FR2291555A1 - Audio alarm signal means for intruder detection circuit - is fitted with battery supplying several alarm devices - Google Patents

Audio alarm signal means for intruder detection circuit - is fitted with battery supplying several alarm devices

Info

Publication number
FR2291555A1
FR2291555A1 FR7437579A FR7437579A FR2291555A1 FR 2291555 A1 FR2291555 A1 FR 2291555A1 FR 7437579 A FR7437579 A FR 7437579A FR 7437579 A FR7437579 A FR 7437579A FR 2291555 A1 FR2291555 A1 FR 2291555A1
Authority
FR
France
Prior art keywords
detection circuit
devices
fitted
intruder detection
signal means
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.)
Withdrawn
Application number
FR7437579A
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.)
BRILLIE ATELIERS
Original Assignee
BRILLIE ATELIERS
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 BRILLIE ATELIERS filed Critical BRILLIE ATELIERS
Priority to FR7437579A priority Critical patent/FR2291555A1/en
Publication of FR2291555A1 publication Critical patent/FR2291555A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

The intruder detection circuit is in the form of a closed loop, with the alarm means operated in response to the loop circuit being opened. The alarm signal means consists of an electronic device, which automatically provides a modulated signal upon the loop circuit being opened for several audio alarm devices with all the devices being supplied from a small battery, e.g. charged from the mains, allowing the alarm devices to operate for a number of minutes. Pref. the battery charge is sufficient to allow 4 or 5 air horns to operate for about 12 minutes.
FR7437579A 1974-11-14 1974-11-14 Audio alarm signal means for intruder detection circuit - is fitted with battery supplying several alarm devices Withdrawn FR2291555A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7437579A FR2291555A1 (en) 1974-11-14 1974-11-14 Audio alarm signal means for intruder detection circuit - is fitted with battery supplying several alarm devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7437579A FR2291555A1 (en) 1974-11-14 1974-11-14 Audio alarm signal means for intruder detection circuit - is fitted with battery supplying several alarm devices

Publications (1)

Publication Number Publication Date
FR2291555A1 true FR2291555A1 (en) 1976-06-11

Family

ID=9144930

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7437579A Withdrawn FR2291555A1 (en) 1974-11-14 1974-11-14 Audio alarm signal means for intruder detection circuit - is fitted with battery supplying several alarm devices

Country Status (1)

Country Link
FR (1) FR2291555A1 (en)

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Legal Events

Date Code Title Description
ST Notification of lapse