Patent US3289658A successfully refreshed from Google Patents.
US3289658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve arrangement for internal combustion engines
Assignee: Individual
•
Filing: 1965-10-20
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Granted: 1966-12-06
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Sr Thomas A Surovek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:30
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN AN INTERNAL COMBUSTION ENGINE, VALVE MEANS FOR CONTROLLING THE INTAKE AND EXHAUST OF GASEOUS MIXTURES FROM THE INTAKE AND EXHAUST PORTS IN THE CYLINDERS OF THE ENGINE, SAID MEANS INCLUDING VALVE BODIES ASSOCIATED WITH EACH PORT, EACH OF SAID VALVE BODIES HAVING A VALVE HEAD AT ONE END ADAPTED TO BE SEATED IN THE PORT TO CLOSE SAID PORT TO THE PASSAGE OF THE GASEOUS MIXTURE AGAINST THE CYLINDER COMPRESSION, AND A CAM FOLLOWER ROTATABLY MOUNTED ON THE OTHER END, A CAM, ENGAGEABLE WITH SAID FOLLOWER, SAID CAM HAVING A BASE CIRCLE SURFACE AND AN INDENTED SURFACE SAID FOLLOWER HAVING A PLURALITY OF RADIALLY EXTENDING LOBES WHICH ARE SEQUENTIALLY ENGAGED IN THE INDENTED SURFACE OF THE CAM, SAID LOBES BEING SEPARATED BY CONCAVE CIRCULAR SURFACES WHICH MATE AND SLIDE AGAINST THE CAM BASE CIRCLE SURFACE BETWEEN LOBE ENGAGEMENTS.
Claim 2
Dependent Claim
139 words
IN AN INTERNAL COMBUSTION ENGINE, VALVE MEANS FOR CONTROLLING THE INTAKE AND EXHAUST OF GASEOUS MIXTURES FROM THE INTAKE AND EXHAUST PORTS IN THE CYLINDERS OF THE ENGINE, SAID MEANS INCLUDING VALVE BODIES ASSOCIATED WITH EACH PORT, EACH OF SAID VALVE BODIES HAVING A VALVE HEAD AT ONE END ADAPTED TO BE SEATED IN THE PORT TO CLOSE SAID PORT TO THE PASSAGE OF THE GASEOUS MIXTURE AGAINST THE CYLINDER COMPRESSION, AND A CAM FOLLOWER ROTATABLY MOUNTED ON THE OTHER END, A CAM, ENGAGEABLE WITH SAID FOLLOWER, SAID CAM HAVING A BASE CIRCLE SURFACE AND AN INDENTED SURFACE SAID FOLLOWER HAVING A PLURALITY OF RADIALLY EXTENDING LOBES WHICH ARE SEQUENTIALLY ENGAGED IN THE INDENTED SURFACE OF THE CAM, SAID LOBES BEING SEPARATED BY CONCAVE CIRCULAR SURFACES WHICH MATE AND SLIDE AGAINST THE CAM BASE CIRCLE SURFACE BETWEEN LOBE ENGAGEMENTS.
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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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |