US3240199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic circuit
Assignee: Motorola Solutions Inc
•
Filing: 1963-05-23
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Granted: 1966-03-15
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Expires: 1983-05-23
Abstract
No abstract record available.
Inventors
- 👤 Nickolas T Neapolitakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:49
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/0407; F02P3/0435
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
AN IGNITION SYSTEM FOR INTERMITTENTLY ENERGIZING A HIGH VOLTAGE IGNITION COIL FOR AN INTERNAL COMBUSTION ENGINE HAVING A POSITIVE GROUND ELECTRICAL SYSTEM, INCLUDING IN COMBUSTION, A COMMON EMITTER TRANSISTOR SWITCHING MEANS CONNECTED IN SERIES WITH THE IGNITION COIL, A BIAS CIRCUIT CONNECTED TO SAID TRANSISTOR SWITCHING MEANS AND BASING THE SAME TO BE NORMALLY CONDUCTING, A TIMING CIRCUIT FOR CAUSING INTERMITTENT CONDUCTION OF SAID TRANSISTOR SWITCHING MEANS AND INCLUDING BREAKER MEANS HAVING A COMMON CONTACT AND CLOSEABLE IN TIMED RELATION WITH THE INTERNAL COMBUSTION ENGINE, A COUPLING TRANSISTOR, AND AN INPUT CIRCUIT FOR SAID COUPLING TRANSISTOR CONNECTED TO SAID TIMING CIRCUIT FOR CONTROLLING THE CONDUCTION OF SAID COUPLING TRANSISTOR IN RESPONSE TO OPENING OF SAID BREAKER MEANS, SAID COUPLING TRANSISTOR FURTHER HAVING AN OUTPUT CIRCUIT CONNECTED TO SAID BIAS CIRCUIT AND CAUSING THE SAME TO BIAS SAID TRANSISTOR SWITCHING MEANS TO CUTT OFF SAID TRANSISTOR SWITCHING MEANS CONDUCTING WHEN SAID BREAKER MEANS ARE CLOSED AND BEING CUT OFF WHEN SAID BREAKER MEANS OPEN TO CAUSE THE IGNITION COIL TO DEVELOP A HIGH VOLTAGE FIRING PULSE.
Claim 2
Dependent Claim
175 words
AN IGNITION SYSTEM FOR INTERMITTENTLY ENERGIZING A HIGH VOLTAGE IGNITION COIL FOR AN INTERNAL COMBUSTION ENGINE HAVING A POSITIVE GROUND ELECTRICAL SYSTEM, INCLUDING IN COMBUSTION, A COMMON EMITTER TRANSISTOR SWITCHING MEANS CONNECTED IN SERIES WITH THE IGNITION COIL, A BIAS CIRCUIT CONNECTED TO SAID TRANSISTOR SWITCHING MEANS AND BASING THE SAME TO BE NORMALLY CONDUCTING, A TIMING CIRCUIT FOR CAUSING INTERMITTENT CONDUCTION OF SAID TRANSISTOR SWITCHING MEANS AND INCLUDING BREAKER MEANS HAVING A COMMON CONTACT AND CLOSEABLE IN TIMED RELATION WITH THE INTERNAL COMBUSTION ENGINE, A COUPLING TRANSISTOR, AND AN INPUT CIRCUIT FOR SAID COUPLING TRANSISTOR CONNECTED TO SAID TIMING CIRCUIT FOR CONTROLLING THE CONDUCTION OF SAID COUPLING TRANSISTOR IN RESPONSE TO OPENING OF SAID BREAKER MEANS, SAID COUPLING TRANSISTOR FURTHER HAVING AN OUTPUT CIRCUIT CONNECTED TO SAID BIAS CIRCUIT AND CAUSING THE SAME TO BIAS SAID TRANSISTOR SWITCHING MEANS TO CUTT OFF SAID TRANSISTOR SWITCHING MEANS CONDUCTING WHEN SAID BREAKER MEANS ARE CLOSED AND BEING CUT OFF WHEN SAID BREAKER MEANS OPEN TO CAUSE THE IGNITION COIL TO DEVELOP A HIGH VOLTAGE FIRING PULSE.
References Cited (Backward Citations)
US2878298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |