Sealing liner for a closure

Abstract

A sealing liner for a container includes a unitary body having a substantially circular shape with an outer peripheral edge, an interior panel, and an annular wave portion surrounding the interior panel and being positioned between the interior panel and the peripheral edge. The wave portion is constructed and arranged with an inwardly-directed surface that includes two axially-projecting, concentric annular portions and a concave land area between the two annular portions. The sealing liner is bonded into a unitary closure having a sidewall and an upper panel wherein the sidewall is constructed and arranged for attaching to the neck finish of a container. The neck finish includes an upper edge and the sealing liner is configured such that its concave land area contacts the upper edge for sealing of that location and the corresponding interface between the container and closure.

1 . A sealing liner for a container closure comprising: 
 a unitary body having a substantially circular shape with an outer peripheral edge, an interior panel, and an annular wave portion surrounding said interior panel and being positioned between said interior panel and said peripheral edge, said wave portion being constructed and arranged with an inwardly-directed surface that is constructed and arranged with two axially-projecting, concentric annular portions and a concave land area between said two annular portions.    
   
   
       2 . The sealing liner of  claim 1  wherein said wave portion is constructed and arranged with an outwardly-directed surface that is constructed and arranged with two concentric annular channels and a raised annular ridge located between said two annular channels.  
   
   
       3 . The sealing liner of  claim 2  wherein each annular channel is generally V-shaped.  
   
   
       4 . The sealing liner of  claim 1  wherein each annular portion is generally V-shaped.  
   
   
       5 . The sealing liner of  claim 1  wherein said unitary body has a substantially uniform thickness.  
   
   
       6 . A closure and liner assembly for closing a container, the container having a neck finish constructed and arranged to receive said closure and liner assembly, said closure and liner assembly comprising: 
 a unitary closure having a sidewall and an upper panel, said sidewall being constructed and arranged for attaching to said neck finish; and    a sealing liner received by said unitary closure for sealing between the closure and the container, said liner having a unitary body having a substantially circular shape with an outer peripheral edge, an interior panel, and an annular wave portion surrounding said interior panel and being positioned between said interior panel and said peripheral edge, said wave portion being constructed and arranged with an inwardly-directed surface that is constructed and arranged with two axially-projecting, concentric annular portions and a concave land area between said two annular portions.    
   
   
       7 . The closure and liner assembly of  claim 6  wherein said top panel includes a center portion and an annular ridge surrounding said center portion.  
   
   
       8 . The closure and liner assembly of  claim 7  wherein said annular ridge includes two axially-projecting, concentric portions separated by a concave land area.  
   
   
       9 . The closure and liner assembly of  claim 8  wherein said wave portion is constructed and arranged with an outwardly-directed surface that is constructed and arranged with two concentric annular channels and a raised annular ridge located between said two annular channels.  
   
   
       10 . The closure and liner assembly of  claim 9  wherein each annular channel is generally V-shaped.  
   
   
       11 . The closure and liner assembly of  claim 9  wherein said unitary body has a substantially uniform thickness.  
   
   
       12 . The closure and liner assembly of  claim 8  wherein said wave portion is constructed and arranged with an outwardly-directed surface having two annular channels, said two annular channels fitting up against said two axially-projecting concentric portions.  
   
   
       13 . The closure and liner assembly of  claim 6  wherein said wave portion is constructed and arranged with an outwardly-directed surface that is constructed and arranged with two concentric annular channels and a raised annular ridge located between said two annular channels.  
   
   
       14 . The closure and liner assembly of  claim 13  wherein each annular channel is generally V-shaped.  
   
   
       15 . The closure and liner assembly of  claim 6  wherein said unitary body has a substantially uniform thickness.  
   
   
       16 . In combination: 
 a container having a neck finish;    a unitary closure having a sidewall and an upper panel, said sidewall being constructed and arranged for attaching to said neck finish; and    a liner received by said unitary closure for sealing between the closure and the container, said liner having a unitary body having a substantially circular shape with an outer peripheral edge, an interior panel, and an annular wave portion surrounding said interior panel and being positioned between said interior panel and said peripheral edge, said wave portion being constructed and arranged with an inwardly-directed surface that is constructed and arranged with two axially-projecting, concentric annular portions and a concave land area between said two annular portions.    
   
   
       17 . The combination of  claim 16  wherein said neck finish being externally threaded and said sidewall being internally threaded.  
   
   
       18 . The combination of  claim 17  wherein said container being constructed and arranged with an annular A diameter stop position below the threading on said neck finish.  
   
   
       19 . The combination of  claim 18  wherein said unitary closure includes a tamper-evident band connected to said sidewall by a plurality of frangible elements.  
   
   
       20 . The combination of  claim 16  wherein said wave portion is constructed and arranged with an outwardly-directed surface that is constructed and arranged with two concentric annular channels and a raised annular ridge located between said two annular channels.  
   
   
       21 . The combination of  claim 20  wherein each annular channel is generally V-shaped.  
   
   
       22 . The combination of  claim 16  wherein said upper panel includes a center portion and an annular ridge surrounding said center portion.  
   
   
       23 . The combination of  claim 22  wherein said annular ridge includes two axially-projecting, concentric portions separated by a concave land area.  
   
   
       24 . The combination of  claim 23  wherein said wave portion is constructed and arranged with an outwardly-directed surface having two annular channels, said two annular channels fitting up against said two axially-projecting concentric portions.  
   
   
       25 . The combination of  claim 16  wherein said unitary body has a substantially uniform thickness.