Detergent motor fuel
Abstract
Abstract DETERGENT MOTOR FUEL COMPOSITIONS ARE DISCLOSED AND CLAIMED WHICH ARE PARTICULARLY USEFUL IN SPARK-IGNITION, INTERNAL COMBUSTION ENGINES. THE DETERGENT COMPOSITIONS OF THE PRESENT INVENTION CONTAIN CERTAIN ADDITIVES WHICH EITHER SUBSTANTIALLY ELIMINATE OR MAINTAIN AT A LOW LEVEL DEPOSITS WHICH WOULD OTHERWISE FORM IN THE CARBURETOR AND IN THE INTAKE VALVES AND PORTS. SUCH CARBURETOR AND INTAKE SYSTEM DEPOSITS ARE TO BE AVOIDED SINCE THEY TEND TO RESTRICT THE FLOW OF AIR THROUGH THE CARBURETOR ESPECIALLY AT IDLE AND AT LOW SPEEDS AND/OR CAUSE IMPROPER VALVE CLOSING AND SLUGGISH VALVE ACTION. THESE CONDITIONS PRODUCE ROUGH ENGINE IDLING STALLING AND CAN ALSO RESULT IN EXCESSIVE HYDROCARBON AND CARBON MONOXIDE EXHAUST EMISSIONS. A SUITABLE DETERGENT COMPOSITION COMPRISES THE COMBINATION OF (1) A TERTIARY ALKYL BRANCHED CHAIN PRIMARY AMINE HAVING A TOTAL OF ABOUT 6 TO 24 CARBON ATOMS, (2) A SURFACE ACTIVE AMMONIUM CARBOXYLATE SALT-ETHOXYLATED ALKYL PHENOL ESTER OF A TRIMER OR DIMER HYDROCARBON ACID, AND (3) A HYDROCARBON-SOLUBLE POLYBUTENE HAVING A NUMBER AVERAGE MOLECULAR WEIGHT OF ABOUT 700 TO 3000.
Inventors
- 👤 W Machleder
- 👤 R Kuhn
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |