초록 ▼

A fitment and closure assembly useful with a gable-topped carton having a gable-forming panel with a pouring hole, through which contents are pourable from the carton, is molded from low density polyethylene. A fitment having a tubular spout formed with an external thread and an annular flange exten

A fitment and closure assembly useful with a gable-topped carton having a gable-forming panel with a pouring hole, through which contents are pourable from the carton, is molded from low density polyethylene. A fitment having a tubular spout formed with an external thread and an annular flange extending outwardly from the tubular spout, below the external thread, is attachable to the gable-forming panel so that the annular flange is attached to the gable-forming panel, around the pouring hole, and so that the tubular spout extends upwardly from the pouring hole. A closure having an upper wall, a tubular skirt with an internal thread and an upper shoulder, and a plug seal forming an annular recess between the plug seal and the upper shoulder is threadable onto the fitment so that the external and internal threads are interengaged and so that the upper end of the tubular spout enters the annular recess with an interference fit. A tear-away web disposed within the tubular spout is attached to the intermediate shoulder by a tearable membrane extending around the intermediate shoulder, below the upper portion of the tubular spout, so that the internal cross section of the tubular spout is not reduced significantly above the intermediate shoulder by any residue of the tearable membrane. A pull ring is attached unitarily to the tear-away web, near the tearable membrane, for initiating a tear in the tearable membrane. Optionally, the tubular skirt has a tear-away band, below the internal thread.

대표청구항 ▼

[ What is claimed is:] [1.] A fitment and closure assembly useful with a gable-topped carton having a gable-forming panel with a pouring hole, through which contents are pourable from the carton, the fitment and closure assembly comprising(a) a fitment molded from a polymeric material and having a t

[ What is claimed is:] [1.] A fitment and closure assembly useful with a gable-topped carton having a gable-forming panel with a pouring hole, through which contents are pourable from the carton, the fitment and closure assembly comprising(a) a fitment molded from a polymeric material and having a tubular spout and an annular flange unitary with the tubular spout, the tubular spout being formed with an external thread and terminating at an unthreaded, upper end extending above the external thread, the annular flange extending outwardly from the tubular spout, below the external thread, the fitment being attachable to the gable-forming panel so that the annular flange is attached to the gable-forming panel, around the pouring hole, and so that the tubular spout extends upwardly from the pouring hole,(b) a closure molded from a polymeric material and having an upper wall and a tubular skirt unitary with the upper wall, the tubular skirt depending from the upper wall and having an internal thread and an upper shoulder above the internal thread, the closure having a plug seal unitary with the closure wall, the plug seal being tubular and depending from the upper wall so as to form an annular recess between the plug seal and the upper shoulder, the plug seal extending below the upper shoulder, the closure being threadable onto the fitment so that the external and internal threads are interengaged, so that the plug seal enters the tubular spout before the upper end of the tubular spout enters the annular recess to provide a primary seal at an annular interface between the plug seal and the upper end of the tubular spout, and so that the upper end of the tubular spout enters the annular recess with an interference fit so as to provide a seal at another annular interface between the upper shoulder and an outwardly facing surface of the upper end of the tubular spout, said plug seal extending into said upper end of said tubular spout inwardly of said external thread, said tubular spout having a thickness no greater than approximately 0.033 inch, except at the external thread.