US3680656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock control device for a compression-ignited internal combustion engine
Assignee: Automobiles Peugeot SA
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Filing: 1971-03-22
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Granted: 1972-08-01
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Expires: 1991-03-22
Abstract
Abstract A control device for preventing the return of the contact key of the vehicle to its off position so long as the engine of the vehicle operates which would otherwise constitute a serious danger bearing in mind that the key simultaneously actuates an antitheft device which is usually employed to lock the steering gear of the vehicle. The device comprises locking means controlled by an electromagnet whose coil is connected in parallel to the battery charging circuit indicator.
Inventors
- 👤 Andre Leger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:22
CPC Classifications
F; F02; F02P; F02P19/00; F02P19/02; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5956
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
A control device for a compression-ignited internal combustion engine comprising an electrical switch having three positions, namely an on, an off and an engine starting position, a key associated with an antitheft device for shifting said switch to said positions, electromagnetically controlled locking means for locking said switch and said key in said on position so long as the engine operates, manual control means shiftable to a position for closing a fuel supply circuit of the engine and stopping the engine, a battery, a charging circuit for the battery comprising an alternator and a charging indicator, and actuating means comprising a coil connected in parallel with said indicator in said battery charging circuit for actuating said locking means.
Claim 2
Dependent Claim
118 words
A control device for a compression-ignited internal combustion engine comprising an electrical switch having three positions, namely an on, an off and an engine starting position, a key associated with an antitheft device for shifting said switch to said positions, electromagnetically controlled locking means for locking said switch and said key in said on position so long as the engine operates, manual control means shiftable to a position for closing a fuel supply circuit of the engine and stopping the engine, a battery, a charging circuit for the battery comprising an alternator and a charging indicator, and actuating means comprising a coil connected in parallel with said indicator in said battery charging circuit for actuating said locking means.
Claim 3
Dependent Claim
31 words
A device as claimed in claim 1, wherein said actuating means comprise an electromagnet having said coil and a moving element shiftable by said coil and connected to said locking means.
Claim 4
Dependent Claim
57 words
A control device as claimed in claim 1, wherein said actuating means comprise an electromagnet having a coil and a moving element shiftable by said coil of said electromagnet, which coil is connected in series with a switch which is associated with and controlled by a relay comprising said coil connected in parallel with said charging indicatOr.
Claim 5
Dependent Claim
33 words
A control device as claimed in claim 3, wherein said coil of said electromagnet is connected in series with an electrical oil pressure contact and in parallel with an electrical oil pressure indicator.
Claim 6
Dependent Claim
53 words
A control device as claimed in claim 1, further comprising second locking means for locking said manual control means in said position for stopping the engine, and a second electromagnet for actuating said second locking means, said second electromagnet having a coil connected in series with an engine starting contact of said switch.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |