Single-use sink strainer

Abstract

A disposable strainer is provided for drain holes such as in sinks, bathtubs and floor drain holes. The strainer is relatively thin and has wide edges relative to currently existing strainers. The strainer includes a perforated, concave middle part. The middle part of the strainer is attached to the strainer's edges by means of a circumferential rim that can be stretched and enables to pull the middle part downwards to create a concavity into which the waste accumulates. The strainer is made from a flexible material, which can be folded and which adheres to the sink or floor upon contact with water.

1 . A system comprising:
 a sink or bathtub having a surface and a hole, and   a thin removable strainer positioned on the hole, the thin removable strainer having:   
       a middle part with perforations and an edge, wherein the middle part fits into the hole, 
       and the edge extends to the surface of the sink or bathtub, 
       and wherein the edge is thin and made from a flexible, water-proof polymeric material that does not lose mechanical strength when wettened, and adheres to the sink or bathtub surface upon contact with water. 
     
     
         2 . The system of  claim 1 , wherein said perforated middle portion is concave. 
     
     
         3 . The system of  claim 1 , wherein said disposable strainer is capable of being printed upon. 
     
     
         4 . The system of  claim 1 , wherein the edge has a width sufficient to prevent garbage on the strainer or on the sink surface adjacent to the strainer from falling into the sink hole when the strainer is removed from the sink. 
     
     
         5 . A disposable strainer to be used on a drain hole in a surface of a sink or a bathtub, the disposable strainer comprising:
 a perforated middle part substantially corresponding to the drain hole; and   a circumferential edge, wide and thin enough to cause a portion of the circumferential edge to adhere to the surface when the surface is wet.   
     
     
         6 . The disposable strainer of  claim 5 , wherein said perforated middle portion is concave. 
     
     
         7 . The disposable strainer of  claim 5 , wherein said disposable strainer is capable of being printed upon. 
     
     
         8 . The disposable strainer of  claim 5 , wherein said circumferential edge is wide enough to be in contact with the surface beyond the drain hole. 
     
     
         9 . The disposable strainer of  claim 5 , wherein the surface, from which the drain hole drains water and waste, is a part of a sink, bathtub, or floor. 
     
     
         10 . The disposable strainer of  claim 5 , wherein said perforated middle part can be stretched downwardly and into the drain hole.