Patent US3915542A successfully refreshed from Google Patents.
US3915542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic ignition device for combustion engines of motors vehicles
Assignee: South East European Purchasing and Export Establishment
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Filing: 1974-01-16
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Granted: 1975-10-28
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Expires: 1994-01-16
Abstract
Abstract An electronic ignition device for combustion engines of motor vehicles comprising a preliminary stage and an output stage, each such stage having at least one active semiconductor element and that at least the active semiconductor element of the preliminary stage can be removed from the ignition device.
Inventors
- 👤 Igor Schou-Kjeldsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:45
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/04; B60R25/045
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
187 words
An electronic ignition system for a vehicle which is provided with an internal combustion engine, said ignition system comprising a power stage connected to an ignition coil and a switching stage for controlling the power stage, said switching stage being controlled by an ignition time detector, both the power stage and the switching stage possessing at least one transistor which is essential to the operation of said system, the transistor of the switching stage being encapsulated within a support element constructed as a plug element, said plug element being removably electrically connected by means of a coupling element to the remaining components of the ignition system through given ones of first contact members on the plug element which cooperate with given ones of second contact members on the coupling element, such that upon removal of the plug element from the coupling element the transistor of the switching stage is electrically disconnected from the ignition system to disable the ignition system and thereby prevent theft of the vehicle, said coupling element being capable of being fixedly mounted at a location on the vehicle remote from the power stage.
Claim 2
Dependent Claim
187 words
An electronic ignition system for a vehicle which is provided with an internal combustion engine, said ignition system comprising a power stage connected to an ignition coil and a switching stage for controlling the power stage, said switching stage being controlled by an ignition time detector, both the power stage and the switching stage possessing at least one transistor which is essential to the operation of said system, the transistor of the switching stage being encapsulated within a support element constructed as a plug element, said plug element being removably electrically connected by means of a coupling element to the remaining components of the ignition system through given ones of first contact members on the plug element which cooperate with given ones of second contact members on the coupling element, such that upon removal of the plug element from the coupling element the transistor of the switching stage is electrically disconnected from the ignition system to disable the ignition system and thereby prevent theft of the vehicle, said coupling element being capable of being fixedly mounted at a location on the vehicle remote from the power stage.
Claim 3
Dependent Claim
27 words
The ignition system as defined in claim 1, wherein both the first contact elements and the second contact elements have constructional forms which differ from one another.
Claim 4
Dependent Claim
34 words
The ignition system as defined in claim 1, wherein the plug element and the coupling element have cooperating means which cooperate with one another when the plug element is inserted into the coupling element.
Claim 5
Dependent Claim
43 words
The ignition system as defined in claim 3, wherein the cooperating means of the plug element comprise projections and the cooperating means of the coupling element comprise recesses which cooperate with one another when the plug element is inserted into the connection element.
Claim 6
Dependent Claim
43 words
The ignition system as defined in claim 3, wherein the cooperating means of the plug element comprises recesses and the cooperating means of the coupling element comprises projectIons which cooperate with one another when the plug element is inserted into the coupling element.
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) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |