Patent US4274835A successfully refreshed from Google Patents.
US4274835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for modifying burning of sulfur in coals and hydrocarbon fuels
Assignee: Air Quality Products Inc
•
Filing: 1979-11-05
•
Granted: 1981-06-23
•
Expires: 1999-11-05
Abstract
Abstract Efficiency of internal combustion engine performance, i.e. improved mileage per gallon, and improved performance, e.g. lower exhaust temperature, is increased by the addition of carotenoids, beta-carotene in particular, to diesel fuel before use, and the combustion of coal is improved, i.e. higher BTU/lb results, sulfur in emission from such coal combustion is reduced, and sulfur in ash is increased, by the addition of squalene, squalane, carotenoids, beta-carotene in particular, hemoglobin and chlorophyll to the coal before burning.
Inventors
- 👤 Frederick L. Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:20
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; C10L1/00; C10L1/10; C10L1/14; C10L1/16; C10L1/1608; C10L1/30; C10L9/00; C10L9/10; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
33 words
The method of improving combustion efficiency and reducing sulfur combustion emissions from burning of coal comprising burning coal in the presence of small amounts of squalane, squalene, or a carotenoid, or mixtures thereof.
Claim 2
Independent Claim
33 words
The method of improving combustion efficiency and reducing sulfur combustion emissions from burning of coal comprising burning coal in the presence of small amounts of squalane, squalene, or a carotenoid, or mixtures thereof.
Claim 3
Dependent Claim
22 words
The composition comprising coal intermixed with small amounts, in the parts per million range, of squalane, squalene or carotene, or mixtures thereof.
Claim 4
Dependent Claim
22 words
The composition comprising coal intermixed with small amounts, in the parts per million range, of squalane, squalene or carotene, or mixtures thereof.
Claim 5
Dependent Claim
17 words
A liquid hydrocarbon fuel having intermixed therein small amounts, in the parts per million range, of carotene.
Claim 6
Dependent Claim
17 words
A liquid hydrocarbon fuel having intermixed therein small amounts, in the parts per million range, of carotene.
Claim 7
Dependent Claim
23 words
A solid carbonaceous fuel comprising an intermixture of coal and small amounts, in the parts per million range, of squalene, squalane or carotene.
Claim 8
Dependent Claim
23 words
A solid carbonaceous fuel comprising an intermixture of coal and small amounts, in the parts per million range, of squalene, squalane or carotene.
Claim 9
Independent Claim
37 words
The method of improving the efficiency of a diesel operated internal combustion engine comprising intermixing with diesel fuel small amounts, in the parts per million range, of a carotenoid and operating the engine on the resulting fuel.
Claim 10
Independent Claim
37 words
The method of improving the efficiency of a diesel operated internal combustion engine comprising intermixing with diesel fuel small amounts, in the parts per million range, of a carotenoid and operating the engine on the resulting fuel.
Claim 11
Independent Claim
46 words
The method of improving energy output and reducing the sulfur in gaseous combustion gases resulting from coal burning comprising adding to such coal before burning an effective amount of up to 5,000 parts per million of squalane, squalene, or a carotenoid, or mixtures of the same.
Claim 12
Independent Claim
46 words
The method of improving energy output and reducing the sulfur in gaseous combustion gases resulting from coal burning comprising adding to such coal before burning an effective amount of up to 5,000 parts per million of squalane, squalene, or a carotenoid, or mixtures of the same.
Claim 13
Independent Claim
29 words
The method of concentrating sulfur in coal ash during combustion of coal comprising burning such coal in the presence of squalane, squalene or carotenoid or mixtures of the same.
Claim 14
Independent Claim
29 words
The method of concentrating sulfur in coal ash during combustion of coal comprising burning such coal in the presence of squalane, squalene or carotenoid or mixtures of the same.
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) | 1984-06-22 | 1984-12-22 | 1985-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-22 | 1988-12-22 | 1989-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-22 | 1992-12-22 | 1993-06-23 | $7700.00 | Window Closed / Lapsed |