FR2452141A1 - Barriere de detection du franchissement d'un passage - Google Patents

Barriere de detection du franchissement d'un passage

Info

Publication number
FR2452141A1
FR2452141A1 FR7907332A FR7907332A FR2452141A1 FR 2452141 A1 FR2452141 A1 FR 2452141A1 FR 7907332 A FR7907332 A FR 7907332A FR 7907332 A FR7907332 A FR 7907332A FR 2452141 A1 FR2452141 A1 FR 2452141A1
Authority
FR
France
Prior art keywords
alarm
transverse bars
false triggering
readily visible
intruder detection
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.)
Granted
Application number
FR7907332A
Other languages
English (en)
Other versions
FR2452141B3 (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 FR7907332A priority Critical patent/FR2452141A1/fr
Publication of FR2452141A1 publication Critical patent/FR2452141A1/fr
Application granted granted Critical
Publication of FR2452141B3 publication Critical patent/FR2452141B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/126—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room
    • 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)
  • Burglar Alarm Systems (AREA)

Abstract

L'INVENTION CONCERNE UNE BARRIERE DE DETECTION DU FRANCHISSEMENT D'UNE OUVERTURE 1, PLACEE EN TRAVERS DE CETTE OUVERTURE QUI EST CONSTITUEE PAR DES MONTANTS LATERAUX 23 FIXES, ENCADRANT L'OUVERTURE ET PAR UNE PLURALITE D'ELEMENTS TRANSVERSAUX 8, 9, 10 ENTRE LESDITS MONTANTS; CHAQUE ELEMENT TRANSVERSAL QUI EST RELIE MECANIQUEMENT A CHAQUE MONTANT MAGNETIQUEMENT COMPORTANT AU MOINS UN TRONCON 9B DE CONDUCTEUR ELECTRIQUE QUI EST CONNECTE EN SERIE ENTRE DEUX TRONCONS 5A, 5B DE CONDUCTEURS PORTES PAR LES MONTANTS 2, 3 POUR FORMER UN CONDUCTEUR ELECTRIQUE CONTINU PASSANT PAR CHAQUE ELEMENT ET ALIMENTE EN COURANT ELECTRIQUE, TOUTE ABSENCE DE CIRCULATION DE COURANT DANS CE CONDUCTEUR CONSTITUANT EN SERVICE UN SIGNAL DE COMMANDE POUR UN DISPOSITIF D'ALARME 13, 14. APPLICATION AUX DISPOSITIFS DE PROTECTION CONTRE LE VOL.
FR7907332A 1979-03-22 1979-03-22 Barriere de detection du franchissement d'un passage Granted FR2452141A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7907332A FR2452141A1 (fr) 1979-03-22 1979-03-22 Barriere de detection du franchissement d'un passage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7907332A FR2452141A1 (fr) 1979-03-22 1979-03-22 Barriere de detection du franchissement d'un passage

Publications (2)

Publication Number Publication Date
FR2452141A1 true FR2452141A1 (fr) 1980-10-17
FR2452141B3 FR2452141B3 (fr) 1982-01-22

Family

ID=9223472

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7907332A Granted FR2452141A1 (fr) 1979-03-22 1979-03-22 Barriere de detection du franchissement d'un passage

Country Status (1)

Country Link
FR (1) FR2452141A1 (fr)

Also Published As

Publication number Publication date
FR2452141B3 (fr) 1982-01-22

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Legal Events

Date Code Title Description
ST Notification of lapse