Patent US3299871A successfully refreshed from Google Patents.
US3299871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve control for internal combustion engines
Assignee: Bayerische Motoren Werke AG
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Filing: 1966-04-01
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Granted: 1967-01-24
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Expires: 1986-04-01
Abstract
No abstract record available.
Inventors
- 👤 Apfelbeck Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:43
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/26; F01L1/262; F02; F02B; F02B2275/00; F02B2275/18; F02F; F02F1/00; F02F1/24; F02F1/42; F02F1/4214; F02F2001/244; F02F2001/245; F02F2001/246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A VALVE CONTROL FOR INTERNAL COMBUSTION ENGINES HAVING AT LEAST ONE CYLINDER ROW, WHICH INCLUDE PER CYLINDER FOUR OVERHEAD VALVES RADIALLY ARRANGED IN V-FORMATION WITH TWO INLET AND EXHAUST VALVES EACH DISPOSED MUTUALLY OPPOSITE ONE ANOTHER, COMPRISING FOUR VALVE MEANS PER CYLINDER EACH INCLUDING STEM MEANS, THE PLANES DETERMINED BY THE AXES OF OPPOSITELY DISPOSED VALVE MEANS BEING ROTATED WITH RESPECT TO THE LONGITUDINAL CENTER PLANE BY A PREDETERMINED ANGLE, SEPARATE CAM SHAFT MEANS FOR THE VALVE MEANS DISPOSED ON RESPECTIVE SIDES OF THE LONGITUDINAL CENTER PLANE, ROCKER ARM MEANS ABUTTING AGAINST RESPECTIVE CAM SHAFT AND VALVE MEANS FOR ACTUATING THE VALVE MEANS FROM THE CORRESPONDING CAM SHAFT MEANS, THE CAM SHAFT MEANS BEING ARRANGED WITHIN THE ANGULAR
Claim 2
Dependent Claim
118 words
A VALVE CONTROL FOR INTERNAL COMBUSTION ENGINES HAVING AT LEAST ONE CYLINDER ROW, WHICH INCLUDE PER CYLINDER FOUR OVERHEAD VALVES RADIALLY ARRANGED IN V-FORMATION WITH TWO INLET AND EXHAUST VALVES EACH DISPOSED MUTUALLY OPPOSITE ONE ANOTHER, COMPRISING FOUR VALVE MEANS PER CYLINDER EACH INCLUDING STEM MEANS, THE PLANES DETERMINED BY THE AXES OF OPPOSITELY DISPOSED VALVE MEANS BEING ROTATED WITH RESPECT TO THE LONGITUDINAL CENTER PLANE BY A PREDETERMINED ANGLE, SEPARATE CAM SHAFT MEANS FOR THE VALVE MEANS DISPOSED ON RESPECTIVE SIDES OF THE LONGITUDINAL CENTER PLANE, ROCKER ARM MEANS ABUTTING AGAINST RESPECTIVE CAM SHAFT AND VALVE MEANS FOR ACTUATING THE VALVE MEANS FROM THE CORRESPONDING CAM SHAFT MEANS, THE CAM SHAFT MEANS BEING ARRANGED WITHIN THE ANGULAR
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |