Beverage Filter Cartridge

Abstract

A beverage filter cartridge includes an inner cup made of filter paper and defining a first chamber, an outer cup holding the inner cup in a second chamber therein, and a seal film bonded to the outer cup to seal the inner cup in the outer cup. The inner cup has a hard rim extending around the top open side thereof and supportable at an inner upper part of the outer cup to suspend the inner cup in the second open chamber of the outer cup. After removal of the seal film, the plastic outer cup can be recycled, reducing environmental pollution and implementing the principles of environmental protection.

What is claimed is: 
     
         1 . A beverage filter cartridge, comprising:
 an outer cup made of plastics, said outer cup defining a second chamber and a rim around a top open side of said second chamber;   an inner cup made of filter paper and suspended in said outer cup in such a manner that an inside space is defined within said outer cup around the outer perimeter of said inner cup, said inner cup defining therein a first chamber; and   a seal film bonded to the rim of said outer cup to seal said inner cup inside said outer cup;   wherein:   said inner cup comprises a hard rim bonded to a top side thereof and stoppable at an inner upper part of said outer cup to suspend said inner cup in said second chamber of said outer cup.   
     
     
         2 . The beverage filter cartridge as claimed in  claim 1 , wherein said outer cup defines a tapered inner surface surrounding said second chamber, said tapered inner surface having an inner diameter gradually reducing in direction from the rim of said outer cup to a bottom wall of said outer cup for supporting said hard rim of said inner cup in a suspended status. 
     
     
         3 . The beverage filter cartridge as claimed in  claim 1 , wherein said outer cup defines an inside annular step inside said second chamber and near the rim of said outer cup for supporting said hard rim of said inner cup inside said outer cup.