US2785662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions and methods for removing deposits
Assignee: Individual
•
Filing: 1953-04-06
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Granted: 1957-03-19
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Expires: 1973-04-06
Abstract
No abstract record available.
Inventors
- 👤 Leonard D Boyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:47
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/1811; C10L1/20; C10L1/201; C10L1/22; C10L1/23; C10L1/231
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
THE METHOD OF REMOVING DEPOSITS FROM THE COMBUSTION CHAMBERS OF INTERNAL COMBUSTION ENGINES WHICH COMPRISES HEATING THE ENGINE ABOVE NORMAL; INTRODUCING INTO THE CARBURETOR A COMPOSITION CONTAINING A HYDROCARBON FUEL HAVING A RELATIVELY LOW OCTANE NUMBER AND A SUFFICIENT AMOUNT OF A CETANE IMPROVER FOR DIESEL FUELS TO RENDER THE HYDROCARBON FUEL UNFIT FOR THE NORMAL POWER OPERATION OF AN INTERNAL COMBUSTION SPARK IGNITION ENGINE, STARTING THE ENGINE, PARTIALLY OPENING THE THROTTLE, ACCELERATING THE ENGINE, AND CLOSING THE THROTTLE UPON THE OCCURENCE OF HIGH BRISANCE EXPLOSIONS IN SAID COMBUSTION CHAMBERS, THE ABOVE STEPS BEING PERFORMED WITH THE ENGINE FREE OF LOAD.
Claim 2
Independent Claim
101 words
THE METHOD OF REMOVING DEPOSITS FROM THE COMBUSTION CHAMBERS OF INTERNAL COMBUSTION ENGINES WHICH COMPRISES HEATING THE ENGINE ABOVE NORMAL; INTRODUCING INTO THE CARBURETOR A COMPOSITION CONTAINING A HYDROCARBON FUEL HAVING A RELATIVELY LOW OCTANE NUMBER AND A SUFFICIENT AMOUNT OF A CETANE IMPROVER FOR DIESEL FUELS TO RENDER THE HYDROCARBON FUEL UNFIT FOR THE NORMAL POWER OPERATION OF AN INTERNAL COMBUSTION SPARK IGNITION ENGINE, STARTING THE ENGINE, PARTIALLY OPENING THE THROTTLE, ACCELERATING THE ENGINE, AND CLOSING THE THROTTLE UPON THE OCCURENCE OF HIGH BRISANCE EXPLOSIONS IN SAID COMBUSTION CHAMBERS, THE ABOVE STEPS BEING PERFORMED WITH THE ENGINE FREE OF LOAD.
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) | 1960-03-18 | 1960-09-17 | 1961-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-18 | 1964-09-17 | 1965-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-18 | 1968-09-17 | 1969-03-19 | $7700.00 | Window Closed / Lapsed |