US3353523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Four-stroke twin combustion engine
Assignee: KOLOMENSKY TEPLOVOZOSTROITELNY ZAVOD IMENI VV
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Filing: 1966-12-30
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Granted: 1967-11-21
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Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 Meden Alexandr Ivanovich
- 👤 Surov Viktor Petrovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:45
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/26; F02; F02B; F02B2275/00; F02B2275/34; F02B3/00; F02B3/06; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02F2001/244; F02F2001/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A FOUR-STROKE TWIN COMBUSTION ENGINE COMPRISING: TWO ROWS OF CYLINDERS WITH HEADS; A CAMSHAFT LOCATED BETWEEN SAID ROWS OF CYLINDERS, INTAKE AND EXHAUST VALVES LOCATED IN SAID CYLINDER HEADS; LEVERS INTERACTING WITH SAID VALVES; INCLINED RODS HAVING HINGED CONNECTION WITH SAID LEVERS, SAID LEVERS BEING ARRANGED IN A PLANE PERPENDICULAR TO THE AXIS OF THE CAMSHAFT; TAPPETS HINGE-CONNECTED TO SAID RODS; A FIRST SET OF CAMS MOUNTED ON THE CAMSHAFT EACH OPERATING THE INTAKE VALVES OF RESPECTIVE OPPOSED CYLINDERS VIA CORRESPONDING TAPPETS, INCLINED RODS AND LEVERS; AND A SECOND SET OF CAMS MOUNTED ON THE CAMSHAFT EACH OPERATING THE EXHAUST VALVES OF RESPECTIVE OPPOSED CYLINDERS VIA CORRESPONDING TAPPETS, INCLINED RODS AND LEVERS.
Claim 2
Dependent Claim
112 words
A FOUR-STROKE TWIN COMBUSTION ENGINE COMPRISING: TWO ROWS OF CYLINDERS WITH HEADS; A CAMSHAFT LOCATED BETWEEN SAID ROWS OF CYLINDERS, INTAKE AND EXHAUST VALVES LOCATED IN SAID CYLINDER HEADS; LEVERS INTERACTING WITH SAID VALVES; INCLINED RODS HAVING HINGED CONNECTION WITH SAID LEVERS, SAID LEVERS BEING ARRANGED IN A PLANE PERPENDICULAR TO THE AXIS OF THE CAMSHAFT; TAPPETS HINGE-CONNECTED TO SAID RODS; A FIRST SET OF CAMS MOUNTED ON THE CAMSHAFT EACH OPERATING THE INTAKE VALVES OF RESPECTIVE OPPOSED CYLINDERS VIA CORRESPONDING TAPPETS, INCLINED RODS AND LEVERS; AND A SECOND SET OF CAMS MOUNTED ON THE CAMSHAFT EACH OPERATING THE EXHAUST VALVES OF RESPECTIVE OPPOSED CYLINDERS VIA CORRESPONDING TAPPETS, INCLINED RODS AND LEVERS.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |