Patent US3148668A successfully refreshed from Google Patents.
US3148668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine
Assignee: Carlo Bianchi & Co Inc
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Filing: 1963-02-27
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Granted: 1964-09-15
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Expires: 1983-02-27
Abstract
No abstract record available.
Inventors
- 👤 Fermo A Bianchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:12
CPC Classifications
F; F02; F02B; F02B1/00; F02B1/02; F02B1/08; F02B25/00; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025; F02B75/12; F02B2075/125; F02B2700/00; F02B2700/03; F02B2700/034; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE INCLUDING A CYLINDER, A PISTON THEREIN, AND AN EXHAUST PORT, WHICH COMPRISES MAINTAINING ADJACENT TO SAID CYLINDER A SUPPLY OF COMPRESSED FUEL-FREE AIR DISCHARGING A CHARGE OF SAID FUEL-FREE PRE-COMPRESSED AIR INTO SAID CYLINDER AFTER THE PISTON HAS COMPLETED AT LEAST FOUR-FIFTHS OF EACH UP-STROKE, CUTTING OFF COMMUNICATION BETWEEN THE CYLINDER AND THE AIR SUPPLY, AND THEN INJECTING FUEL INTO THE CYLINDER.
Claim 2
Independent Claim
70 words
A METHOD OF OPERATING AN INTERNAL COMBUSTION ENGINE INCLUDING A CYLINDER, A PISTON THEREIN, AND AN EXHAUST PORT, WHICH COMPRISES MAINTAINING ADJACENT TO SAID CYLINDER A SUPPLY OF COMPRESSED FUEL-FREE AIR DISCHARGING A CHARGE OF SAID FUEL-FREE PRE-COMPRESSED AIR INTO SAID CYLINDER AFTER THE PISTON HAS COMPLETED AT LEAST FOUR-FIFTHS OF EACH UP-STROKE, CUTTING OFF COMMUNICATION BETWEEN THE CYLINDER AND THE AIR SUPPLY, AND THEN INJECTING FUEL INTO THE CYLINDER.
References Cited (Backward Citations)
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Cited
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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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |