US3780343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition support system
Assignee: Individual
•
Filing: 1971-05-12
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Granted: 1973-12-18
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Expires: 1991-05-12
Abstract
Abstract An ignition control system for a vehicle in which a high voltage capacitor is charged from the vehicle battery through a D.C. to D.C. converter and discharged through the ignition coil upon the firing of a silicon controlled rectifier by a pulse generator controlled by the contact breaker of the vehicle distributor.
Inventors
- 👤 F Stonham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:05
CPC Classifications
F; F02; F02P; F02P3/00; F02P3/06; F02P3/08; F02P3/0876; F02P3/0884
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
161 words
A control system for an ignition system including an ignition coil and a distributor having a steel breaker comprising: a battery for producing an output voltage; converter means coupled to said battery for producing a voltage substantially higher than that produced by said battery; capacitor means coupled to said converter means for providing a capacitance and adapted to be charged by said converter means; controllable means coupled to said converter means and said capacitor means and being controllable for removing said higher voltage from said capacitor means and for causing said capacitor means to discharge through said ignition coil; pulse generator means for generating trigger pulses and for controlling said controllable means in response to the opening of said contact breaker in said distributor; and means for controlling the amplitude of the trigger pulses generated by said pulse generator means so as to reduce the amplitude of the trigger pulses with an increase in the repetition frequency of the trigger pulses.
Claim 2
Dependent Claim
161 words
A control system for an ignition system including an ignition coil and a distributor having a steel breaker comprising: a battery for producing an output voltage; converter means coupled to said battery for producing a voltage substantially higher than that produced by said battery; capacitor means coupled to said converter means for providing a capacitance and adapted to be charged by said converter means; controllable means coupled to said converter means and said capacitor means and being controllable for removing said higher voltage from said capacitor means and for causing said capacitor means to discharge through said ignition coil; pulse generator means for generating trigger pulses and for controlling said controllable means in response to the opening of said contact breaker in said distributor; and means for controlling the amplitude of the trigger pulses generated by said pulse generator means so as to reduce the amplitude of the trigger pulses with an increase in the repetition frequency of the trigger pulses.
Claim 3
Dependent Claim
34 words
The control system of claim 1 wherein said controllable means comprise a silicon controlled rectifier and wherein said pulse generator means applies a trigger pulse to the gate electrode of said silicon controlled rectifier.
Claim 4
Dependent Claim
64 words
A control system as in claim 2 wherein said means for controlling the amplitude of the trigger pulses includes a second capacitor, means for regulating the rate of charging of said second capacitor and means for applying the trigger pulses to the gate of said silicon controlled rectifier with the amplitude of the trigger pulses dependent on the voltage attained across said second capacitor.
Claim 5
Dependent Claim
22 words
A control system as in claim 3 wherein the means for regulating the rate of charging of the second capacitor is adjustable.
Claim 6
Dependent Claim
30 words
A control system as in claim 1, including a removable plug unit through which connections are made from said pulse generator means to said contact breaker and said ignition coil.
Claim 7
Dependent Claim
39 words
A control system as in claim 5 including a further capacitor, wherein said removable plug unit is insertable in a second position to form a conventional ignition circuit with said ignition coil, said contact breaker and said further capacitor.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |