Global Patent Index - EP 0877344 B1

EP 0877344 B1 2002-11-06 - Security fence consisting of conductive meshes

Title (en)

Security fence consisting of conductive meshes

Title (de)

Sicherheitszaun aus leitenden Gittern

Title (fr)

Clôture de sécurité de treillis conducteurs

Publication

EP 0877344 B1 (FR)

Application

EP 98460011 A

Priority

FR 9705686 A

Abstract (en)

[origin: EP0877344A1] The security fence consists of a trellis of conductors formed to allow signalling any attempt at breaking through by severing one of the sections of the fence. The fence is such that each trellis (20) consists of two grids (30,40) of the same shape which are assembled one on top of the other such that the mesh of the elements of one grid coincide with the mesh of the other grid elements. The grids are electrically isolated from each other and are held at specific voltage by electrical supply cables (50,50'). Each grid comprises vertical cables (31,41) and horizontal cables (32,42,42a) which are welded to the horizontal cables. The surfaces which do not have the welded horizontal cables are the surfaces which face each other.

IPC 1-7 (main, further and additional classification)

G08B 13/12

IPC 8 full level (invention and additional information)

G08B 13/12 (2006.01)

CPC (invention and additional information)

E04H 17/161 (2013.01); G08B 13/122 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

DOCDB simple family

EP 0877344 A1 19981111; EP 0877344 B1 20021106; AT 227456 T 20021115; DE 69809115 D1 20021212; DE 69809115 T2 20030710; ES 2185132 T3 20030416; FR 2762919 A1 19981106; FR 2762919 B1 19990806