Sealed single-dose break-open package, device and method for making

Abstract

A sealed single-dose break-open package including a first sheet of semirigid plastic material; a second sheet of flexible plastic material superimposed on and sealed to the first sheet to define a sealed pocket containing a dose of a product; wherein the first sheet of semirigid plastic material includes at least one substantially straight first incision positioned at a first edge of the first sheet, and at least one shaped incision positioned in a central portion of the first sheet, laterally and at a distance from the straight first incision.

1 .- 12 . (canceled) 
     
     
         13 . A device for making a weakening in a sheet of semirigid plastic material, wherein it comprises at least one first plate connected to an incision tool having at least one straight protrusion for making a first incision in a first position of the sheet of semirigid plastic material and at least one second plate connected to at least one incision tool having at least one shaped protrusion for making a shaped incision in the sheet of semirigid plastic material. 
     
     
         14 . The device according to  claim 13 , wherein the first plate is connected to an incision tool having at least two straight protrusions spaced apart from each other for making a first and a second incision in the sheet of semirigid plastic material. 
     
     
         15 . The device according to  claim 13 , wherein the first plate and the second plate are positioned at two different incision stations, one following the other. 
     
     
         16 . The device according to  claim 15 , wherein the incision station comprising the second plate follows the incision station comprising the first plate. 
     
     
         17 . The device according to  claim 13 , wherein it comprises a plate opposite to said first plate, wherein said first plate is movable from a first position far from the opposite plate to a predetermined position near to the opposite plate so as to make a substantially straight incision in a strip of semirigid material placed between the first plate and the opposite plate, thus deforming the strip without cutting it. 
     
     
         18 . The device according to  claim 13 , wherein it comprises a plate opposite to said second plate, wherein said second plate is movable from a first position far from the opposite plate to a predetermined position near to the opposite plate so as to make a shaped incision in a strip of semirigid material placed between the second plate and the opposite plate, thus deforming the strip without cutting it. 
     
     
         19 .- 24 . (canceled)