An aseptic closure for containers of liquids comprising a main body provided with a threaded ring, which is designed to be associated with a neck of a container and from which there protrudes a tubular projection which is coupled to an upper closure. A step protrudes from the inside wall of the projection, proximate to the main body, and forms a passage hole which is controlled by a flow control element which is monolithic, by means of radial supporting bridges, with respect to the upper closure; the upper closure has a tubular structure and can slide axially along the projection from a lowered position, which closes the hole because the flow control element forms a seal against its wall, to a raised position for opening the hole for the passage of the liquid.
A spout assembly includes a main body coupled on an opening of a container, a lip portion formed on the main body, having an operating portion and a coupling portion, a spouting guide installed in the operation portion of the lip portion, being vertically movable, and an upper cap coupled on the coupling portion to provide seal to the main body. The lip portion is provided with a seal projection having a side exhaust hole, the seal projection sealing a lower end of the spouting guide, and the spouting guide.
A closure includes: (a) a base attached to an opening of a container, a conduit extending therethrough in fluid communication with contents of the container, a tubular spout guide defining a portion of the conduit, an annular deck extending radially inwardly from an inner circumferential surface of the base defining a central orifice in fluid communication with the conduit,;and (b) an annular spout mounted to the tubular spout guide for reciprocation between an open position and a closed position, the spout including (1) an annular wall and (2) a plug positioned radially within the annular wall; the plug has annular, outer circumferential seal surface that is received within, and plugs the central orifice of the deck; a portion of the seal surface of the plug is axially recessed or flush with the annular wall of the spout; the seal surface has either a cylindrical shape or a frustoconical shape.
A closure for a liquid container comprising a base including a conduit extending therethrough, the base further including a substantially tubular spout guide and a plug positioned radially within the tubular spout guide, and a substantially annular spout mounted to the tubular spout guide for reciprocation between an open and a closed position, the spout including an annular wall and an annular deck extending radially inwardly from an upper end of the annular wall forming a central orifice, where the plug includes a leading end and an annular, outer seal surface that is received within, and blocks the central orifice when the spout is in the closed position and that is removed from the central orifice when the spout is in the open position, and where at least a substantial portion of the outer circumferential seal surface of the plug is axially recessed with respect to the tubular spout guide.
A dispenser comprises a housing that has a removable tamper proof protective cap and tamper proof ring and is threaded to a container. The container, which is the main package, holds the supplemental component. The housing holds the first component into a plunger type chamber in a fully retracted position and is sealed from the supplemental component. The chamber has a delivery end that is closed before use. When pushed all the way in, the chamber's delivery end becomes open and delivers the first component into the main package.
