Patent US3902869A successfully refreshed from Google Patents.
US3902869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel composition with increased octane number
Assignee: Svenska Utvecklings AB
•
Filing: 1973-08-24
•
Granted: 1975-09-02
•
Expires: 1993-08-24
Abstract
Abstract The field of art to which this invention pertains is hydrocarbon based liquid fuel compositions having increased octane number by the use of microemulsion technique. The new composition comprises a main part of a liquid hydrocarbon mixture, water in the form of a microemulsion, an emusifier which makes possible the solubilization of the water in the hydrocarbon mixture and at least one water-soluble inorganic substance which has been dissolved in the water solubilized in the hydrocarbon mixture.
Inventors
- 👤 Stig Erik Friberg
- 👤 Lars Erik Gunnar Lundgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:53
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/328
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A FUEL COMPOSITION COMPRISING A MAJOR PROPORTION OF LIQUID HYDROCARBON MIXTURE, ABOUT 5 - 40% BY WEIGHT OF WATER IN THE FROM OF A MICROEMULSION OF WATER DROPS OF A DIAMETER LESS THAN 1 UM DISPERSED IN THE CONTINUOUS HYDROCARBON PHASE, 1 - 35% BY WEIGHT OF SAID COMPOSITION OF AN EMULSIFIER FOR THE WATER IN THE HYDROCARBON MIXTURE, THE EMULSIFIER CONSISTING OF 2 - 98% BY WEIGHT OF THE EMULSIFIER OF AT LEAST ONE MONOCARBOXYLIC ACID AND 98 - 2% BY WEIGHT OF THE EMULSIFER OF AT LEAST ONE SALT OF SAID AT LEAST ONE MONOCARBOXYLIC ACID, AND 0.1 - 10.0 GRAMS PER LITER OF SAID WATEROF AN INORGANIC COMPOUND DISSOLVED IN SAID WATER THEREBY IMPARTING TO SAID COMPOSITION AN INCREASED OCTANE NUMBER.
Claim 2
Dependent Claim
124 words
A FUEL COMPOSITION COMPRISING A MAJOR PROPORTION OF LIQUID HYDROCARBON MIXTURE, ABOUT 5 - 40% BY WEIGHT OF WATER IN THE FROM OF A MICROEMULSION OF WATER DROPS OF A DIAMETER LESS THAN 1 UM DISPERSED IN THE CONTINUOUS HYDROCARBON PHASE, 1 - 35% BY WEIGHT OF SAID COMPOSITION OF AN EMULSIFIER FOR THE WATER IN THE HYDROCARBON MIXTURE, THE EMULSIFIER CONSISTING OF 2 - 98% BY WEIGHT OF THE EMULSIFIER OF AT LEAST ONE MONOCARBOXYLIC ACID AND 98 - 2% BY WEIGHT OF THE EMULSIFER OF AT LEAST ONE SALT OF SAID AT LEAST ONE MONOCARBOXYLIC ACID, AND 0.1 - 10.0 GRAMS PER LITER OF SAID WATEROF AN INORGANIC COMPOUND DISSOLVED IN SAID WATER THEREBY IMPARTING TO SAID COMPOSITION AN INCREASED OCTANE NUMBER.
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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |