초록 ▼

A stopper is provided which is adapted to be held in place in an opening in a molded thermoplastic container that is molded about the stopper in place. The stopper has a substantially cylindrical body portion with a planar end surface at one end thereof and a unitary skirt portion depending from the

A stopper is provided which is adapted to be held in place in an opening in a molded thermoplastic container that is molded about the stopper in place. The stopper has a substantially cylindrical body portion with a planar end surface at one end thereof and a unitary skirt portion depending from the other end of the body portion. An annular flange, unitary with the body portion, extends laterally away from the body portion in one end thereof to define first and second peripheral flange surfaces and a lateral flange surface. The first peripheral flange surface is contiguous with the planar end surface and with the lateral flange surface. The first peripheral flange surface further is disposed at an angle with respect to the planar end surface and converges towards the second peripheral flange surface in a direction away from the body portion. The second peripheral flange surface is contiguous with the lateral flange surface and the skirt portion.

대표청구항 ▼

A stopper adapted to be held in place in an opening in a molded thermoplastic container which is molded about the stopper in place, said stopper comprising: a generally cylindrical lower portion having a longitudinal axis; a generally cylindrical upper cap portion of resilient material integral with

A stopper adapted to be held in place in an opening in a molded thermoplastic container which is molded about the stopper in place, said stopper comprising: a generally cylindrical lower portion having a longitudinal axis; a generally cylindrical upper cap portion of resilient material integral with said lower portion at one end thereof, coaxial therewith, and projecting outwardly from the periphery of said lower portion to define an annular flange thereabove, said flange having a generally cylindrical side surface substantially coaxial with said longitudinal axis; said cap portion defining a generally circular central top surface centered about said longitudinal axis and further defining an outwardly beveled peripheral upper surface between said circular central top surface and said cylindrical side surface of said flange; and the ratio of the exterior diameter of said flange to the thickness of said flange at the juncture of said flange and said lower portion being less than about 5.