US3301239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable valve drive for internal combustion engines
Assignee: Individual
•
Filing: 1964-07-10
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Granted: 1967-01-31
•
Expires: 1984-07-10
Abstract
No abstract record available.
Inventors
- 👤 Thauer Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:29
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/02; F01L1/04; F01L1/08; F01L1/047; F01L1/053; F01L1/0532; F01L1/12; F01L1/14; F01L1/143; F01L1/20; F02; F02B; F02B2275/00; F02B2275/20; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINES, COMPRISING AT LEAST ONE VALVE STEM AND A CAM SHAFT PROVIDED ABOVE THE VALVE STEM, A RAM PROVIDED ON THE STEM END OF THE VALVE HAVING A TOP SURFACE TO BE CONTACTED BY THE CAM SHAFT AND HAVING A THREADED BORE THEREIN EXTENDED THROUGH THE TOP SURFACE, AND A SETTING SCREW IN CONTACT WITH AND IN THE THREADED BORE WHICH UPON ROTATION WILL ADJUST THE PLAY IN THE VALVE STEM, THE CAM SHAFT BEING PROVIDED WITH A BORE WHICH WHEN ALIGNED WITH THE SETTING SCREW PERMITS ADJUSTMENTS OF THE SCREW THROUGH THE BORE IN THE CAM SHAFT.
Claim 2
Dependent Claim
104 words
A VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINES, COMPRISING AT LEAST ONE VALVE STEM AND A CAM SHAFT PROVIDED ABOVE THE VALVE STEM, A RAM PROVIDED ON THE STEM END OF THE VALVE HAVING A TOP SURFACE TO BE CONTACTED BY THE CAM SHAFT AND HAVING A THREADED BORE THEREIN EXTENDED THROUGH THE TOP SURFACE, AND A SETTING SCREW IN CONTACT WITH AND IN THE THREADED BORE WHICH UPON ROTATION WILL ADJUST THE PLAY IN THE VALVE STEM, THE CAM SHAFT BEING PROVIDED WITH A BORE WHICH WHEN ALIGNED WITH THE SETTING SCREW PERMITS ADJUSTMENTS OF THE SCREW THROUGH THE BORE IN THE CAM SHAFT.
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) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |