ES8405980A1 - Antitheft alarm device e.g. for suitcase - Google Patents

Antitheft alarm device e.g. for suitcase

Info

Publication number
ES8405980A1
ES8405980A1 ES518436A ES518436A ES8405980A1 ES 8405980 A1 ES8405980 A1 ES 8405980A1 ES 518436 A ES518436 A ES 518436A ES 518436 A ES518436 A ES 518436A ES 8405980 A1 ES8405980 A1 ES 8405980A1
Authority
ES
Spain
Prior art keywords
switches
movement
conductive sphere
response
cause
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
ES518436A
Other languages
Spanish (es)
Other versions
ES518436A0 (en
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 ES518436A priority Critical patent/ES8405980A1/en
Priority to EP83101777A priority patent/EP0098913A2/en
Publication of ES518436A0 publication Critical patent/ES518436A0/en
Publication of ES8405980A1 publication Critical patent/ES8405980A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Burglar Alarm Systems (AREA)

Abstract

EP--98913 A (+22.3.82, 13.4.82, 23.8.82 (2), 14.10.82, 7.12.82, 15.12.82, 21.12.82 (3) 24.12.82 (2) -ES- 510664, 511397, 515186, 515187, 516506, 518012 518238, 518343 (5) (6), 518567, 518568) The device is disposed on or in an object to the protected and the conductive sphere is caused to be positioned in a given zone (D1) where it causes closure of either switch of a pair of switches but not both switches simultaneously. The interval between the intants of closure of the two switches represents the amplitude and rapidity of movement of the object. Slight displacements or vibrations will not cause both switches to close due to the distance separating them but sudden violent displacements caused by a bag being snatched will cause an alarm. - The switches may be constituted by interdigitated printed conductors on a circuit board, the spacing between the conductors being such as to allow them to be bridged by the conductive sphere. Various forms of electronic monitoring circuit are described to trigger an alarm device in response to the two switches being closed in response to violent movement of the conductive sphere, using bistable circuits. The path has zones of differing curvature to provide a variation of the movement sensitivity. (4/55)
ES518436A 1982-02-23 1982-12-21 Antitheft alarm device e.g. for suitcase Expired ES8405980A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES518436A ES8405980A1 (en) 1982-12-21 1982-12-21 Antitheft alarm device e.g. for suitcase
EP83101777A EP0098913A2 (en) 1982-02-23 1983-02-23 Movement sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES518436A ES8405980A1 (en) 1982-12-21 1982-12-21 Antitheft alarm device e.g. for suitcase

Publications (2)

Publication Number Publication Date
ES518436A0 ES518436A0 (en) 1984-01-16
ES8405980A1 true ES8405980A1 (en) 1984-01-16

Family

ID=8485119

Family Applications (1)

Application Number Title Priority Date Filing Date
ES518436A Expired ES8405980A1 (en) 1982-02-23 1982-12-21 Antitheft alarm device e.g. for suitcase

Country Status (1)

Country Link
ES (1) ES8405980A1 (en)

Also Published As

Publication number Publication date
ES518436A0 (en) 1984-01-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001