Plastic stopper for use on package body of package, has rotational wall provided with centering extensions that are defined by portions of inner and outer surfaces, where surfaces converge toward each other

摘要

The stopper (10) has a base (18) comprising a channel (22) intended for flow of a product contained in a package. The channel comprises a free end and a connection end that are connected to an opening (16) of the package. A rotational wall (26) defines the connection end of the channel, and is provided with centering extensions (42). The extensions are defined by portions of an inner rotational surface (SI) and portions of an outer rotational surface (SE). The inner and outer surfaces converge toward each other, and are curved together. Independent claims are also included for the following: (1) a method for fabricating a stopper (2) a mold comprising a body that is used for molding a base of stopper (3) a package including a package body.