US3259798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition system
Assignee: Ford Motor Co
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Filing: 1963-03-18
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Granted: 1966-07-05
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Elmer E Yonge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:46
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/02; F02P3/04; F02P3/0407; F02P3/0435; F02P15/00; F02P15/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A TRANSISTORIZED IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGING COMPRISING A PLURALITY OF SPARK PLUGS, A DISTRIBUTOR FOR DISTRIBUTING ELECTRICAL ENERGY TO SAID SPARK PLUGS, AN IGNITION COIL INCLUDING A PRIMARY, A SECONDARY AND A FEEDBACK WINDING, SAID SECONDARY WINDING BEING CONNECTED TO SAID DISTRIBUTOR, A TRANSISTOR INCLUDING AN EMITTER, A COLLECTOR AND A BASE, THE PRIMARY WINDING OF SAID IGNITION COIL BEING CONNECTED IN SERIES WITH SAID EMITTER AND SAID COLLECTOR, THE FEEDBACK WINDING OF SAID IGNITION COIL BEING CONNECTED BETWEEN THE EMITTER AND THE BASE OF SAID TRANSISTOR, A CONTROL CIRCUIT CONNECTED TO SAID BASE FOR APPLYING A BIAS TO SAID TRANSISTOR, A PAIR OF BREAKER POINTS POSITIONED IN SAID CONTROL CIRCUIT, SAID FEEDBACK WINDING APPLYING A PULSE OF ELECTRICAL ENERGY TO THE BASE OF THE TRANSISTOR WHEN SAID BREAKER POINTS ARE OPENED, THE POLARITY OF SAID PULSE BEING OPPOSITE TO THE POLARITY OF THE BASE BIAS.
Claim 2
Dependent Claim
149 words
A TRANSISTORIZED IGNITION SYSTEM FOR AN INTERNAL COMBUSTION ENGING COMPRISING A PLURALITY OF SPARK PLUGS, A DISTRIBUTOR FOR DISTRIBUTING ELECTRICAL ENERGY TO SAID SPARK PLUGS, AN IGNITION COIL INCLUDING A PRIMARY, A SECONDARY AND A FEEDBACK WINDING, SAID SECONDARY WINDING BEING CONNECTED TO SAID DISTRIBUTOR, A TRANSISTOR INCLUDING AN EMITTER, A COLLECTOR AND A BASE, THE PRIMARY WINDING OF SAID IGNITION COIL BEING CONNECTED IN SERIES WITH SAID EMITTER AND SAID COLLECTOR, THE FEEDBACK WINDING OF SAID IGNITION COIL BEING CONNECTED BETWEEN THE EMITTER AND THE BASE OF SAID TRANSISTOR, A CONTROL CIRCUIT CONNECTED TO SAID BASE FOR APPLYING A BIAS TO SAID TRANSISTOR, A PAIR OF BREAKER POINTS POSITIONED IN SAID CONTROL CIRCUIT, SAID FEEDBACK WINDING APPLYING A PULSE OF ELECTRICAL ENERGY TO THE BASE OF THE TRANSISTOR WHEN SAID BREAKER POINTS ARE OPENED, THE POLARITY OF SAID PULSE BEING OPPOSITE TO THE POLARITY OF THE BASE BIAS.
References Cited (Backward Citations)
US3034019A
Cited
US3046447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |