Environmental friendly paper cup lid

Abstract

The present invention is an environmental friendly paper cup lid which is made integrally of botanic fiber pulp, and is used to overcome the defect that the conventional disposable paper cup lids made of plastic that is less environmental friendly, the paper cup lid has a covering lid which is extended downwards from the totally surrounding periphery on its top and is extended outwards to form a continuous circling wall; when in use, the paper cup lid can be directly engaged in the opening of the cup, and by that the sealed circling wall is abutted and leaned on the inner periphery of the opening of the cup to avoid dropping down of the paper cup cover; and can overcome the defect that the conventional techniques make the paper cup lid tend to be jammed on a curved rim on the upper outer periphery of the opening of the cup.

What is claimed is: 
     
         1 . An environmentally friendly paper cup lid adapted to obstruct an upper opening of a paper cup, said covering lid extending downwards from a totally surrounding periphery of the lid from a top thereof and extending outwards to form a continuous circling wall, a bottom end of said continuous circling wall turned upwards to extend outwards to form a sealed circling wall to abut against an inner periphery of said opening, a top end of said sealed circling wall extending outwardly to form a stop portion lapping and jointing with a curved rim on a periphery of said opening; said sealed circling wall elastically biased towards an outer direction, said paper cup lid adapted to avoid dropping down off said paper cup after said paper cup lid is directly engaged in said opening. 
     
     
         2 . The environmentally friendly paper cup lid as claimed in  claim 1 , wherein said continuous circling wall is provided thereon with a plurality of dented portions for exerting force by a user. 
     
     
         3 . The environmentally friendly paper cup lid as claimed in  claim 2 , wherein said stop portion is in a circle shape, and surrounds a totally surrounding periphery of a top end of said sealed circling wall. 
     
     
         4 . The environmentally friendly paper cup lid as claimed in  claim 2 , wherein said stop portion in a circle shape has thereon a a plurality of recesses alternately arrayed on said top end of said sealed circling wall. 
     
     
         5 . The environmental friendly paper cup lid as claimed in  claim 2 , wherein said top of said covering lid is provided a protruding obscuring sheet, said obscuring sheet is provided at a periphery thereof with a plurality of perforations, wherein when said obscuring sheet is bent rearwards along said perforations, an opening for drinking for a user is formed on said top of said covering lid. 
     
     
         6 . The environmentally friendly paper cup lid as claimed in  claim 5 , wherein said top of said covering lid is provided behind said obscuring sheet with a depression to allow said obscuring sheet to be bent rearwards and engage with the depression. 
     
     
         7 . The environmentally friendly paper cup lid as claimed in  claim 6 , wherein said top of said covering lid is provided with an air hole. 
     
     
         8 . The environmentally friendly paper cup lid as claimed in  claim 1 , wherein said stop portion further comprises at least a lifting ear for a user to exert a force to lift and open said paper cup cover. 
     
     
         9 . The environmentally friendly paper cup lid as claimed in  claim 8 , wherein said stop portion is in a circular shape, and surrounds a totally surrounding periphery of a top end of said sealed circling wall. 
     
     
         10 . The environmentally friendly paper cup lid as claimed in  claim 8 , wherein said stop portion in a circular shape has thereon a plurality of recesses alternately arrayed on said top end of said sealed circling wall. 
     
     
         11 . The environmentally friendly paper cup lid as claimed in  claim 8 , wherein said top of said covering lid comprises a protruding obscuring sheet, said obscuring sheet comprising a plurality of perforations, wherein when said obscuring sheet is rearwards along said perforations, an opening for drinking for a user is formed on said top of said covering lid. 
     
     
         12 . The environmentally friendly paper cup lid as claimed in  claim 11 , wherein said top of said covering lid is provided behind said obscuring sheet with a depression to allow said obscuring sheet to be bent rearwards and engage with the depression. 
     
     
         13 . The environmentally friendly paper cup lid as claimed in  claim 11 , wherein said top of said covering lid is provided with an air hole. 
     
     
         14 . The environmentally friendly paper cup lid as claimed in  claim 1 , wherein said stop portion is in a circular shape, and surrounds a totally surrounding periphery of a top end of said sealed circling wall. 
     
     
         15 . The environmentally friendly paper cup lid as claimed in  claim 1 , wherein said stop portion in a circular shape has thereon a plurality of recesses alternately arrayed on said top end of said sealed circling wall. 
     
     
         16 . The environmentally friendly paper cup lid as claimed in  claim 1 , wherein said top of said covering lid includes a protruding obscuring sheet, said obscuring sheet is provided at its periphery with a plurality of perforations, wherein when said obscuring sheet is bent rearwards along said perforations, an opening for drinking for a user is formed on said top of said covering lid. 
     
     
         17 . The environmentally friendly paper cup lid as claimed in  claim 16 , wherein said top of said covering lid is provided behind said obscuring sheet with a depression to allow said obscuring sheet to be bent rearwards and engage with the depression. 
     
     
         18 . The environmentally friendly paper cup lid as claimed in  claim 16 , wherein said top of said covering lid is provided with an air hole.