US3353524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of operating an automotive engine
Assignee: Old Carco LLC
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Filing: 1965-10-13
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Granted: 1967-11-21
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Expires: 1985-10-13
Abstract
No abstract record available.
Inventors
- 👤 Jorma O Sarto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:09
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/10; F02P; F02P5/00; F02P5/04; F02P5/05; F02P5/10; F02P5/103; Y; Y10; Y10S; Y10S261/00; Y10S261/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN THE METHOD OF OPERATING A PISTON TYPE INTERNAL COMBUSTION ENGINE FOR AN AUTOMOTIVE VEHICLE HAVING A PISTON OPERATED CRANSHAFT ROTATABLE THROUGH A TOP CENTER POSITION AND HAVING AN ACCEPTABLE IDLE OPERATING CONDITION AT OPTIMUM FUEL ECONOMY, AN ELECTRICAL IGNITION SYSTEM ADJUSTABLE FOR ADVANCING OR RETARDING ITS FIRING WITH RESPECT TO SAID TOP CENTER POSITION, A FUEL CHARGING DEVICE, AND A THROTTLE VALVE FOR SAID FUEL CHARGING DEVICE MOVABLE BETWEEN IDLE AND LOAD POSITIONS, THE STEPS OF RETARDING SAID IGNITION SYSTEM TO FIRE AFTER CRANKSHAFT ROTATION BEYOND SAID TOP CENTER POSITION AND SIMULTANEOUSLY MAINTAINING COMBUSTION IN SAID ENGINE BY SUPPLYING FUEL TO SAID ENGINE IN AN APPROXIMATELY STOICHIOMETRIC FUEL-AIR MIXTURE AND AT AN ACCELERATED RATE WITH RESPECT TO SAID OPTIMUM FUEL
Claim 2
Dependent Claim
121 words
IN THE METHOD OF OPERATING A PISTON TYPE INTERNAL COMBUSTION ENGINE FOR AN AUTOMOTIVE VEHICLE HAVING A PISTON OPERATED CRANSHAFT ROTATABLE THROUGH A TOP CENTER POSITION AND HAVING AN ACCEPTABLE IDLE OPERATING CONDITION AT OPTIMUM FUEL ECONOMY, AN ELECTRICAL IGNITION SYSTEM ADJUSTABLE FOR ADVANCING OR RETARDING ITS FIRING WITH RESPECT TO SAID TOP CENTER POSITION, A FUEL CHARGING DEVICE, AND A THROTTLE VALVE FOR SAID FUEL CHARGING DEVICE MOVABLE BETWEEN IDLE AND LOAD POSITIONS, THE STEPS OF RETARDING SAID IGNITION SYSTEM TO FIRE AFTER CRANKSHAFT ROTATION BEYOND SAID TOP CENTER POSITION AND SIMULTANEOUSLY MAINTAINING COMBUSTION IN SAID ENGINE BY SUPPLYING FUEL TO SAID ENGINE IN AN APPROXIMATELY STOICHIOMETRIC FUEL-AIR MIXTURE AND AT AN ACCELERATED RATE WITH RESPECT TO SAID OPTIMUM FUEL
References Cited (Backward Citations)
US3272191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |