US3203409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling the air taken into the combustion chambers of a spark ignition internal combustion engine
Assignee: Georgia Tech Research Institute
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Filing: 1963-07-09
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Granted: 1965-08-31
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Expires: 1983-07-09
Abstract
No abstract record available.
Inventors
- 👤 Robert L Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:02
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/44; F01L1/443; F01L15/00; F01L15/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING A ROTATING CRANKSHAFT, A COMBUSTION CHAMBER, AN AIR INLET PASSAGE FOR ADMITTING AIR INTO THE COMBUSTION CHAMBER, AND AN AIR INTAKE VALVE FOR OPENING AND CLOSING THE AIR INLET PASSAGE AT PAETICULAR ROTATIONAL POSITIONS OF THE CRANKSHAFT OF VALVE MEANS RESPONSIVE TO CRANKSHAFT ROTATION FOR OPENING AND CLOSING THE AIR INLET PASSAGE INDEPENDENTLY OF THE OPENING AND CLOSING OF THE AIR INLET PASSAGE BY THE AIR INTAKE VALVE, SAID VALVE MEANS BEING EFFECTIVELY IMMEDIATELY ADJACENT SAID INTAKE VALVE, AND OF CONTROL MEANS FOR VARYING THE ROTATIONAL POSITIONS OF THE CRANKSHAFT AT WHICH THE VALVE MEANS OPEN AND CLOSES THE AIT INLET PASSAGE.
Claim 2
Dependent Claim
110 words
THE COMBINATION WITH AN INTERNAL COMBUSTION ENGINE HAVING A ROTATING CRANKSHAFT, A COMBUSTION CHAMBER, AN AIR INLET PASSAGE FOR ADMITTING AIR INTO THE COMBUSTION CHAMBER, AND AN AIR INTAKE VALVE FOR OPENING AND CLOSING THE AIR INLET PASSAGE AT PAETICULAR ROTATIONAL POSITIONS OF THE CRANKSHAFT OF VALVE MEANS RESPONSIVE TO CRANKSHAFT ROTATION FOR OPENING AND CLOSING THE AIR INLET PASSAGE INDEPENDENTLY OF THE OPENING AND CLOSING OF THE AIR INLET PASSAGE BY THE AIR INTAKE VALVE, SAID VALVE MEANS BEING EFFECTIVELY IMMEDIATELY ADJACENT SAID INTAKE VALVE, AND OF CONTROL MEANS FOR VARYING THE ROTATIONAL POSITIONS OF THE CRANKSHAFT AT WHICH THE VALVE MEANS OPEN AND CLOSES THE AIT INLET PASSAGE.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |