Sideseam joint for a carton

Abstract

According to the practice of this invention, the noted unwanted adhesion between the second panel and the first panel attendant the formation of the sideseam joint is eliminated by providing the second panel with a cutout. That portion which is cut out corresponds in form to the triangular cutout or truncated portion at the tapered end of the sideseam forming fifth panel. In this way, when compression of the first panel against the sideseam panel and the first panel occurs, there is no hot and sticky exposed area of the first panel which will adhere to the second panel.

What is claimed is:  
     
         1 . A paperboard blank for forming a container, comprising: 
 a first, second, third, fourth and fifth panel serially connected along fold lines,    said fifth panel adapted to overlap said first panel to form a carton sideseam,    said fifth panel truncated at one end, and    a cut out in one end of said second panel.    
     
     
         2 . The paperboard blank of  claim 1 , wherein said cut out has a shape corresponding to the shape of the fifth panel truncation.  
     
     
         3 . The paperboard blank of  claim 1 , wherein said cut out is triangular.  
     
     
         4 . The paperboard blank of  claim 1 , wherein said cut out extends into said third panel.  
     
     
         5 . A tubular structure for forming a container, comprising: 
 a first, second, third, fourth and fifth panel serially connected along fold lines,    said fifth panel overlapping said first panel to form a carton sideseam,    said fifth panel truncated at one end, and    a cut out in one end of said second panel.    
     
     
         6 . The tubular structure of  claim 5 , wherein said cut out has a shape corresponding to the shape of the fifth panel truncation.  
     
     
         7 . The tubular structure of  claim 5 , wherein said cut out is triangular.  
     
     
         8 . The tubular structure of  claim 5 , wherein said cut out extends into said third panel.