Abstract: Embodiments of the disclosure provide a liner structure adapted for insertion within a discharge spout of a container. The liner structure may include a neck formed of a liner material and enclosing a cross-sectional area substantially equal to a cross-sectional area of the discharge spout. A collar formed of the liner material may be coupled circumferentially to an end of the neck, wherein the collar has a cross-sectional area greater than the cross-sectional area of the discharge spout. A constrictable sidewall is on the neck proximate the collar. Constricting the constrictable sidewall compresses the collar such that it is within the cross-sectional area.

Abstract: A liner discharge structure, and associated liner and container system are disclosed.

Abstract: A liner discharge structure, and associated liner and container system are disclosed. A liner discharge structure according to the present disclosure can include: a neck collar fabricated from a liner material, wherein the neck collar encapsulates a first O-ring in the liner material; a neck fabricated from the liner material and including a first end coupled to the neck collar and in fluid communication with container liner, wherein the neck provides a passageway extending from the first end to a second end; and a discharge collar fabricated from the liner material and coupled to the second end of the neck, wherein the discharge collar encapsulates a second O-ring therein.

Abstract: A liner discharge structure, and associated liner and container system are disclosed. The liner discharge structure includes: a collar fabricated from a liner material, wherein the collar encapsulates an O-ring in the liner material; a substantially rigid section having an opening, wherein the substantially rigid section is fabricated from the liner material; and a neck fabricated from the liner material, wherein the neck provides a passageway extending between the opening in the substantially rigid section and the collar; wherein the liner material used to fabricate the substantially rigid section has a cross-sectional thickness greater than the liner material used to fabricate the neck.