US4225319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adsorbent-treated cat cracked gasoline in motor fuels
Assignee: Phillips Petroleum Co
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Filing: 1978-07-05
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Granted: 1980-09-30
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Expires: 1998-07-05
Abstract
Abstract A method for supressing carburetor deposit formation of motor fuels containing untreated cat cracked gasoline by blending adsorbent-treated cat cracked gasoline into the motor fuel. Up to about 50 percent by weight of the total composition is adsorbent-treated cat cracked gasoline, but preferably from about 5 to about 25 percent by weight of the total composition is adsorbent-treated cat cracked gasoline. In a preferred embodiment a standard reference fuel capable of providing a predetermined level of carburetor deposit formation is provided by the addition of either adsorbent-treated cat cracked gasoline, untreated cat cracked gasoline, or aromatic amines to a base fuel.
Inventors
- 👤 Stephen P. Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06; C10L1/10; C10L1/14; C10L1/16; C10L1/1616; C10L1/22; C10L1/222; C10L1/223; C10L1/232
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
32 words
A method for suppressing carburetor deposit formation using a fuel composition containing untreated cat cracked gasoline in an internal combustion engine, said method comprising blending adsorbent-treated cat cracked gasoline with the composition.
Claim 2
Independent Claim
32 words
A method for suppressing carburetor deposit formation using a fuel composition containing untreated cat cracked gasoline in an internal combustion engine, said method comprising blending adsorbent-treated cat cracked gasoline with the composition.
Claim 3
Dependent Claim
22 words
A method of claim 1 wherein up to about 50 percent by weight of the total composition is adsorbent-treated cat cracked gasoline.
Claim 4
Dependent Claim
23 words
A method of claim 2 wherein about 5 to about 25 percent by weight of the total composition is adsorbent-treated cat cracked gasoline.
Claim 5
Dependent Claim
13 words
A method of claim 2 wherein the total composition also contains alkylate gasoline.
Claim 6
Dependent Claim
28 words
A fuel blend suitable for producing low carburetor deposit formation, said blend comprising untreated cat cracked gasoline and a carburetor deposit reducing amount of adsorbent-treated cat cracked gasoline.
Claim 7
Dependent Claim
28 words
A fuel blend suitable for producing low carburetor deposit formation, said blend comprising untreated cat cracked gasoline and a carburetor deposit reducing amount of adsorbent-treated cat cracked gasoline.
Claim 8
Dependent Claim
23 words
A fuel blend of claim 5 wherein up to about 50 percent by weight of the total composition is adsorbent-treated cat cracked gasoline.
Claim 9
Dependent Claim
24 words
A fuel blend of claim 6 wherein about 5 to about 25 percent by weight of the total composition is adsorbent-treated cat cracked gasoline.
Claim 10
Dependent Claim
14 words
A fuel blend of claim 6 wherein the total composition also contains alkylate gasoline.
Claim 11
Dependent Claim
75 words
A standard reference fuel for evaluating carburetor detergents for fuel and lubricating formulations, said reference fuel comprising a base fuel and additive chosen from (1) adsorbent-treated cat cracked gasoline compositions that reduce the level of carburetor deposit formation and (2) compositions that increase the level of carburetor deposit formation chosen from untreated cat cracked gasoline and primary aromatic amine, said additive present in an amount sufficient to provide a predetermined level of carburetor deposit formation.
Claim 12
Dependent Claim
75 words
A standard reference fuel for evaluating carburetor detergents for fuel and lubricating formulations, said reference fuel comprising a base fuel and additive chosen from (1) adsorbent-treated cat cracked gasoline compositions that reduce the level of carburetor deposit formation and (2) compositions that increase the level of carburetor deposit formation chosen from untreated cat cracked gasoline and primary aromatic amine, said additive present in an amount sufficient to provide a predetermined level of carburetor deposit formation.
Claim 13
Dependent Claim
22 words
A standard reference fuel of claim 9 wherein the additive is chosen from adsorbent-treated cat cracked gasoline and untreated cat cracked gasoline.
Claim 14
Independent Claim
81 words
A method for preparing a standard reference fuel for evaluating carburetor detergents for fuel and lubricating oil formulations, said method comprising blending a base fuel with additive chosen from (1) adsorbent-treated cat cracked gasoline compositions that will decrease the level of carburetor deposit formation and (2) compositions that will increase the level of carburetor deposit formation chosen from untreated cat cracked gasoline and primary aromatic amine, said additive in a sufficient amount to provide a predetermined level of carburetor deposit formation.
Claim 15
Independent Claim
81 words
A method for preparing a standard reference fuel for evaluating carburetor detergents for fuel and lubricating oil formulations, said method comprising blending a base fuel with additive chosen from (1) adsorbent-treated cat cracked gasoline compositions that will decrease the level of carburetor deposit formation and (2) compositions that will increase the level of carburetor deposit formation chosen from untreated cat cracked gasoline and primary aromatic amine, said additive in a sufficient amount to provide a predetermined level of carburetor deposit formation.
Claim 16
Dependent Claim
20 words
A method of claim 11 wherein said additive is chosen from adsorbent-treated cat cracked gasoline and untreated cat cracked gasoline.
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) | 1983-09-30 | 1984-03-31 | 1984-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-30 | 1988-03-31 | 1988-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-30 | 1992-03-31 | 1992-09-30 | $7700.00 | Window Closed / Lapsed |