Filter for liquids
AssigneeKabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft
InventorGerhard Ziemek
Life of this patent
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Abstract
The filter is constructed as a cylindrical or tapered body preferably having longitudinal grooves and ridges as flow channels, the body being made of thin metal, preferably gold plated nickel, to be self-supporting and having perforations to obtain a perviousness from 40 to 200 mesh (metric-DIN). A collar is affixed to suspend the filter in an opening. The filter material is preferably be made by electroplating.
Claims6
A beverage filter comprising a thin-walled body of hollow construction including a cylindrical or tapered hollow portion, being at least open to one side, the body having a wall and bottom structure, at least a portion thereof being made of thin metal foil and having apertures defining a sieve-like permeability in the range of from 40 metric mesh to 200 metric mesh;
- the cylindrical or tapered portion being provided with longitudinal grooves and ridges;
- and
- a collar, circumscribing the said filter portion and being connected to these ridges to leave flow space along said grooves.
Dependencies are inferred from the claim text.