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Patent US4166723A successfully refreshed from Google Patents.
US4166723A
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Gelled hydrocarbon fuels
Assignee: BP Corp North America Inc
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Filing: 1965-07-30
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Granted: 1979-09-04
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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 20:43
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.
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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) | 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 |