FR2413987A2 - Vehicle anti-theft device with semiconductor switch - has solid state switch connected between battery and unit to be protected - Google Patents
Vehicle anti-theft device with semiconductor switch - has solid state switch connected between battery and unit to be protectedInfo
- Publication number
- FR2413987A2 FR2413987A2 FR7800852A FR7800852A FR2413987A2 FR 2413987 A2 FR2413987 A2 FR 2413987A2 FR 7800852 A FR7800852 A FR 7800852A FR 7800852 A FR7800852 A FR 7800852A FR 2413987 A2 FR2413987 A2 FR 2413987A2
- Authority
- FR
- France
- Prior art keywords
- battery
- unit
- theft device
- switch
- protected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/10—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles actuating a signalling device
- B60R25/1018—Alarm systems characterised by features related to the general power supply
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The anti-theft device cuts off the battery of a vehicle from its electrical system. It has a controlled solid-state semi-conductor switch connected between the battery and the unit to be put out of action, or so connected as to short-circuit this unit. Devices connected to the control electrode of the solid-state switch activate it by means of an impulse, while others cut it out by briefly short-circuiting it. The latter can comprise a short-circuit connection between the two main switch electrodes and including a transitory contact, and there can also be a transitory contact activating the switch.
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7800852A FR2413987A2 (en) | 1978-01-09 | 1978-01-09 | Vehicle anti-theft device with semiconductor switch - has solid state switch connected between battery and unit to be protected |
SE7805854A SE428668B (en) | 1977-06-13 | 1978-05-23 | THEFT PROTECTION DEVICE FOR A VEHICLE |
CA304,140A CA1111947A (en) | 1977-06-13 | 1978-05-25 | Electronic anti-theft battery disconnect and alarm for vehicles |
GB25923/78A GB1598300A (en) | 1977-06-13 | 1978-05-31 | Anti-theft and alarm devices |
CH612178A CH623276A5 (en) | 1977-06-13 | 1978-06-05 | |
US05/913,718 US4223298A (en) | 1977-06-13 | 1978-06-07 | Anti-theft and alarm device for a vehicle |
NL7806351A NL7806351A (en) | 1977-06-13 | 1978-06-12 | THEFT ALARM DEVICE FOR A MOTOR VEHICLE. |
DE19782825757 DE2825757A1 (en) | 1977-06-13 | 1978-06-12 | ALARM |
DK262778A DK262778A (en) | 1977-06-13 | 1978-06-12 | ANTI-THEFT AND ALARM DEVICE FOR VEHICLES |
JP7141078A JPS546253A (en) | 1977-06-13 | 1978-06-13 | Burglarproof device of automobile |
IT24539/78A IT1095071B (en) | 1977-06-13 | 1978-06-13 | ELECTRONIC BATTERY INTERRUPTION AND ALARM DEVICE FOR VEHICLES |
ES470736A ES470736A1 (en) | 1977-06-13 | 1978-06-13 | Anti-theft and alarm device for a vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7800852A FR2413987A2 (en) | 1978-01-09 | 1978-01-09 | Vehicle anti-theft device with semiconductor switch - has solid state switch connected between battery and unit to be protected |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2413987A2 true FR2413987A2 (en) | 1979-08-03 |
Family
ID=9203391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7800852A Pending FR2413987A2 (en) | 1977-06-13 | 1978-01-09 | Vehicle anti-theft device with semiconductor switch - has solid state switch connected between battery and unit to be protected |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2413987A2 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668675A (en) * | 1970-04-03 | 1972-06-06 | Allan D Joens | Remote alarm system |
FR2135105A1 (en) * | 1971-05-04 | 1972-12-15 | Mignot Bernard | |
US3710317A (en) * | 1971-05-19 | 1973-01-09 | Educated Vehicle Syst Inc | Auto alarm system |
FR2250165A1 (en) * | 1973-11-07 | 1975-05-30 | Int Detection Protection | |
US3968666A (en) * | 1973-06-15 | 1976-07-13 | Mackinnon Richard B | Auto anti-theft device |
DE2522364A1 (en) * | 1975-05-21 | 1976-12-02 | Franz Josef Schulte | Vehicle anti-theft device connected to ignition key - with protective leads in same insulation sheath and security circuit powered from small battery |
FR2323553A1 (en) * | 1975-09-09 | 1977-04-08 | Aed Ind Inc | MOTOR VEHICLE ALARM DEVICE |
-
1978
- 1978-01-09 FR FR7800852A patent/FR2413987A2/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3668675A (en) * | 1970-04-03 | 1972-06-06 | Allan D Joens | Remote alarm system |
FR2135105A1 (en) * | 1971-05-04 | 1972-12-15 | Mignot Bernard | |
US3710317A (en) * | 1971-05-19 | 1973-01-09 | Educated Vehicle Syst Inc | Auto alarm system |
US3968666A (en) * | 1973-06-15 | 1976-07-13 | Mackinnon Richard B | Auto anti-theft device |
FR2250165A1 (en) * | 1973-11-07 | 1975-05-30 | Int Detection Protection | |
DE2522364A1 (en) * | 1975-05-21 | 1976-12-02 | Franz Josef Schulte | Vehicle anti-theft device connected to ignition key - with protective leads in same insulation sheath and security circuit powered from small battery |
FR2323553A1 (en) * | 1975-09-09 | 1977-04-08 | Aed Ind Inc | MOTOR VEHICLE ALARM DEVICE |
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