCING SAID CORROSION WHICH COMPRISES INTRODUCING IN SAID PLANT UPSTREAM OF SAID PARTS A SMALL AMOUNT OF A VANADIUM-FREE MIXTURE OF A ZINC COMPOUND AND AN ALKALI METAL COMPOUND, THE AMOUNT OF SAID ZINC COMPOUND BEING SUFFICIENT TO YIELD ABOUT 4 ATOM WEIGHTS OF ZINC PER ATOM WEIGHT OF VANADIUM IN SAID FUEL, AND THE AMOUNG OF SAID ALKALI METAL COMPOUND BEING SUFFICIENT TO YIELD ABOUT 1 ATOM WEIGHT OF ALKALI METAL PER ATOM WEIGHT OF VANADIUM IN SAID FUEL.
References Cited (Backward Citations)
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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) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |