Container having upper rim with improved seal

Abstract

A paperboard container is provided for receiving a sealed lid. The container includes a bottom panel, a sidewall, and an upper rim. The sidewall extends upward from the bottom panel to define an interior of the container. The upper rim extends outward from the sidewall. The upper rim includes an overlapping seam having a first overlapping portion and a second overlapping portion. The first overlapping portion of the upper rim wraps around the second overlapping portion. The first overlapping portion includes a bonding tape positioned on an inner surface and an outer surface thereof. The first overlapping portion includes a corner cut defining at least a portion of an outer edge of the first overlapping portion.

What is claimed is: 
     
         1 . A paperboard container for receiving a sealed lid, the paperboard container comprising:
 a sidewall construct comprising a perimeter sidewall and an overlapping seam extending the height of the sidewall construct, wherein the overlapping seam comprises a first overlapping portion and a second overlapping portion;   an upper rim formed into an upper end of the sidewall construct and extending outwardly from the perimeter sidewall, the upper rim including at least a portion of the overlapping seam; and   a bonding tape located on the first overlapping portion;   wherein an upper end of the first overlapping portion includes a corner cut; and   wherein the bonding tape extends into a cutout region defined by the corner cut.   
     
     
         2 . The paperboard container of  claim 1 , wherein the bonding tape comprises a first tape portion located on an inner surface of the first overlapping portion and a second tape portion located on an exterior surface of the first overlapping portion. 
     
     
         3 . The paperboard container of  claim 1 , wherein the upper rim extends away from the perimeter sidewall generally horizontally. 
     
     
         4 . The paperboard container of  claim 1 , wherein the upper rim includes a top rim portion extending from the perimeter sidewall and a lower rim portion positioned directly below the top rim portion. 
     
     
         5 . The paperboard container of  claim 1 , wherein the upper rim includes a top rim portion extending from the perimeter sidewall, a lower rim portion positioned below the top rim portion, and an intermediate rim portion positioned between the top rim portion and the lower rim portion. 
     
     
         6 . The paperboard container of  claim 5 , wherein the top rim portion is connected to the lower rim portion by a first reverse bend fold and the intermediate rim portion is connected to the lower rim portion by a second reverse bend fold. 
     
     
         7 . The paperboard container of  claim 1 , wherein the first overlapping portion includes a first surface and a second surface opposite the first surface, and wherein the bonding tape is located on both the first surface and the second surface. 
     
     
         8 . The paperboard container of  claim 1 , wherein the upper rim at the overlapping seam comprises a first rim portion and a second rim portion, wherein the first rim portion at least partially overlaps the second rim portion, and wherein the corner cut of the first overlapping portion is located on the first rim portion. 
     
     
         9 . The paperboard container of  claim 8 , wherein the bonding tape includes a triangular tape portion located in the cutout region defined by the corner cut, and wherein the cutout region is located directly above at least a portion of the second rim portion. 
     
     
         10 . A blank for a paperboard container having an upper rim, the blank comprising:
 a sidewall surface comprising a first end, a second end, an upper end, and a lower end, wherein the upper end includes an upper end rim margin;   a diagonal corner cut defining an outer edge of the first end and extending to the upper end within the upper end rim margin; and   a bonding tape provided on at least a portion of the first end, wherein the bonding tape extends above the diagonal corner cut.   
     
     
         11 . The blank of  claim 10 , wherein the bonding tape includes a first tape portion secured to an inner surface of the first end and a second tape portion secured to an outer surface of the first end. 
     
     
         12 . The blank of  claim 11 , wherein the bonding tape comprises a unitary strip of material. 
     
     
         13 . A paperboard container comprising:
 a bottom panel;   a sidewall extending upward from the bottom panel and defining an interior of the container; and   an upper rim extending outward from the sidewall, the upper rim including an overlapping seam having a first overlapping portion and a second overlapping portion;   wherein the first overlapping portion of the upper rim wraps around and overlaps the second overlapping portion; and   wherein the first overlapping portion includes a bonding tape positioned on an inner surface and an outer surface thereof.   
     
     
         14 . The paperboard container of  claim 13 , wherein the first overlapping portion includes a corner cut defining at least a portion of an outer edge of the first overlapping portion. 
     
     
         15 . The paperboard container of  claim 14 , wherein the bonding tape includes a triangular tape portion extending away from the corner cut. 
     
     
         16 . The paperboard container of  claim 15 , wherein the triangular tape portion includes a first layer of bonding tape and a second layer of bonding tape overlapping the first layer. 
     
     
         17 . The paperboard container of  claim 13 , wherein the upper rim includes a top rim portion and a lower rim portion positioned directly below the top rim portion. 
     
     
         18 . The paperboard container of  claim 17 , wherein the top rim portion is connected to the lower rim portion by a reverse bend fold. 
     
     
         19 . The paperboard container of  claim 13 , wherein the upper rim includes a top rim portion, a lower rim portion positioned below the top rim portion, and an intermediate rim portion positioned between the top rim portion and the lower rim portion. 
     
     
         20 . The paperboard container of  claim 19 , wherein the top rim portion is connected to the lower rim portion by a first reverse bend fold and the intermediate rim portion is connected to the lower rim portion by a second reverse bend fold.