US3032971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures of acyclic polyhydroxy alcohols and glycol ethers as anti-icing additives for hydrocarbon fuels
Assignee: Phillips Petroleum Co
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Filing: 1961-10-20
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Granted: 1962-05-08
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Expires: 1981-10-20
Abstract
No abstract record available.
Inventors
- 👤 James A Shotton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:33
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/185; C10L1/1852; C10L1/192; C10L1/198; C10L1/1985
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
90 words
AN ANTI-ICING ADDITIVE, SUITABLE FOR USE IN A LIQUID HYDROCARBON FUEL, COMPRISING A BLEND OF FROM 0.5 TO ABOUT 50 WEIGHT PERCENT OF GLYCOL ETHER FROM 99.5 TO ABOUT 50 WEIGHT PERCENT OF A GLYCOL ETHER HAVING THE FORMULA R (OCH2CH2)XOH WHEREIN: R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROGEN ATOM, METHYL, ETHYL, PROPYL, BUTYL, PHENYL, AND TOLYL GROUPS; WHEN R IS HYDROGEN, X IS AN INTEGER OF FROM 2 TO 4; AND WHEN R IS OTHER THAN HYDROGEN, X IS AN INTEGER OF FROM 1 TO 4.
Claim 2
Dependent Claim
90 words
AN ANTI-ICING ADDITIVE, SUITABLE FOR USE IN A LIQUID HYDROCARBON FUEL, COMPRISING A BLEND OF FROM 0.5 TO ABOUT 50 WEIGHT PERCENT OF GLYCOL ETHER FROM 99.5 TO ABOUT 50 WEIGHT PERCENT OF A GLYCOL ETHER HAVING THE FORMULA R (OCH2CH2)XOH WHEREIN: R IS SELECTED FROM THE GROUP CONSISTING OF A HYDROGEN ATOM, METHYL, ETHYL, PROPYL, BUTYL, PHENYL, AND TOLYL GROUPS; WHEN R IS HYDROGEN, X IS AN INTEGER OF FROM 2 TO 4; AND WHEN R IS OTHER THAN HYDROGEN, X IS AN INTEGER OF FROM 1 TO 4.
Claim 3
Dependent Claim
99 words
IN THE MEHTOD OF OPERATING AJET ENGINE WHICH ENCOUNTERS SUBFREEZING TEMPERATURES, SAID ENGINE BEING EQUIPPED WITH A FUEL SUPPLY SYSTEM WHICH IS SUBJECT TO BECOMING PLUGGED BY ICE FORMATION AT SAID SUBFREEZING TEMPERATURES DUE TO THE PRESENCE OF WATER IN THE FUEL, THE STEP OF PASSING THROUGH SAID FUEL SUPPLY SYSTEM TO A COMBUSTION ZONE OF SAID ENGINE A LIQUID HYDROCARBON FUEL CONTAINING FROM 0.01 TO 1 VOLUME PERCENT OF AN ANTI-ICING ADDITIVE COMPRISING A BLEND OF FROM 1 TO ABOUT 10 WEIGHT PERCENT OF GLYCEROL AND FROM 99 TO ABOUT 90 WEIGHT PERCENT OF ETHYLENE GLYCOL MONOMETHYL ETHER.
Claim 4
Dependent Claim
99 words
IN THE MEHTOD OF OPERATING AJET ENGINE WHICH ENCOUNTERS SUBFREEZING TEMPERATURES, SAID ENGINE BEING EQUIPPED WITH A FUEL SUPPLY SYSTEM WHICH IS SUBJECT TO BECOMING PLUGGED BY ICE FORMATION AT SAID SUBFREEZING TEMPERATURES DUE TO THE PRESENCE OF WATER IN THE FUEL, THE STEP OF PASSING THROUGH SAID FUEL SUPPLY SYSTEM TO A COMBUSTION ZONE OF SAID ENGINE A LIQUID HYDROCARBON FUEL CONTAINING FROM 0.01 TO 1 VOLUME PERCENT OF AN ANTI-ICING ADDITIVE COMPRISING A BLEND OF FROM 1 TO ABOUT 10 WEIGHT PERCENT OF GLYCEROL AND FROM 99 TO ABOUT 90 WEIGHT PERCENT OF ETHYLENE GLYCOL MONOMETHYL ETHER.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |