US3434009A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic ignition system using oscillator controlled capacitor discharge
Assignee: Ford Motor Co
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Filing: 1966-11-09
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Granted: 1969-03-18
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Expires: 1986-11-09
Abstract
No abstract record available.
Inventors
- 👤 Ole K Nilssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:37
CPC Classifications
F; F02; F02P; F02P7/00; F02P7/06; F02P7/067; F02P7/0675; F02P3/00; F02P3/06; F02P3/08; F02P3/0807; F02P3/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE HAVING A SOURCE OF ELECTRICAL ENERGY AND A COIL WITH A PRIMARY WINDING AND SECONDARY WINDING, MEANS FOR INDUCING AN INGNITIOIN VOLTAGE IN THE COIL SECONDARY WINDING COMPRISING AN OSCILLATOR CONNECTED ACROSS SAID SOURCE OF ELECTRICAL ENERGY, TIMING MEANS OPERATED BY THE ENGINE TO START AND STOP OSCILLATION OF SAID OSCILLATOR, A THYRISTOR IN SERIES WITH THE COIL PRIMARY WINDING, A CAPACITOR IN PARALLEL WITH SAID THYRISTOR AND SAID COIL PRIMARY WINDING, WINDING MEANS FOR CHARGING THE CAPACITOR WHEN THE OSCILLATOR IS OSCILLATING, AND CIRCUIT MEANS RESPONSIVE TO THE CURRENT THROUGH THE OSCILLATOR FOR TURNING SAID THYRISTOR TO A CONDUCTING STATE TO DISCHARGE THE CAPACITOR THROUGH THE COIL PRIMARY WINDING WHEN THE OSCILLATOR SWITCHES TO QUIESCENCE.
Claim 2
Dependent Claim
125 words
IN AN IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE HAVING A SOURCE OF ELECTRICAL ENERGY AND A COIL WITH A PRIMARY WINDING AND SECONDARY WINDING, MEANS FOR INDUCING AN INGNITIOIN VOLTAGE IN THE COIL SECONDARY WINDING COMPRISING AN OSCILLATOR CONNECTED ACROSS SAID SOURCE OF ELECTRICAL ENERGY, TIMING MEANS OPERATED BY THE ENGINE TO START AND STOP OSCILLATION OF SAID OSCILLATOR, A THYRISTOR IN SERIES WITH THE COIL PRIMARY WINDING, A CAPACITOR IN PARALLEL WITH SAID THYRISTOR AND SAID COIL PRIMARY WINDING, WINDING MEANS FOR CHARGING THE CAPACITOR WHEN THE OSCILLATOR IS OSCILLATING, AND CIRCUIT MEANS RESPONSIVE TO THE CURRENT THROUGH THE OSCILLATOR FOR TURNING SAID THYRISTOR TO A CONDUCTING STATE TO DISCHARGE THE CAPACITOR THROUGH THE COIL PRIMARY WINDING WHEN THE OSCILLATOR SWITCHES TO QUIESCENCE.
References Cited (Backward Citations)
US3324841A
Cited
US3280810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |