Plastic closure for containers

Abstract

A plastic closure assembly for receipt on a container includes a plastic fitment having a skirt adapted to be received by snap fit over an external bead on the container neck finish, a plurality of angularly spaced internal lugs on the skirt for receipt in recesses on the finish bead to prevent rotation of the fitment on the finish, and at least one external thread segment. A plastic closure has a skirt with at least one internal thread segment for engagement with the at least one external thread segment on the fitment. In exemplary embodiments of the disclosure, the external thread segment may be disposed on an outer surface of the fitment skirt or on the external surface of a tubular spout on the fitment. The fitment skirt preferably has an internal retention element received by snap fit over the external bead on the container finish.

1 . A plastic closure assembly for receipt on a container having a neck finish with an end surrounded by an external bead and a plurality of angularly spaced recesses in said bead, said closure assembly including: 
 a plastic fitment having a skirt adapted to be received by snap fit over the finish bead, a plurality of angularly spaced internal lugs on said skirt for receipt in the recesses on the finish bead to prevent rotation of the fitment on the neck finish, and at least one external thread segment, and a plastic closure having a skirt with at least one internal thread segment for engagement with said at least one external thread segment on said fitment.    
   
   
       2 . The closure assembly set forth in  claim 1  wherein said fitment has a deck for overlying the end of the container finish, said skirt extending from an outer periphery of said deck and a wall extending from said deck for receipt within the container finish.  
   
   
       3 . The closure assembly set forth in  claim 2  wherein said skirt has an internal retention element for receipt by snap fit over the finish external bead on the container.  
   
   
       4 . The closure assembly set forth in  claim 2  wherein said at least one external thread segment is disposed on an outer surface of said fitment skirt.  
   
   
       5 . The closure assembly set forth in  claim 2  wherein said fitment includes a spout extending axially from said deck in a direction opposite from said fitment skirt, with said at least one external thread segment being disposed on said spout.  
   
   
       6 . The closure assembly set forth in  claim 5  wherein said fitment has a dispensing opening at an end of said spout remote from said deck, and said closure has a wall for plug-sealing engagement within said dispensing opening.  
   
   
       7 . The closure assembly set forth in  claim 2  including a tamper band frangibly connected to said closure skirt and an abutment on said fitment to fracture the frangible connection between said tamper band and said closure skirt when said closure is first removed from said fitment.  
   
   
       8 . A plastic closure assembly for receipt on a container having a neck finish with an end surrounded by an external bead and a plurality of angularly spaced recesses in said bead, said closure assembly including: 
 a plastic fitment having a deck for overlying the end of the container neck finish, a skirt extending from an outer periphery of said deck having an internal retention element for receipt by snap fit over the external bead on the container neck finish, a plurality of angularly spaced internal lugs on said skirt for receipt in the recesses on the finish external bead to prevent rotation of the fitment on the neck finish, an annular wall extending from said deck for sealing receipt within the container finish, and at least one external thread segment, and    a plastic closure having a skirt with at least one internal thread segment for threaded engagement with said at least one external thread segment on said fitment.    
   
   
       9 . The closure assembly set forth in  claim 8  wherein said at least one external thread segment is disposed on an outer surface of said fitment skirt.  
   
   
       10 . The closure assembly set forth in  claim 8  wherein said fitment includes a spout extending axially from said deck in a direction opposite from said fitment skirt, with said at least one external thread segment being disposed on said spout.  
   
   
       11 . The closure assembly set forth in  claim 8  including a tamper band frangibly connected to said closure skirt and an abutment on said fitment to fracture the frangible connection between said tamper band and said closure skirt when said closure is first removed from said fitment.  
   
   
       12 . A package that includes: 
 a container having a neck finish with an end surrounded by an external bead and a plurality of angularly spaced recesses in said bead,    a plastic fitment having a skirt received by snap fit over said finish bead, a plurality of angularly spaced internal lugs on said skirt received in said recesses on said container finish bead to prevent rotation of said fitment on said neck finish, and at least one external thread segment, and a plastic closure having a skirt with at least one internal thread segment engaged with said at least one external thread segment on said finish.    
   
   
       13 . The package set forth in  claim 12  wherein said fitment has a deck overlying the end of said container finish, said skirt extending from an outer periphery of said deck and a wall extending from said deck within said container finish.  
   
   
       14 . The package set forth in  claim 13  wherein said skirt has an internal retention element received by snap fit over the finish external bead on said container.  
   
   
       15 . The package set forth in  claim 14  wherein said at least one external thread segment is disposed on an outer surface of said fitment skirt.  
   
   
       16 . The package set forth in  claim 14  wherein said fitment includes a spout extending axially from said deck in a direction opposite from said fitment skirt, with said at least one external thread segment being disposed on said spout.  
   
   
       17 . The package set forth in  claim 16  wherein said fitment has a dispensing opening at an end of said spout remote from said deck, and said closure has a wall for plug-sealing engagement within said dispensing opening.  
   
   
       18 . The package set forth in  claim 14  including a tamper band frangibly connected to said closure skirt and an abutment on said fitment to fracture the frangible connection between said tamper band and said closure skirt when said closure is first removed from said fitment.  
   
   
       19 . The package set forth in  claim 12  including a seal disk induction or conduction secured to said fitment.  
   
   
       20 . A package that includes: 
 a glass container having a neck finish with an end surrounded by an external bead and a plurality of angularly spaced recesses in said bead,    a plastic fitment having a deck overlying the end of said container finish, a skirt extending from an outer periphery of said deck having an internal retention element received by snap fit over the external bead on said container neck finish, a plurality of angularly spaced internal lugs on said skirt received in the recesses on said finish external bead to prevent rotation of the fitment on said neck finish, an annular wall extending from said deck sealingly received within said container neck finish, and at least one external thread segment, and    a plastic closure having a skirt with at least one internal thread segment in threaded engagement with said at least one external thread segment on said fitment.    
   
   
       21 . The package set forth in  claim 20  wherein said at least one external thread segment is disposed on an outer surface of said fitment skirt.  
   
   
       22 . The package set forth in  claim 20  wherein said fitment includes a spout extending axially from said deck in a direction opposite from said fitment skirt, with said at least one external thread segment being disposed on said spout.  
   
   
       23 . The package set forth in  claim 20  including a tamper band frangibly connected to said closure skirt and an abutment on said fitment to fracture the frangible connection between said tamper band and said closure skirt when said closure is first removed from said fitment.  
   
   
       24 . The package set forth in  claim 20  including a seal disk induction or conduction secured to said fitment.