EP 3142774 A4 20171206 - PRE-COALESCING MULTI-LAYERED FILTER MEDIA
Title (en)
PRE-COALESCING MULTI-LAYERED FILTER MEDIA
Title (de)
MEHRSCHICHTIGE PRÄKOALESZENZFILTERMEDIEN
Title (fr)
MATÉRIAU FILTRANT MULTICOUCHE PRÉ-COALESCENT
Publication
Application
Priority
- US 201414279180 A 20140515
- US 2015030955 W 20150515
Abstract (en)
[origin: WO2015175869A1] Fiber webs that may be used as filter media are provided. In some embodiments, the filter media may include multiple layers. Each layer may be designed to have separate functions in the filter media. For example, a first layer may be provided for improving dust holding capacity, a second layer for improving efficiency, and a third layer for providing support and strength to the media. By designing the layers to have separate functions, each layer may be optimized to enhance its function without negatively impacting the performance of another layer of the media.
IPC 8 full level
B01D 59/50 (2006.01); B01D 39/16 (2006.01); B01D 39/18 (2006.01); B01D 39/20 (2006.01)
CPC (source: EP)
B01D 39/1623 (2013.01); B01D 39/18 (2013.01); B01D 39/2017 (2013.01); B01D 2239/0421 (2013.01); B01D 2239/0428 (2013.01); B01D 2239/0622 (2013.01); B01D 2239/065 (2013.01); B01D 2239/1216 (2013.01); B01D 2239/1233 (2013.01)
Citation (search report)
- [XYI] US 2011168647 A1 20110714 - WIECZOREK MARK T [US], et al
- [Y] WO 2010042706 A1 20100415 - CUMMINS FILTRATION IP INC [US], et al
- [A] US 2014110354 A1 20140424 - HABERKAMP WILLIAM C [US], et al
- [A] WO 2013103765 A1 20130711 - UNIV NORTH CAROLINA STATE [US]
- See references of WO 2015175869A1
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 2015175869 A1 20151119; CN 106457148 A 20170222; CN 111939678 A 20201117; EP 3142774 A1 20170322; EP 3142774 A4 20171206
DOCDB simple family (application)
US 2015030955 W 20150515; CN 201580034256 A 20150515; CN 202010703076 A 20150515; EP 15792367 A 20150515