DE3361943D1 - Grate with incorporated alarm system - Google Patents

Grate with incorporated alarm system

Info

Publication number
DE3361943D1
DE3361943D1 DE8383101279T DE3361943T DE3361943D1 DE 3361943 D1 DE3361943 D1 DE 3361943D1 DE 8383101279 T DE8383101279 T DE 8383101279T DE 3361943 T DE3361943 T DE 3361943T DE 3361943 D1 DE3361943 D1 DE 3361943D1
Authority
DE
Germany
Prior art keywords
grate
circuit
conductors
resistance
breaking
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.)
Expired
Application number
DE8383101279T
Other languages
German (de)
Inventor
Giannino Modolo
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
Application granted granted Critical
Publication of DE3361943D1 publication Critical patent/DE3361943D1/en
Expired 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
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/01—Grilles fixed to walls, doors, or windows; Grilles moving with doors or windows; Walls formed as grilles, e.g. claustra
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Incineration Of Waste (AREA)

Abstract

Into a grate (1), suited to create a barrier in openings to be protected against burglary, and made of steel with tubes or structural shapes, several pairs of conductors (2, 3; 4, 5) are introduced, which cross it in the horizontal and vertical directions and also in the anchorages (10), the pairs of conductors (2, 3; 4, 5) close on a resistance located inside the grate (1) and are electrically connected to a balancing electronic circuit which intercepts any variation of the global resistance of the circuit. Any tampering or breaking of the bars of the grate (1) causes the breaking or the short circuit of the electric conductors (2-5) and, therefore, a variation of the resistance, which is felt by the balancing circuit, which allows the opening of a relay being connected to the alarm station causing its activation.
DE8383101279T 1982-02-19 1983-02-10 Grate with incorporated alarm system Expired DE3361943D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT85519/82A IT1193074B (en) 1982-02-19 1982-02-19 LATTICE WITH BUILT-IN ALARM SYSTEM

Publications (1)

Publication Number Publication Date
DE3361943D1 true DE3361943D1 (en) 1986-03-13

Family

ID=11327398

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8383101279T Expired DE3361943D1 (en) 1982-02-19 1983-02-10 Grate with incorporated alarm system

Country Status (4)

Country Link
EP (1) EP0087076B1 (en)
AT (1) ATE17770T1 (en)
DE (1) DE3361943D1 (en)
IT (1) IT1193074B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9035770B2 (en) 2011-03-10 2015-05-19 Marius de Wet de Villiers Alarmed intruder barrier
ITRM20120302A1 (en) * 2012-06-28 2013-12-29 Saverio Santomassimo PASSIVE PROTECTION SYSTEM FOR GRADES AND METAL AND NON-SHUTTER GATES AND METALLIC SHUTTERS AND NOT METALLIC AND NOT REFERED
CN102839902B (en) * 2012-08-03 2014-07-02 安徽科蓝智能技术有限公司 Threading method for distributed resistance network anti-theft window
CN104727719B (en) * 2013-12-24 2016-06-08 苏州汇诚智造工业设计有限公司 A kind of manufacture method of the guardrail modelled after an antique with warning box

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE367034C (en) * 1923-01-16 Johannes Henggi Protective grille with alarm circuit closed when its crossbars move
US2374139A (en) * 1941-07-03 1945-04-17 Oliver L Schriner Burglar alarm
DE2653056C3 (en) * 1976-11-23 1981-04-23 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Protection device for the air passage areas of rooms or buildings
DE2856819A1 (en) * 1978-12-30 1980-07-17 Wilhelm Tretschoks Netting wire for safety fences - has conductive detecting wires in core surrounded by supporting wires and insulating sheath
DE2925624A1 (en) * 1979-06-26 1981-01-15 Geiger Maschf Helmut Safety bar screen for power stations - produces warning signal of any interference attempt by frogmen
DE3006999A1 (en) * 1980-02-25 1981-09-24 Ernst 4200 Oberhausen Blaser Circuit for security fence - has four wires forming arms of Wheatstone bridge to release alarm when short-circuited

Also Published As

Publication number Publication date
EP0087076B1 (en) 1986-01-29
ATE17770T1 (en) 1986-02-15
IT1193074B (en) 1988-06-02
EP0087076A1 (en) 1983-08-31
IT8285519A0 (en) 1982-02-19

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee