Sideseam joint for a carton

Abstract

Unwanted adhesion between a second panel and a first panel attendant the formation of the sideseam joint is eliminated by providing the second panel with a notch. The notch corresponds in form to the triangular notch 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 occurs, there is no hot and sticky exposed area of the first panel which will adhere to the second panel.

1 . A blank for forming a container, comprising: 
 a first panel connected to a second panel along a first fold line, said second panel connected to a third panel along a second fold line, said third panel connected to a fourth panel along a third fold line, said fourth panel connected to a fifth panel along a fourth fold line,    a first, second, third and fourth closure panel connected to said first, second, third and fourth panels, respectively, by fold lines,    said second closure panel having a free edge opposite said fold line between said second panel and said second closure panels,    said third closure panel having a free edge opposite said fold line between said third panel and said third closure panels,    said fifth panel having a bottom edge extending upwardly from said fourth fold line, and    a notch in said free edge of said second panel, said notch formed by a first edge extending from said second closure panel free edge and a second edge extending upwardly from third closure panel free edge.    
   
   
       2 . The blank of  claim 1 , wherein 
 said second edge extends passed a fold line between said second closure panel and said third closure panel.    
   
   
       3 . The blank of  claim 1 , wherein 
 said blank is made of paperboard.    
   
   
       4 . A collapsed tube for forming a container, comprising: 
 a first closure panel connected to a second closure panel along a first fold line, said second closure panel connected to a third closure panel along a second fold line, said third closure panel connected to a fourth closure panel along a third fold line, said fourth closure panel connected to a fifth panel along a fourth fold line,    said fifth panel having a bottom edge extending upwardly from said fourth fold line, said fifth panel adhered to said first closure panel,    said second panel overlying said first panel,    an area of exposed adhesive on said first panel below said fifth panel, and    a notch in said second closure panel corresponding to the portion of said second closure panel overlying said area of exposed adhesive.    
   
   
       5 . The tube of  claim 4 , wherein 
 said area of exposed adhesive is triangular.    
   
   
       6 . The tube of  claim 4 , wherein 
 said notch is formed by a first edge and a second edge, said second edge overlying said fifth panel bottom edge.