GB1393125A - Connection devices for alarm systems - Google Patents

Connection devices for alarm systems

Info

Publication number
GB1393125A
GB1393125A GB2608772A GB2608772A GB1393125A GB 1393125 A GB1393125 A GB 1393125A GB 2608772 A GB2608772 A GB 2608772A GB 2608772 A GB2608772 A GB 2608772A GB 1393125 A GB1393125 A GB 1393125A
Authority
GB
United Kingdom
Prior art keywords
enclosure
conductor
plug
loop
cable
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
GB2608772A
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.)
Salient Electronics Inc
Original Assignee
Salient Electronics Inc
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 Salient Electronics Inc filed Critical Salient Electronics Inc
Publication of GB1393125A publication Critical patent/GB1393125A/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
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1445—Mechanical actuation by lifting or attempted removal of hand-portable articles with detection of interference with a cable tethering an article, e.g. alarm activated by detecting detachment of article, breaking or stretching of cable
    • G08B13/1454—Circuit arrangements thereof
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • 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
    • G08B13/128—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room the housing being an electronic circuit unit, e.g. memory or CPU chip
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1445—Mechanical actuation by lifting or attempted removal of hand-portable articles with detection of interference with a cable tethering an article, e.g. alarm activated by detecting detachment of article, breaking or stretching of cable
    • G08B13/1463—Physical arrangements, e.g. housings
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems

Abstract

1393125 Intruder alarms SALIENT ELECTRONICS Inc 5 June 1972 [6 July 1971] 26087/72 Heading G4N An intruder alarm system of the type where a relay is normally energized via a completed series circuit and is de-energized when this circuit is broken, comprises a circuit portion 25 containing the usual battery and relay coil holding open a contact adapted to activate an alarm, not shown, upon closure, the portion being connected via the conductors 41, 42 of a cable 48 with a closed circuit loop contained in a box-like enclosure 1, the loop consisting of two frangible conductors 16, 17 and associated connections and being connected via a plug 43, 44 to the cable 48 through one end of the enclosure 1, the conductor 16 being enclosed and mounted as a coil on the internal surfaces of the enclosure whereas the conductor 17 is placed on the outside surface of the enclosure and lightly adhered thereto. In use, the surface containing the conductor 17 is adhered to an article which is desired to be protected such that any attempt at removal of the enclosure or at breaking it will result in breakage of the conductor 17 or 16 respectively. In a first modification, Fig. 3 (not shown) the enclosure 1 is adapted to have plug connectors inserted at both ends to act as a junction box and in a second modification, Fig. 7 (not shown) the cable 48 is taken into and passed out of the enclosure at the end remote from the plug to provide a physical closed loop when the plug is inserted which loop may be passed around an article to be protected.
GB2608772A 1971-07-06 1972-06-05 Connection devices for alarm systems Expired GB1393125A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15969771A 1971-07-06 1971-07-06

Publications (1)

Publication Number Publication Date
GB1393125A true GB1393125A (en) 1975-05-07

Family

ID=22573620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2608772A Expired GB1393125A (en) 1971-07-06 1972-06-05 Connection devices for alarm systems

Country Status (3)

Country Link
DE (1) DE2232833A1 (en)
FR (1) FR2144783B3 (en)
GB (1) GB1393125A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158979A (en) * 1984-03-21 1985-11-20 Andrew John George Alarm equipment
GB2170935A (en) * 1984-12-17 1986-08-13 Coltax Aerospace Limited Displacement indicators
GB2346727A (en) * 1999-02-15 2000-08-16 Martin Raymond Gregory Cable loop alarm system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158979A (en) * 1984-03-21 1985-11-20 Andrew John George Alarm equipment
GB2170935A (en) * 1984-12-17 1986-08-13 Coltax Aerospace Limited Displacement indicators
GB2346727A (en) * 1999-02-15 2000-08-16 Martin Raymond Gregory Cable loop alarm system

Also Published As

Publication number Publication date
DE2232833A1 (en) 1973-01-18
FR2144783A1 (en) 1973-02-16
FR2144783B3 (en) 1975-08-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees