Filter for the purification of tap water
OwnerErich Busch, Michael Buschinventors
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Abstract
A filter for the purification of tap water containing several layers of different filter materials. One of the layers is an adsorption filter element comprising a self-supporting sintered body of finely dispersed adsortion material, e.g., activated charcoal, a thermoplastic binder material and a finely dispersed, oligodynamic material, wherein these materials provide a fine-mesh, mechanical filter. The adsorption filter can also be used by itself for filtering purposes.
Claims16
A filter useful for the purification of tap water, having a filter housing, a plurality of layers of different filter materials disposed successively in the direction of flow for the purification of the tap water by mechanical filter action and comprising an ion-exchange material, adsorption in an adsorption material and at least one layer being formed by an adsorption filter element, wherein said adsorption filter element consists of a compressed, self-supporting, sintered body of finely dispersed adsorption material, a finely dispersed oligodynamic material and a thermoplastic binder material, wherein said binder material is polyethylene having a molecular weight in the range of 3 to 7.times.10.sup.6, in the form of particles having a nodular shape and exhibiting viscous elastic properties in a transitional temperature range during heating and being sufficiently sticky on the surface to form a bond with the particles present in the adsorption material, and said adsorption filter element being a mechanical, fine-mesh filter for said tap water.
Dependencies are inferred from the claim text.