Patent ID: 7850030

Claim:
An expansible bottle stopper comprising: a body including a top disc and a plurality of connecting plates, with the plurality of connecting plates being axially extending and annularly spaced and connected to the top disc, with a gap being defined between adjacent pairs of connecting plates, with each said connecting plate including an abutting portion protruding in a radial manner, with a circular hole defined through the top disc and defined by the plurality of connecting plates, with the body further including a bottom disc, and with each said connecting plate having an end connected to the bottom disc; a compressible resilient member coupled with outer sides of the connecting plates of the body; and a movable member including a head and a shank extending from a side of the head, with the shank including an abutting portion for abutting against the abutting portions of the body to radially expand the resilient member, with the shank including a reduced coupling portion, and with the coupling portion being engaged with the abutting portion of the body to cause radial shrinkage of the resilient member when the shank of the movable member is moved axially relative to the body.