Patent US1781588A successfully refreshed from Google Patents.
Patent US3276438A successfully refreshed from Google Patents.
US3276438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engine valving arrangement
Assignee: Motors Liquidation Co
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Filing: 1964-01-31
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Granted: 1966-10-04
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Expires: 1984-01-31
Abstract
No abstract record available.
Inventors
- 👤 Richard L Keinath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:45
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/18; F01L1/181; F01L1/182; F01L1/183; F02; F02F; F02F1/00; F02F1/24; F02F1/26; F02F1/36; F02F1/38; F02B; F02B1/00; F02B1/02; F02B1/04; F02B2275/00; F02B2275/34; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02F2001/244; F02F2001/245; F02F2001/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN AN INTERNAL COMBUSTION ENGINE OF THE TYPE COMPRISING AN ENGINE BLOCK FORMING A LONGITUDINAL BANK OF CYLINDERS, A CAMSHAFT IN THE BLOCK EXTENDING ALONG THE SIDE OF THE CYLINDER BANK, RECIPROCAL CAMSHAFT FOLLOWERS IN THE BLOCK, A CYLINDER HEAD ON THE BLOCK, INTAKE AND EXHAUST VALVE TRAINS CARRIED THEREBY FOR EACH CYLINDER IN THE BANK, EACH VALVE TRAIN DEFINING A PLANE AND COMPRISING A RECIPROCAL VALVE IN THE HEAD, A ROCKER ARM ENGAGED WITH THE VALVE, A PIVOT CONNECTION BETWEEN THE ROCKER ARM AND THE HEAD AND A RECIPROCAL PUSH ROD HAVING ITS ENDS ENGAGED BY THE ROCKER ARM AND A RESPECTIVE CAMSHAFT FOLLOWER; THE IMPROVEMENT COMPRISING ARRANGING THE PLANES OF THE INTAKE AND EXHAUST VALVE TRAINS OF EACH CYLINDER TO CONVERGE TOWARD THE CYLINDER AXIS AND TOWARD EACH OTHER IN DOWNWARD DIRECTION WHEN THE CYLINDER BANK IS SEEN IN SIDE ELEVATION AND ARRANGING SAID PLANES TO CONVERGE TOWARD THE CYLINDER AXIS AND TOWARD EACH OTHER IN CAMSHAFT-TO-CYLINDER DIRECTION WHEN THE CYLINDER BANK IS SEEN IN PLAN ELEVATION.
Claim 2
Dependent Claim
169 words
IN AN INTERNAL COMBUSTION ENGINE OF THE TYPE COMPRISING AN ENGINE BLOCK FORMING A LONGITUDINAL BANK OF CYLINDERS, A CAMSHAFT IN THE BLOCK EXTENDING ALONG THE SIDE OF THE CYLINDER BANK, RECIPROCAL CAMSHAFT FOLLOWERS IN THE BLOCK, A CYLINDER HEAD ON THE BLOCK, INTAKE AND EXHAUST VALVE TRAINS CARRIED THEREBY FOR EACH CYLINDER IN THE BANK, EACH VALVE TRAIN DEFINING A PLANE AND COMPRISING A RECIPROCAL VALVE IN THE HEAD, A ROCKER ARM ENGAGED WITH THE VALVE, A PIVOT CONNECTION BETWEEN THE ROCKER ARM AND THE HEAD AND A RECIPROCAL PUSH ROD HAVING ITS ENDS ENGAGED BY THE ROCKER ARM AND A RESPECTIVE CAMSHAFT FOLLOWER; THE IMPROVEMENT COMPRISING ARRANGING THE PLANES OF THE INTAKE AND EXHAUST VALVE TRAINS OF EACH CYLINDER TO CONVERGE TOWARD THE CYLINDER AXIS AND TOWARD EACH OTHER IN DOWNWARD DIRECTION WHEN THE CYLINDER BANK IS SEEN IN SIDE ELEVATION AND ARRANGING SAID PLANES TO CONVERGE TOWARD THE CYLINDER AXIS AND TOWARD EACH OTHER IN CAMSHAFT-TO-CYLINDER DIRECTION WHEN THE CYLINDER BANK IS SEEN IN PLAN ELEVATION.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |