(19)

(11)

EP 2 082 184 A1

(12)

(43) Date of publication: 29.07.2009 Bulletin 2009/31 (21) Application number: 06846887.5 (22) Date of filing: 30.10.2006

(51) International Patent Classification (IPC):  F42D 1/055(2006.01) (86) International application number: PCT/ZA2006/000123 (87) International publication number: WO 2008/055274 (08.05.2008 Gazette 2008/19)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (71) Applicant: Detnet South Africa (PTY) LTD 2196 Sandton (ZA)	(72) Inventors: LABUSCHAGNE, Albertus A. 2196 Sandton (ZA) KOEKEMOER, Andre 2196 Sandton (ZA) SCHLENTER, Craig Charles 2196 Sandton (ZA) (74) Representative: Patentanwälte Ruff, Wilhelm, Beier, Dauster & Partner  Postfach 10 40 36 70035 Stuttgart 70035 Stuttgart (DE)