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1. (IN8848/CHENP/2011) “IMPROVEMENTS TO PARTICLE DETECTORS”

Office : India
Application Number: 8848/CHENP/2011 Application Date: 30.11.2011
Publication Number: 8848/CHENP/2011 Publication Date: 17.05.2013
Publication Kind : A
Prior PCT appl.: Application Number:PCTAU2010000511 ; Publication Number: Click to see the data
IPC:
G08B 17/107
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
17
Fire alarms; Alarms responsive to explosion
10
Actuation by presence of smoke or gases
103
using a light emitting and receiving device
107
for detecting light-scattering due to smoke
Applicants: XTRALIS TECHNOLOGIES LTD
Inventors: Ron KNOX
Karl BOETTGER
AJAY  Kemal
Priority Data: 2009901922 01.05.2009 AU
2009901923 01.05.2009 AU
2009901924 01.05.2009 AU
2009901925 01.05.2009 AU
2009901926 01.05.2009 AU
2009901927 01.05.2009 AU
Title: (EN) “IMPROVEMENTS TO PARTICLE DETECTORS”
Abstract:
(EN) A beam detector (10) including a light source (32)  a receiver (34)  and a target (36)  acting in co-operation to detect particles in a monitored area (38). The target (36)  reflects incident light (40)  resulting in reflected light (32) being returned to receiver (34). The receiver (34) is a receiver is capable of recording and reporting light intensity at a plurality of points across its field of view. In the preferred form the detector (10) emits a first light beam (3614) in a first wavelength band; a second light beam (3618) in a second wavelength band; and a third light beam (3616) in a third wavelength band  wherein the first and second wavelengths bands are substantially equal and are different to the third wavelength band.
Also published as:
EP2425411US20120140231JP2012525564CN102460527CA2760026KR1020120034633
AU2010242552MYPI 2011005239KR1020170049631KR1020180061410WO/2010/124347