EP 0882223 A4 19990107 -
Publication
Application
Priority
- US 9720047 W 19971103
- US 74355496 A 19961104
- US 74355596 A 19961104
Abstract (en)
[origin: WO9820320A1] Devices (100) and methods for measuring the concentration of airbone fibers are provided. The devices include flow means (5 and 6) for providing laminar flow to a portion of the fibers (20) in an air sample and a light source (9) for generating a light beam (12) directed to the laminarly flowing fibers (20) to produce a scattered light. The device further includes a sensor (14) for sensing a portion of this scattered light and producing an output from which a respirable fiber concentration estimate can be measured.
IPC 1-7
IPC 8 full level
G01N 15/06 (2006.01); G01N 15/02 (2006.01); G01N 21/53 (2006.01); G01N 15/00 (2006.01)
CPC (source: EP KR)
G01N 15/02 (2013.01 - KR); G01N 15/0205 (2013.01 - EP); G01N 21/00 (2013.01 - KR); G01N 15/06 (2013.01 - EP); G01N 2015/0049 (2013.01 - EP)
Citation (search report)
- [XY] US 3740148 A 19730619 - MOROZ W, et al
- [XY] US 4940327 A 19900710 - LILIENFELD PEDRO [US]
- [YA] US 4249244 A 19810203 - SHOFNER FREDERICK M, et al
- See also references of WO 9820320A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IE IT LI NL SE
DOCDB simple family (publication)
WO 9820320 A1 19980514; AU 5165898 A 19980529; AU 736174 B2 20010726; BR 9706914 A 20000104; CA 2239857 A1 19980514; CZ 188098 A3 19981111; EP 0882223 A1 19981209; EP 0882223 A4 19990107; HU P0001651 A2 20000928; HU P0001651 A3 20030128; JP 2000503405 A 20000321; KR 19990072187 A 19990927; NO 983075 D0 19980702; NO 983075 L 19980828; PL 327503 A1 19981221; TR 199801215 T1 19990222
DOCDB simple family (application)
US 9720047 W 19971103; AU 5165898 A 19971103; BR 9706914 A 19971103; CA 2239857 A 19971103; CZ 188098 A 19971103; EP 97946502 A 19971103; HU P0001651 A 19971103; JP 52168998 A 19971103; KR 19980704548 A 19980617; NO 983075 A 19980702; PL 32750397 A 19971103; TR 9801215 T 19970311