Purifying device for liquid
AssigneeAalto Filtration Oy
InventorsKari Aalto, Valery Antipov, Alexander Melnikov
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Abstract
The invention relates to a purifying device for liquid, that has filtering means (1) in order to separate impurities in the liquid to be treated by mechanical filtration and purifying means (2), such as an activated carbon element or like, in order to eliminate impurities in the liquid to be treated by absorption or correspondingly, which means (1, 2) are arranged essentially built-in therein. The mechanical filtering means (1) are carried out by a thin filtering film (1a) made of plastic based material, such as PTM (Particle Track Membrane), TeM (Track-edge Membrane) or like, the porosity of which is 5-15%, the thickness preferably 10-25 μm and the size of pores 0,5 μm at its height.
Claims11
A purifying device for liquid comprising:
- a housing having a top wall, a bottom wall, a generally cylindrical side wall, and an inlet and an outlet defining a fluid flow path between the inlet and the outlet;
- liquid filtration means disposed in said housing between said inlet and outlet and in said fluid flow path, wherein said filtration means comprise:
- an activated carbon cylinder having an axial lumen defined therein, and
- a film made of a plastic based membrane filter material, said film covering the outer surface of said carbon cylinder, wherein a strengthening layer is laminated to at least one side surface of said film, and wherein said flow path directs a fluid flow sequentially through said membrane then radially through said carbon cylinder to said lumen.
Dependencies are inferred from the claim text.