Patent US4332594A successfully refreshed from Google Patents.
US4332594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuels for internal combustion engines
Assignee: Old Carco LLC
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Filing: 1981-04-13
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Granted: 1982-06-01
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Expires: 2001-04-13
Abstract
Abstract An oxygenated hydrocarbon based fuel for use in internal combustion engines is composed by volume of alcohol (40-80%), ketone (0-30%) ether (15-40%), a dimethyl siloxane (0.01-1.0%) a surfactant (0.25-1.0%) and a fuel-soluble corrosion inhibitor (0.02-0.1%). The resulting fuel has excellent storage life and performance characteristics superior to gasoline.
Inventors
- 👤 David M. Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:28
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/02; C10L1/10; C10L1/14; C10L1/146; C10L1/18; C10L1/192; C10L1/198; C10L1/1985; C10L1/28; C10L1/285
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
34 words
An oxygenated hydrocarbon based fuel comprising a primary aliphatic alcohol, an ether of the formula ROR wherein R is an alkyl group containing up to about 8 carbon atoms, and a liquid silicone polymer.
Claim 2
Dependent Claim
34 words
An oxygenated hydrocarbon based fuel comprising a primary aliphatic alcohol, an ether of the formula ROR wherein R is an alkyl group containing up to about 8 carbon atoms, and a liquid silicone polymer.
Claim 3
Dependent Claim
21 words
An oxygenated hydrocarbon based fuel according to claim 1 comprising 40 to 80% alcohol and 15 to 40% ether by volume.
Claim 4
Dependent Claim
17 words
An oxygenated hydrocarbon based fuel according to claim 1 wherein said liquid silicone polymer is dimethyl siloxane.
Claim 5
Dependent Claim
24 words
An oxygenated hydrocarbon based fuel according to claim 3 wherein the concentration range of said liquid silicone polymer is 0.01 to 1.0% by volume.
Claim 6
Dependent Claim
23 words
An oxygenated hydrocarbon based fuel according to claim 4 further comprising a surfactant in a concentration range of 0.025 to 1.0% by volume.
Claim 7
Dependent Claim
26 words
An oxygenated hydrocarbon based fuel according to claim 1 further comprising a surfactant which is a condensation product of phenols and ethylene oxide or propylene oxide.
Claim 8
Dependent Claim
23 words
An oxygenated hydrocarbon based fuel according to claim 6 wherein said surfactant is a condensate of C 5-15 alkyl phenol and ethylene oxide.
Claim 9
Dependent Claim
28 words
An oxygenated hydrocarbon based fuel according to claims 1 or 5 further comprising a fuel-soluble corrosion inhibitor in a concentration range of about 0.02 to 0.1% by volume.
Claim 10
Dependent Claim
17 words
An oxygenated hydrocarbon based fuel according to claim 8 wherein said corrosion inhibitor is an oxylated hydrocarbon.
Claim 11
Dependent Claim
35 words
An oxygenated hydrocarbon based fuel according to claim 1 wherein said alcohol component is a blend of butyl- and ethyl alcohols and wherein said ether is selected from the group consisting of diethyl-and diamyl ethers.
Claim 12
Dependent Claim
83 words
An oxygenated hydrocarbon based fuel comprising about 40 to 80% by volume of a primary aliphatic alcohol having up to 8 carbon atoms, from about 15 to 40% by volume of an ether of the formula ROR wherein R is an alkyl group containing up to about 8 carbon atoms, from about 0.01 to 1.0% by volume of a liquid silicone polymer, from about 0.025% to 1.0% by volume of a surfactant and from about 0.02 to 0.1% of a fuel-soluble corrosion inhibitor.
Claim 13
Dependent Claim
83 words
An oxygenated hydrocarbon based fuel comprising about 40 to 80% by volume of a primary aliphatic alcohol having up to 8 carbon atoms, from about 15 to 40% by volume of an ether of the formula ROR wherein R is an alkyl group containing up to about 8 carbon atoms, from about 0.01 to 1.0% by volume of a liquid silicone polymer, from about 0.025% to 1.0% by volume of a surfactant and from about 0.02 to 0.1% of a fuel-soluble corrosion inhibitor.
References Cited (Backward Citations)
US1495094A
Cited
US1501383A
Cited
US3233986A
Cited
US3527581A
Cited
US3764282A
Cited
US4272254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-31 | 1985-11-30 | 1986-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-31 | 1989-11-30 | 1990-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-31 | 1993-11-30 | 1994-06-01 | $7700.00 | Window Closed / Lapsed |