Zip sealed flexible pouch

Abstract

front wall, and further comprising a closure mechanism comprising a thin membrane patch bonded to said pouch about a periphery of said opening, a platform bonded to said thin membrane patch, said platform including a window formed therein and a plurality of cutting surfaces adjacent said window, and a pull strip bonded to said thin membrane patch and attached to said platform by a frangible membrane, wherein a removal of the pull strip ruptures said frangible membrane and tears said thin membrane patch at said cutting surfaces.

1 . A closure mechanism for a thin walled pouch comprising:
 a thin membrane patch secured to said thin walled pouch;   a platform bonded to said thin membrane patch, said platform formed with a window and a plurality of downwardly directed cutting surfaces; and   an elongate removable strip overlaying said window and connected to said platform by a frangible member, said frangible member ruptured by removal of said elongate strip.   
     
     
         2 . The closure mechanism of  claim 1  wherein said elongate removable strip is bonded to said thin membrane patch, and removal of said elongate strip tears said thin membrane patch along said cutting surfaces. 
     
     
         3 . The closure mechanism of  claim 2  wherein said elongate removable strip has a pull tab. 
     
     
         4 . The closure mechanism of  claim 2  wherein said cutting surface comprise a plurality of downwardly directing teeth. 
     
     
         5 . The closure mechanism of  claim 2  wherein said platform includes first and second retaining ledges to retain said elongate removable strip against said platform after said frangible member is ruptured. 
     
     
         6 . The closure mechanism of  claim 1  where said platform is ultrasonically bonded to said thin membrane patch. 
     
     
         7 . The closure mechanism of  claim 1  wherein said closure mechanism is made of polyethylene. 
     
     
         8 . The closure mechanism of  claim 1  wherein said closure mechanism is made from a single cavity mold process. 
     
     
         9 . A thin walled disposable pouch having a front wall, and rear wall, and an opening in said front wall, and further comprising a closure mechanism comprising:
 a thin membrane patch bonded to said pouch about a periphery of said opening;   a platform bonded to said thin membrane patch, said platform including a window formed therein and a plurality of cutting surfaces adjacent said window;   a pull strip bonded to said thin membrane patch and attached to said platform by a frangible membrane;   wherein a removal of the pull strip ruptures said frangible membrane and tears said thin membrane patch at said cutting surfaces.   
     
     
         10 . The pouch of  claim 9  wherein said elongate removable strip has a pull tab. 
     
     
         11 . The pouch of  claim 9  wherein said cutting surface comprise a plurality of downwardly directing teeth. 
     
     
         12 . The pouch of  claim 9  wherein said platform includes first and second retaining ledges to retain said elongate removable strip against said platform after said frangible member is ruptured. 
     
     
         13 . The pouch of  claim 9  where said platform is ultrasonically bonded to said thin membrane patch. 
     
     
         14 . The pouch of  claim 9  wherein said closure mechanism is made of polyethylene. 
     
     
         15 . The pouch of  claim 1  wherein said closure mechanism is made from a single cavity mold process.