28847 ⎘
Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being clamped between pervious fixed walls the filtering material being held in a flexible porous bag
In-Pipe Stormwater Treatment Unit Best Management Practice (I-STUB)
#2VARIABLE-POROSITY FILTERING APPARATUS HAVING COMPRESSIBLE FILTERING MEDIUM
#3Media purification devices having intergral flow controllers
#4SECONDARY TUBULAR COMPOSITE FILTER SOCK SEAM FILLING DEVICE AND METHOD OF USING SAME AND COMPOSITE FILTER SOCK ASSEMBLY INCORPORATING A SEAM FILLING DEVICE
#5Contaminant extraction in a borehole
#6Method of forming a compost filter sock
#7Composite filter sock anchors, compost filter sock assemblies and method of forming same
#8Secondary tubular composite filter sock seam filling device and method of using same and composite filter sock assembly incorporating a seam filling device
#9Media purification devices having integral flow controllers
#10Waste water diffuser
#11Damping plate sand filtration system and wave energy water desalination system and methods of using potable water produced by wave energy desalination
#12Synthetic compressible medium filter backwash processes
#13Method of manufacturing a compost filter sock that is linearly stable during filling
#14Modular sand filtration-anchor system and wave energy water desalination system and methods of using potable water produced by wave energy desalination
#15Fluid treatment apparatus including granular treatment medium
#16Filter assembly with locking cover
#17Modular sand filtration—anchor system and wave energy water desalination system incorporating the same
#18Modular sand filtration-anchor system and wave energy water desalinization system incorporating the same
#19Fluid filter
#20Exchangeable media filter
#21Exchangeable media filter
#22Integrated grommet filter
#23Assembly for treating flowing water