EP 2958652 A4 20170222 - MULTI-LAYERED FILTER MEDIA
Title (en)
MULTI-LAYERED FILTER MEDIA
Title (de)
MEHRSCHICHTIGE FILTERMEDIEN
Title (fr)
MILIEUX DE FILTRATION MULTI-COUCHES
Publication
Application
Priority
- US 201313775420 A 20130225
- US 2014017979 W 20140224
Abstract (en)
[origin: WO2014130933A1] 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 29/50 (2006.01); B01D 39/16 (2006.01); B01D 39/18 (2006.01)
CPC (source: EP)
B01D 39/163 (2013.01); B01D 39/18 (2013.01); B01D 39/2017 (2013.01); B01D 2239/0622 (2013.01); B01D 2239/086 (2013.01); B01D 2239/1216 (2013.01); B01D 2239/1258 (2013.01); B01D 2275/10 (2013.01)
Citation (search report)
- [I] US 2009120048 A1 20090514 - WERTZ JOHN A [US], et al
- [A] US 8172092 B2 20120508 - GREEN THOMAS B [US], et al
- [A] US 2011168622 A1 20110714 - LUCAS DANIEL [US]
- [A] US 2013001155 A1 20130103 - NEUBAUER SEBASTIAN [DE], et al
- [A] US 2011259813 A1 20111027 - WERTZ JOHN A [US], et al
- See references of WO 2014130933A1
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 2014130933 A1 20140828; CN 105102097 A 20151125; CN 105102097 B 20171031; EP 2958652 A1 20151230; EP 2958652 A4 20170222; EP 3738659 A1 20201118
DOCDB simple family (application)
US 2014017979 W 20140224; CN 201480018520 A 20140224; EP 14754942 A 20140224; EP 20177411 A 20140224