Patent ID: 6769560
Filing Date: 2004-08-03
Classification: B65D

Abstract:
A bottle stopper comprising:a hollow tubular stopper body having a receiving open chamber in an upper part thereof and a lower part formed of two symmetrical halves separated by a crevice, said two symmetrical halves each having a protruding block and a stop edge; a press member inserted into said stopper body and movable between a first position and a second position said press member having a bottom end terminating in a stop portion and a front tip; a return member mounted within said receiving open chamber of said stopper body around said press member and adapted to support said press member in said first position; an inner cap capped on the lower part of said stopper body and rotatable relative to said stopper body, said inner cap having a plug hole in a bottom side of a split lower part thereof; and a flexible outer cap capped on said inner cap; wherein when said press member moved to said second position, the stop portion of said press member is stopped below the stop edges of said stopper body against the protruding blocks of the symmetrical halves of said stopper body to force the two symmetrical halves of the lower part of said stopper body bilaterally radially outwards, and the front tip of said press member is plugged into the plug hole of said inner cap to stretch the split lower part of said inner cap outwards; when said stopper body rotated relative to said inner cap through a predetermined angle, the stop edge is moved away from the stop portion of said press member, and said return member returns said press member to said first position, releasing stretching force from said outer cap.