FR2437958A1 - Motor vehicle antitheft alarm system - has vibration sensor and RC delay circuit allowing driver to dismount - Google Patents

Motor vehicle antitheft alarm system - has vibration sensor and RC delay circuit allowing driver to dismount

Info

Publication number
FR2437958A1
FR2437958A1 FR7828053A FR7828053A FR2437958A1 FR 2437958 A1 FR2437958 A1 FR 2437958A1 FR 7828053 A FR7828053 A FR 7828053A FR 7828053 A FR7828053 A FR 7828053A FR 2437958 A1 FR2437958 A1 FR 2437958A1
Authority
FR
France
Prior art keywords
alarm system
timing
circuit
monostable
dismount
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
Application number
FR7828053A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7828053A priority Critical patent/FR2437958A1/en
Publication of FR2437958A1 publication Critical patent/FR2437958A1/en
Pending legal-status Critical Current

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
    • B60R25/1003—Alarm systems characterised by arm or disarm features
    • 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)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The alarm system is operated by vibration or by open or closed circuit loops. A timing circuit allows the owner to alight before the alarm circuit is switched on. A detector circuit is switched on or off by a key switch. On switch on a timing circuit inhibits a gate to which a vibrations sensor is connected. When the timing capacitor is charged it causes a timing monostable to be initiated. When this time has elapsed an alarm monostable is initiated for a predetermined time. During this period an astable commences to oscillate and switch on a transistor via an inverter. The transistor drives a vibrator or vehicle horn for each negative pulse on its base. A monostable operates if power from the battery is cut off.
FR7828053A 1978-10-02 1978-10-02 Motor vehicle antitheft alarm system - has vibration sensor and RC delay circuit allowing driver to dismount Pending FR2437958A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7828053A FR2437958A1 (en) 1978-10-02 1978-10-02 Motor vehicle antitheft alarm system - has vibration sensor and RC delay circuit allowing driver to dismount

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7828053A FR2437958A1 (en) 1978-10-02 1978-10-02 Motor vehicle antitheft alarm system - has vibration sensor and RC delay circuit allowing driver to dismount

Publications (1)

Publication Number Publication Date
FR2437958A1 true FR2437958A1 (en) 1980-04-30

Family

ID=9213211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828053A Pending FR2437958A1 (en) 1978-10-02 1978-10-02 Motor vehicle antitheft alarm system - has vibration sensor and RC delay circuit allowing driver to dismount

Country Status (1)

Country Link
FR (1) FR2437958A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2529152A1 (en) * 1982-04-27 1983-12-30 Gutierrez Carlos ANTITHEFT AND RECOVERY SYSTEM FOR VEHICLES
FR2653920A1 (en) * 1989-11-02 1991-05-03 Texton Alarm system especially for a motor vehicle, with an independent electrical energy source
EP0780820A3 (en) * 1995-12-12 1998-04-15 Denso Corporation Alarm device having integrated battery

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2452156A1 (en) * 1974-11-02 1976-05-06 Voll Walter Electronic anti-theft device for car - fitted to battery to monitor all circuits when vehicle parked
FR2317138A1 (en) * 1975-07-10 1977-02-04 Boutaric Rene Electronic car antitheft alarm - has three time delay circuits operated by door pillar switches with alarm isolating ignition coil and activating horn and lights
US4038635A (en) * 1976-01-02 1977-07-26 Schotz Larry A Vehicle intrusion alarm circuit
US4103285A (en) * 1976-12-07 1978-07-25 William Lloyd Vehicle anti-theft alarm system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2452156A1 (en) * 1974-11-02 1976-05-06 Voll Walter Electronic anti-theft device for car - fitted to battery to monitor all circuits when vehicle parked
FR2317138A1 (en) * 1975-07-10 1977-02-04 Boutaric Rene Electronic car antitheft alarm - has three time delay circuits operated by door pillar switches with alarm isolating ignition coil and activating horn and lights
US4038635A (en) * 1976-01-02 1977-07-26 Schotz Larry A Vehicle intrusion alarm circuit
US4103285A (en) * 1976-12-07 1978-07-25 William Lloyd Vehicle anti-theft alarm system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2529152A1 (en) * 1982-04-27 1983-12-30 Gutierrez Carlos ANTITHEFT AND RECOVERY SYSTEM FOR VEHICLES
FR2653920A1 (en) * 1989-11-02 1991-05-03 Texton Alarm system especially for a motor vehicle, with an independent electrical energy source
EP0780820A3 (en) * 1995-12-12 1998-04-15 Denso Corporation Alarm device having integrated battery

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