EP 0855931 A4 20000223 - SELF-CLEANING FLUID FILTER UNIT
Title (en)
SELF-CLEANING FLUID FILTER UNIT
Title (de)
SELBSTREINIGENDE EINHEIT ZUR FILTRATION VON FLÜSSIGKEITEN
Title (fr)
UNITE AUTO-NETTOYANTE DE FILTRAGE DE FLUIDES
Publication
Application
Priority
- US 9613822 W 19960829
- US 290495 P 19950829
Abstract (en)
[origin: WO9707869A1] A high volume, self-cleaning filter unit (10) includes at least one cage support (18) with a downwardly angled surface having a direct path filter media (12) sealed thereto, with a suction source (14) to extract filtered fluid from the interior of the cage support (18). During operation of the filtering, particulates clog the filter media (12), and a backwashing (16) is effected by either backflushing with air or the fluid being filtered. Extremely high volumes of fluid can be filtered to a high degree, generally on the order of a few microns, in one step with a very economical filter unit (10). The downwardly angled surface holds the filter media (12) in such a position that a small mesh filter cloth is filtering a nominal size of particles out of the fluid. Oil is rejected by the filter unit (10) at a high rate, making this an effective oil/water separator as well.
IPC 1-7
B01D 24/08; B01D 24/44; B01D 29/05; B01D 29/15; B01D 29/68; B01D 29/86; B01D 35/02; B01D 35/05; B01D 35/31; B01D 35/22; B01D 29/01
IPC 8 full level
B01D 29/01 (2006.01); B01D 35/05 (2006.01)
CPC (source: EP)
B01D 29/01 (2013.01); B01D 29/114 (2013.01); B01D 29/52 (2013.01); B01D 29/66 (2013.01); B01D 29/86 (2013.01); B01D 35/05 (2013.01); B01D 35/12 (2013.01); B01D 2201/02 (2013.01)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9707869A1
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
WO 9707869 A1 19970306; EP 0855931 A1 19980805; EP 0855931 A4 20000223
DOCDB simple family (application)
US 9613822 W 19960829; EP 96930617 A 19960829