Global Patent Index - EP 2365855 A1

EP 2365855 A1 20110921 - METHOD AND APPARATUS FOR CARRYING OUT INTEGRITY TESTS

Title (en)

METHOD AND APPARATUS FOR CARRYING OUT INTEGRITY TESTS

Title (de)

VERFAHREN UND VORRICHTUNG ZUR DURCHFÜHRUNG VON INTEGRITÄTSTESTS

Title (fr)

PROCÉDÉ ET DISPOSITIF EN VUE DE L'EXÉCUTION D'UN TEST D'INTÉGRITÉ

Publication

EP 2365855 A1 20110921 (DE)

Application

EP 09752102 A 20091021

Priority

  • EP 2009007529 W 20091021
  • DE 102008057458 A 20081114

Abstract (en)

[origin: WO2010054740A1] The invention relates to a method and an apparatus for carrying out integrity tests of at least one filter element which is arranged within a filter housing and comprises porous filter materials, in which means for acoustic measurement of sound generated by a test fluid on flowing through the filter element are provided. The method comprises the steps: a) exposure of a first side of the filter materials of the filter element to a test fluid while maintaining a constant fluid pressure, b) measurement of the sound produced by the test fluid flowing through the filter materials and/or the vibration by means of sensors and c) comparison of the sound measured in step b) and/or the vibration with the sound measured under identical conditions and/or the vibration of an integral identical filter element.

IPC 8 full level

B01D 46/44 (2006.01); G01M 3/24 (2006.01)

CPC (source: EP US)

B01D 46/0086 (2013.01 - EP US); B01D 46/2407 (2013.01 - EP); B01D 46/44 (2013.01 - EP); B01D 46/2407 (2013.01 - US); B01D 46/44 (2013.01 - US); B01D 2273/18 (2013.01 - EP US); B01D 2273/24 (2013.01 - EP US); G01N 2015/084 (2013.01 - EP US)

Citation (search report)

See references of WO 2010054740A1

Citation (examination)

Designated contracting state (EPC)

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 SE SI SK SM TR

DOCDB simple family (publication)

DE 102008057458 A1 20100520; DE 102008057458 B4 20120426; EP 2365855 A1 20110921; US 2011214485 A1 20110908; US 9072996 B2 20150707; WO 2010054740 A1 20100520

DOCDB simple family (application)

DE 102008057458 A 20081114; EP 09752102 A 20091021; EP 2009007529 W 20091021; US 200913128702 A 20091021