Container lid

Abstract

Thermoformed plastic container lid comprising a substantially sheet like lid body having a depending skirt ( 1 ) extending around the full periphery of the lid body, the skirt ( 1 ) being suitable for engagement with the peripheral portion of a plastic open top container, comprising a lid rim ( 2 ) in a position near the periphery of the lid body, which divides the lid body in a centrally located mirror ( 3 ) and an outer part ( 4 ) on the other side of the lid rim ( 2 ), wherein the lid rim ( 2 ) comprises one or more bridges ( 5 ) connecting the mirror ( 3 ) and the outer part ( 4 ).

1 . Thermoformed plastic container lid comprising a substantially sheet like lid body having a depending skirt ( 1 ) extending around the full periphery of the lid body, the skirt ( 1 ) being suitable for engagement with the peripheral portion of a plastic open top container, comprising a lid rim ( 2 ) in a position near the periphery of the lid body, which divides the lid body in a centrally located mirror ( 3 ) and an outer part ( 4 ) on the other side of the lid rim ( 2 ), characterised in that the lid rim ( 2 ) comprises one or more bridges ( 5 ) connecting the mirror ( 3 ) and the outer part ( 4 ).  
   
   
       2 . Container lid according to  claim 1 , wherein the one or more bridges ( 5 ) are in the same plane as the mirror ( 3 ).  
   
   
       3 . Container lid according to  claim 1 , wherein the bridge is a partial bridge consisting of two bridge parts ( 9 , 10 ), each being an indentation of a side wall of the lid rim ( 2 ).  
   
   
       4 . Container lid according to  claim 3 , wherein the indentation is formed by placing part of the side wall at a negative angle, compared to the side wall at a place where there is no bridge.  
   
   
       5 . Container lid according to  claim 1 , comprising four or more bridges ( 5 ).  
   
   
       6 . Container lid according to  claim 5 , comprising six or more bridges ( 5 ).  
   
   
       7 . Container lid according to  claim 1 , wherein the bridges ( 5 ) are distributed evenly around the periphery of the lid.  
   
   
       8 . Container lid according to  claim 1 , comprising an uneven number of bridges ( 5 ).  
   
   
       9 . Container lid according to  claim 1 , wherein the width of the bridges ( 5 ) is 3 mm or more.