EP 2507614 A4 20170816 - DUST COLLECTING AND ANALYSING APPARATUS AND METHOD FOR DETERMINING THE SIZE AND MASS OF PARTICLES DETACHING FROM FIBROUS MATERIAL
Title (en)
DUST COLLECTING AND ANALYSING APPARATUS AND METHOD FOR DETERMINING THE SIZE AND MASS OF PARTICLES DETACHING FROM FIBROUS MATERIAL
Title (de)
VORRICHTUNG ZUR STAUBSAMMLUNG UND -ANALYSE SOWIE VERFAHREN ZUR BESTIMMUNG DER GRÖSSE UND MASSE VON VON EINEM FASERMATERIAL ABGELÖSTEN PARTIKELN
Title (fr)
APPAREIL DE PRÉLÈVEMENT ET D'ANALYSE DE POUSSIÈRE ET PROCÉDÉ POUR LA DÉTERMINATION DE LA TAILLE ET DE LA MASSE DE PARTICULES SE DÉTACHANT DE MATÉRIAU FIBREUX
Publication
Application
Priority
- FI 20096267 A 20091130
- FI 2010050976 W 20101129
Abstract (en)
[origin: WO2011064459A1] The invention relates to a dust collecting and analysing apparatus for deter mining the size and mass of particles detaching from fibrous material, such as paper or board webs or sheets. The apparatus comprises means (1) for controllably detaching dust from the surface of the material (11) being examined and means (14, 8) for leading the detached material (12) into a virtual impactor (15), where the detached dust is separated into fine material and coarse material, which are led to a fine material measuring apparatus (2) and a coarse material measuring apparatus (3), respectively, and the results obtained from the measuring apparatuses are combined in an analyser (5). The invention also comprises a method for determining the size and mass of particles detaching from fibrous material, such as paper or board webs or sheets.
IPC 8 full level
G01N 15/02 (2006.01); G01N 1/02 (2006.01); G01N 1/22 (2006.01); G01N 15/00 (2006.01); G01N 33/34 (2006.01)
CPC (source: EP FI)
G01N 1/2208 (2013.01 - EP FI); G01N 15/0205 (2013.01 - FI); G01N 15/0211 (2013.01 - EP FI); G01N 15/0227 (2013.01 - EP FI); G01N 15/0255 (2013.01 - EP FI); G01N 33/34 (2013.01 - FI); G01N 2001/028 (2013.01 - EP); G01N 2015/0096 (2013.01 - EP); G01N 2015/0261 (2013.01 - EP)
Citation (search report)
- [Y] US 2007092976 A1 20070426 - WATSON JOHN G [US], et al
- [Y] US 6311550 B1 20011106 - LEHMIKANGAS KEIJO [FI], et al
- [A] US 6010593 A 20000104 - EYMIN PETOT TOURTOLLET GUY [FR], et al
- [A] WO 2009138566 A1 20091119 - METSO AUTOMATION OY [FI], et al
- [Y] DE 3737129 A1 19890511 - FRAUNHOFER GES FORSCHUNG [DE]
- [A] US 6938777 B2 20050906 - CALL CHARLES J [US], et al
- See references of WO 2011064459A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011064459 A1 20110603; EP 2507614 A1 20121010; EP 2507614 A4 20170816; FI 124022 B 20140214; FI 20096267 A0 20091130; FI 20096267 A 20110531
DOCDB simple family (application)
FI 2010050976 W 20101129; EP 10832706 A 20101129; FI 20096267 A 20091130