US3211138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poppet valve mechanism
Assignee: Individual
•
Filing: 1963-12-30
•
Granted: 1965-10-12
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Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 Clifford H Collins
- 👤 Niel C Thuesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:18
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/30; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
MECHANISM FOR CONTROLLING THE MOVEMENT OF A POPPET VALVE RELATIVE TO A VALVE SEAT THEREFOR IN AN ENGINE BLOCK, SAID VALVE HAVING A STEM GUIDED IN SAID BLOCK, COMPRISING: (A) A ROTATIONAL CAM SHAFT, (B) A CAGE PROVIDED WITH OPPOSED CAM-ENGAGING PORTIONS, ONE ON EACH SIDE OF SAID CAM SHAFT, (C) A HOUSING AROUND SAID CAGE PROVIDED WITH SLIDE GUIDE MEANS FOR THE CAGE INDEPENDENT OF THE GUIDE FOR THE STEM, (D) COMPLEMENTARY CAM MEANS ON SAID SHAFT TO ALTERNATELY ENGAGE SAID CAGE PORTIONS TO RECIPROCATE SAID CAGE TOWARD AND FROM THE VALVE SEAT, (E) SAID CAM MEANS HAVING RECIPROCAL PORTIONS TO CONTROL SUCH MOVEMENT DURING THE MENTIONED ALTERNATE ENGAGEMENT OF THE CAMS, AND (F) COMPRESSIBLE MEANS WHOLLY CARRIED BY THE VALVE STEM AND ENGAGED WITH THE CAGE TO COMPRESS DURING THE FINAL PORTION OF MOVEMENT OF THE CAGE AWAY FROM THE VALVE SEAT AFTER THE VALVE HAS BEEN SEATED, SAID STEM HAVING AN END ENGAGED WITH THE CAGE, (G) THE ENGAGEMENT BETWEEN THE CAGE AND THE STEM AND BETWEEN THE CAGE AND THE COMPRESSIBLE MEANS BEING AN AXIAL ABUTMENT CONNECTION.
Claim 2
Dependent Claim
181 words
MECHANISM FOR CONTROLLING THE MOVEMENT OF A POPPET VALVE RELATIVE TO A VALVE SEAT THEREFOR IN AN ENGINE BLOCK, SAID VALVE HAVING A STEM GUIDED IN SAID BLOCK, COMPRISING: (A) A ROTATIONAL CAM SHAFT, (B) A CAGE PROVIDED WITH OPPOSED CAM-ENGAGING PORTIONS, ONE ON EACH SIDE OF SAID CAM SHAFT, (C) A HOUSING AROUND SAID CAGE PROVIDED WITH SLIDE GUIDE MEANS FOR THE CAGE INDEPENDENT OF THE GUIDE FOR THE STEM, (D) COMPLEMENTARY CAM MEANS ON SAID SHAFT TO ALTERNATELY ENGAGE SAID CAGE PORTIONS TO RECIPROCATE SAID CAGE TOWARD AND FROM THE VALVE SEAT, (E) SAID CAM MEANS HAVING RECIPROCAL PORTIONS TO CONTROL SUCH MOVEMENT DURING THE MENTIONED ALTERNATE ENGAGEMENT OF THE CAMS, AND (F) COMPRESSIBLE MEANS WHOLLY CARRIED BY THE VALVE STEM AND ENGAGED WITH THE CAGE TO COMPRESS DURING THE FINAL PORTION OF MOVEMENT OF THE CAGE AWAY FROM THE VALVE SEAT AFTER THE VALVE HAS BEEN SEATED, SAID STEM HAVING AN END ENGAGED WITH THE CAGE, (G) THE ENGAGEMENT BETWEEN THE CAGE AND THE STEM AND BETWEEN THE CAGE AND THE COMPRESSIBLE MEANS BEING AN AXIAL ABUTMENT CONNECTION.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |