(19)
(11) EP 1 810 259 A1

(12)

(43) Date of publication:
25.07.2007 Bulletin 2007/30

(21) Application number: 04796854.0

(22) Date of filing: 29.10.2004
(51) International Patent Classification (IPC): 
G08B 17/103(2006.01)
G08B 17/107(2006.01)
(86) International application number:
PCT/US2004/036220
(87) International publication number:
WO 2006/049613 (11.05.2006 Gazette 2006/19)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

(71) Applicant: SIMPLEXGRINNELL LP
Westminster, MA 01441-0001 (US)

(72) Inventor:
  • QUALEY, James, R., III
    Rindge, NH 03461-3457 (US)

(74) Representative: Pratt, David Martin et al
Withers & Rogers LLP Goldings House, 2 Hays Lane
London SE1 2HW
London SE1 2HW (GB)

   


(54) MULTIWAVELENGTH SMOKE DETECTOR USING WHITE LIGHT LED