Heatseal plug with resealing feature

摘要

There is disclosed herein an improved hermetically sealed container and closure assembly for storing and dispensing sterile liquids. The container includes a bottle having a neck which defines an outlet or mouth, a set of external threads adjacent the outlet and transverse abutment shoulder means on said neck and spaced from the outlet. The closure includes an externally threaded cup-shaped overcap having a generally cylindrically-shaped side wall, a top wall for positioning across the bottle mouth and wiper means depending from said top wall for sealing in cooperation with said outlet. The overcap is hermetically bonded to the bottle neck. An outer jacking ring is provided which is threadedly interfitted over the overcap and adapted for counterclockwise rotation to engage the abutment means and cause the overcap to move axially upwardly from the bottle outlet. Ramp-like cam means are provided on the neck for cooperation in sealing the wiper means to the bottle outlet. Shoulder means are provided on the overcap for engaging the ramp-like cam means and causing the overcap to distort and thereby enhance sealing of the wiper means to the outlet.