US4166723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelled hydrocarbon fuels
Assignee: BP Corp North America Inc
•
Filing: 1965-07-30
•
Granted: 1979-09-04
•
Expires: 1985-07-30
Abstract
Abstract Gelled fuel compositions having improved burning characteristics comprise a normally liquid petroleum fuel boiling in the range of about 100°-600° F.; a gelling agent; and about 0.5-20 volume percent acetic anhydride.
Inventors
- 👤 Edward F. Steigelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:39
CPC Classifications
C; C10; C10L; C10L7/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
48 words
A gelled fuel comprising: (a) a major amount of a normally liquid petroleum fraction boiling in the range of about 100°-600° F.; (b) from about 0.5 to about 20 weight percent of a gelling agent; and (c) from about 0.5 to about 20 volume percent of acetic anhydride.
Claim 2
Dependent Claim
48 words
A gelled fuel comprising: (a) a major amount of a normally liquid petroleum fraction boiling in the range of about 100°-600° F.; (b) from about 0.5 to about 20 weight percent of a gelling agent; and (c) from about 0.5 to about 20 volume percent of acetic anhydride.
Claim 3
Dependent Claim
13 words
The fuel of claim 1 wherein said gelling agent is a metal soap.
Claim 4
Dependent Claim
11 words
The fuel of claim 1 wherein said petroleum fraction is gasoline.
Claim 5
Dependent Claim
16 words
The fuel of claim 4 wherein the amount of said anhydride is about 2-6 volume percent.
Claim 6
Dependent Claim
48 words
A gelled fuel comprising: (a) a major amount of a normally liquid petroleum fraction boiling in the range of about 100°-600° F.; (b) from about 0.5 to about 20 weight percent of basic aluminum soap; and (c) from about 0.5 to about 20 volume percent of acetic anhydride.
Claim 7
Dependent Claim
48 words
A gelled fuel comprising: (a) a major amount of a normally liquid petroleum fraction boiling in the range of about 100°-600° F.; (b) from about 0.5 to about 20 weight percent of basic aluminum soap; and (c) from about 0.5 to about 20 volume percent of acetic anhydride.
Claim 8
Dependent Claim
60 words
The fuel of claim 5 wherein said petroleum fraction is gasoline; the amount of said soap is about 5 percent, said soap being a hydroxy aluminum soap of a mixture of fatty acids consisting of about 25 parts naphthenic aicd, 25 parts oleic acid, and about 50 parts coconut acids; and the amount of said anhydride is about 2-6 percent.
Claim 9
Independent Claim
52 words
The method of preparing gelled hydrocarbon fuels having improved burning characteristics which comprises admixing normally liquid hydrocarbon and acetic anhydride to form a liquid hydrocarbon-acetic anhydride mixture containing about 0.5-20 volume percent of said anhydride; and thickening said mixture with an amount of basic aluminum soap sufficient to form a gelled fuel.
Claim 10
Independent Claim
52 words
The method of preparing gelled hydrocarbon fuels having improved burning characteristics which comprises admixing normally liquid hydrocarbon and acetic anhydride to form a liquid hydrocarbon-acetic anhydride mixture containing about 0.5-20 volume percent of said anhydride; and thickening said mixture with an amount of basic aluminum soap sufficient to form a gelled fuel.
Claim 11
Dependent Claim
22 words
The method of claim 7 wherein said hydrocarbon is a normally liquid petroleum fraction boiling in the range of about 100°-600° F.
Claim 12
Dependent Claim
61 words
The method of claim 8 wherein said hydrocarbon is gasoline; said liquid mixture contains about 2-6 percent of said anhydride; and the amount of said soap is about 5 weight percent, said soap being a hydroxy aluminum soap of a mixture of fatty acids consisting of about 25 parts naphthenic acid, 25 parts oleic acid, and about 50 parts coconut acids.
References Cited (Backward Citations)
US2386804A
Cited
US2606107A
Cited
US2570990A
Cited
US2492173A
Cited
US2618536A
Cited
US3047602A
Cited
US2922799A
Cited
US3323883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-03 | 1983-03-05 | 1983-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-03 | 1987-03-05 | 1987-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-03 | 1991-03-05 | 1991-09-04 | $7700.00 | Window Closed / Lapsed |