Drain back closure

Abstract

A closure including a top profile having an exterior surface and an interior surface opposite the exterior surface; a spud projecting from the interior surface; a hinge engaging the top profile to a main body; an abutment in the main body sealingly engaged with the spud, wherein the abutment extends around a longitudinal axis passing through the top profile and the spud; a collar engaged with the abutment and oriented away from the top profile; a floor peripherally bounded by the abutment; a sealing member that is at least part of the floor, wherein the sealing member is peripherally bounded by a frangible boundary extending around the longitudinal axis; a tab extending from the sealing member towards the top profile; wherein the sealing member and the abutment are a continuous single constitutive material.

What is claimed is: 
     
         1 . A closure comprising:
 a top profile having an exterior surface and an interior surface opposite said exterior surface;   a spud projecting from said interior surface;   a hinge engaging said top profile to a main body;   an abutment in said main body sealingly engaged with said spud, wherein said abutment extends around a longitudinal axis passing through said top profile and said spud;   a collar engaged with said abutment and oriented away from said top profile;   a floor peripherally bounded by said abutment;   a sealing member that is at least part of said floor, wherein said sealing member is peripherally bounded by a frangible boundary extending around said longitudinal axis;   a tab extending from said sealing member towards said top profile;   wherein said sealing member and said abutment are a continuous single constitutive material.   
     
     
         2 . The closure according to  claim 1 , wherein said closure further comprises:
 a spout projecting from said floor towards said top profile, wherein said spout extends at least partially around said longitudinal axis and is nearer to said longitudinal axis than said abutment.   
     
     
         3 . The closure according to  claim 2 , wherein sealing member is at least partially peripherally bound by said spout. 
     
     
         4 . The closure according to  claim 3 , wherein said spout has a dispensing lip and said longitudinal axis can be between said dispensing lip and said hinge, wherein a drain back channel is defined by part of said abutment, part of said spout, and part of said floor connecting said abutment and said spout, wherein when said closure is in a position such that said dispensing lip is above said collar said drain back channel is sloped in a direction away from beneath said dispensing lip. 
     
     
         5 . The closure according to  claim 4 , wherein said tab is a loop, wherein said loop is positioned between said floor and said top profile. 
     
     
         6 . The closure according to  claim 5 , wherein said spud is a continuous flange extending around said longitudinal axis. 
     
     
         7 . The closure according to  claim 6 , wherein said tab extends from said sealing member at an initiation location, wherein said longitudinal axis L is between said initiation location and said hinge. 
     
     
         8 . The closure according to  claim 7 , wherein said frangible boundary is thinner than parts of said sealing member along said frangible boundary. 
     
     
         9 . The closure according to  claim 8 , wherein said hinge is a living hinge. 
     
     
         10 . The closure according to  claim 9 , wherein said collar has an inwardly oriented surface oriented towards said longitudinal axis and an outwardly oriented surface oriented away from said longitudinal axis, wherein said inwardly oriented surface or said outwardly oriented surface comprises threads. 
     
     
         11 . The closure according to  claim 9 , wherein said collar has an inwardly oriented surface oriented towards said longitudinal axis and an outwardly oriented surface oriented away from said longitudinal axis, wherein a snap bead projects from said inwardly oriented surface or from said outwardly oriented surface. 
     
     
         12 . The closure according to  claim 1 , wherein said closure further comprises:
 a spout projecting from said floor towards said top profile, wherein said spout extends at least partially around said longitudinal axis and is nearer to said longitudinal axis than said abutment, wherein said sealing member, said abutment, and said spout are a continuous single constitutive material.   
     
     
         13 . The closure according to  claim 1 , wherein said spud is nearer to said longitudinal axis than said abutment or said spud is coincident with the longitudinal axis. 
     
     
         14 . The closure according to  claim 1 , wherein said spud is a continuous flange extending around said longitudinal axis, wherein said abutment is nearer to the longitudinal axis than said continuous flange. 
     
     
         15 . The closure according to  claim 1 , wherein said closure is engaged with a container comprised of said single constitutive material.