Double walled transport bag and method of manufacture

Abstract

Plastic film bags, commonly used for storing and/or transporting various products and things, and methods of manufacturing the plastic film transport bags are disclosed. A transport bag includes a double-walled rear panel integral formed with a double-walled front panel. A lower terminal edge of the double-walled rear panel is integral with a lower terminal edge of the double-walled front panel. Accordingly, the double-walled front and rear panels define a continuous compartment extending between the front wall and the rear wall.

What is claimed is:  
     
         1 . A transport bag, comprising: 
 a double-walled rear panel having an inner and outer layer, each of the inner and outer layers of the double-walled rear panel having an upper terminal edge, a lower terminal edge, and a pair of side terminal edges, the double-walled rear panel having a length, the upper terminal edge of the inner and outer layers of the rear panel being joined together; and    a double-walled front panel having an inner and an outer layer, each of the inner and outer layers of the double-walled front panel having an upper terminal edge, a lower terminal edge, and a pair of side terminal edges, the double-walled front panel having a length which is less than the length of the front panel, the upper terminal edge of the inner and outer layer of the front panel being joined together, the lower terminal edge of the inner layer of the rear panel is integral with the lower terminal edge of the inner layer of the front panel and the lower terminal edge of the outer layer of the rear panel is integral with the lower terminal edge of the outer layer of the front panel, wherein the inner and outer layers define a compartment therebetween and wherein the front and rear panels define a pocket therebetween.    
     
     
         2 . The transport bag according to  claim 1 , wherein the side terminal edges of the rear panel and the side terminal edges of the front panel are joined to one another.  
     
     
         3 . The transport bag according to  claim 2 , wherein the side terminal edges of the inner and outer layer of the rear panel are joined to one another and wherein the side terminal edges of the inner and outer layer of the front panel are joined to one another.  
     
     
         4 . The transport bag according to  claim 3 , wherein the inner and outer layers of the front panel are joined together at a distance spaced from the upper terminal edge thereof.  
     
     
         5 . The transport bag according to  claim 4 , wherein the inner and outer layers of the front panel are joined together at a distance of about three-eights of an inch from the upper terminal edge thereof.  
     
     
         6 . The transport bag according to  claim 4 , further including a strip of adhesive applied to the inner layer of the rear panel extending across a width of the bag.  
     
     
         7 . The transport bag according to  claim 6 , further including a release liner releasably disposed over the strip of adhesive applied to the inner layer of the rear panel.  
     
     
         8 . The transport bag according to  claim 6 , wherein the strip of adhesive is applied to the inner layer of the rear panel at a location in registration with the joining of the inner and outer layers of the front panel.  
     
     
         9 . The transport bag according to  claim 8 , further including adhesive tape affixed to the inner layer of the rear panel at a location in proximity to the upper terminal edge thereof.  
     
     
         10 . The transport bag according to  claim 8 , further including adhesive tape affixed to the outer layer of the front panel at a location spaced a distance from the upper terminal edge thereof.  
     
     
         11 . The transport bag according to  claim 10 , wherein the adhesive tape is affixed to the outer layer of the front panel at a distance of about one-half an inch from where the inner and outer layers of the front panel are joined together.  
     
     
         12 . The transport bag according to  claim 1  wherein the bag is constructed from a polymeric material selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate, polyvinylchloride and vinyl acetate.  
     
     
         13 . A method of manufacturing a transport bag comprising the steps of: 
 providing a lower and an upper elongate strip of polymeric material, the upper and lower elongate strips each including a proximal terminal edge and a distal terminal edge;    laying the upper elongate strip atop the lower elongate strip;    joining the distal terminal edge of the upper elongate strip to the distal terminal edge of the lower elongate strip;    joining the proximal terminal edge of the upper elongate strip to the proximal terminal edge of the lower elongate strip, wherein the upper and lower elongate strips are joined at a distance spaced from their proximal terminal edges;    applying a longitudinal bead of adhesive to an upper surface of the upper elongate strip;    applying a release liner atop the longitudinal bead of adhesive strip;    folding the upper and lower elongate strips at a location such that the proximal terminal edges thereof are spaced a distance from the distal terminal edges thereof; and    feeding the folded elongate strip through a hot cut off blade to simultaneously transversely cut and seal the folded elongate strip.    
     
     
         14 . The method according to  claim 13 , wherein the upper and lower elongate strips are joined at a distance spaced about three-eights of an inch from the proximal terminal edges thereof.  
     
     
         15 . The method according to  claim 14 , further comprising the step of affixing an adhesive tape longitudinally along the upper surface of the upper elongate strip.  
     
     
         16 . The method according to  claim 15 , wherein the adhesive tape is affixed in close proximity of the distal terminal edge of the elongate upper and lower strips.  
     
     
         17 . The method according to  claim 13 , further comprising the step of affixing an adhesive tape longitudinally along a lower surface of the lower elongate strip.  
     
     
         18 . The method according to  claim 17 , wherein the adhesive tape is affixed at a distance of about one-half an inch from the joined proximal terminal edges of the upper and lower strips.