Patent US3099983A successfully refreshed from Google Patents.
US3099983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooled internal combustion engine
Assignee: Alfa Romeo SpA
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Filing: 1961-03-20
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Granted: 1963-08-06
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Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Orlando Luigi Enrico
- 👤 Corradi Camillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:24
CPC Classifications
F; F01; F01P; F01P5/00; F01P5/02; F01P5/06; F02; F02F; F02F1/00; F02F1/02; F02F1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
INTERNAL COMBUSTION ENGINE HAVING AT LEAST ONE CYLINDER AND HAVING SUCTION AND EXHAUST VALVES AND HAVING ROCKING LEVERS TO OPERATE SUCH VALVES AND HAVING AIR COOLING, IN WHICH THE COOLING AIR UNDER FAN PRESSURE IS BLOWN PARALLEL TO THE AXIS OF THE CYLINDER FROM THE HEAD DOWNWARD, WHILE THE AXES OF THE SUCTION AND EXHAUST VALVES, THE ROCKING LEVERS CONTROLLING SAID VALVES AND THE AXES OF THE SUCTION AND EXHAUST VALVES LIE SUBSTANTIALLY ABOVE SAID CYLINDER IN A COMMON PLANE PARALLEL TO THE AXIS OF THE CYLINDER, CHARACTERIZED BY A CYLINDER HEAD INCLUDING A RELATIVELY THIN PORTION CLOSING THE CYLINDER, A GENERALLY RING-SHAPED PORTION OF A DIAMETER SUBSTANTIALLY THE SAME AS THE DIAMETER OF THE CYLINDER AND SURROUNDING SAID VALVE AXES AND LYING PARALLEL TO AND AT A DISTANCE FROM SAID RELATIVELY THIN PORTION, A PLURALITY OF CIRCUMFERENTIALLY SPACED RADIALLY EXTENDING FINS EXTENDING FROM SAID THIN PORTION TO SAID RING-SHAPED PORTION CONNECTING SAID RINGSHAPED PORTION AND SAID THIN PORTION TOGETHER AND TO PRO-
Claim 2
Dependent Claim
163 words
INTERNAL COMBUSTION ENGINE HAVING AT LEAST ONE CYLINDER AND HAVING SUCTION AND EXHAUST VALVES AND HAVING ROCKING LEVERS TO OPERATE SUCH VALVES AND HAVING AIR COOLING, IN WHICH THE COOLING AIR UNDER FAN PRESSURE IS BLOWN PARALLEL TO THE AXIS OF THE CYLINDER FROM THE HEAD DOWNWARD, WHILE THE AXES OF THE SUCTION AND EXHAUST VALVES, THE ROCKING LEVERS CONTROLLING SAID VALVES AND THE AXES OF THE SUCTION AND EXHAUST VALVES LIE SUBSTANTIALLY ABOVE SAID CYLINDER IN A COMMON PLANE PARALLEL TO THE AXIS OF THE CYLINDER, CHARACTERIZED BY A CYLINDER HEAD INCLUDING A RELATIVELY THIN PORTION CLOSING THE CYLINDER, A GENERALLY RING-SHAPED PORTION OF A DIAMETER SUBSTANTIALLY THE SAME AS THE DIAMETER OF THE CYLINDER AND SURROUNDING SAID VALVE AXES AND LYING PARALLEL TO AND AT A DISTANCE FROM SAID RELATIVELY THIN PORTION, A PLURALITY OF CIRCUMFERENTIALLY SPACED RADIALLY EXTENDING FINS EXTENDING FROM SAID THIN PORTION TO SAID RING-SHAPED PORTION CONNECTING SAID RINGSHAPED PORTION AND SAID THIN PORTION TOGETHER AND TO PRO-
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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |