초록 ▼

A three piece closure for selectively controlling flow of product from a container, and method of manufacture, are disclosed. The closure includes an inner member, an outer member and an insert disposed therebetween. The inner member is adapted for attachment to a necked opening of the container. Th

A three piece closure for selectively controlling flow of product from a container, and method of manufacture, are disclosed. The closure includes an inner member, an outer member and an insert disposed therebetween. The inner member is adapted for attachment to a necked opening of the container. The outer member has a base portion, a top portion, and an inward flange disposed substantially circumferentially about the base of the outer member. The insert has a base portion and a radially outward flange disposed substantially circumferentially about the base portion. Upon insertion of the insert into the outer member, the outward flange passes the inward flange to provide cooperative engagement with the inward flange such that axial movement of the outer member causes axial movement of the insert to control the flow of the product. The inward flange of the outer member includes a taper portion tapering radially inward away from the base portion, such that insertion of the insert into the outer member causes the taper portion of the insert to progressively outwardly expand the inward flange of the outer member to assist assembly thereof.

대표청구항 ▼

A closure for selectively controlling flow of product from a container, the closure comprising an outer member having a base portion and a top portion, an insert and an inner member, wherein the inner member is adapted for attachment to the container, the inner member cooperating with the insert to

A closure for selectively controlling flow of product from a container, the closure comprising an outer member having a base portion and a top portion, an insert and an inner member, wherein the inner member is adapted for attachment to the container, the inner member cooperating with the insert to control the flow of product, the outer member and the insert including cooperative attachment means such that axial movement of the outer member causes axial movement of the insert to control the flow of product, an improved attachment means comprising: a radially inward flange disposed substantially circumferentially about the base of the outer member; a radially outward flange disposed substantially circumferentially about the base of the insert, the outward flange for cooperative engagement with the inward flange, wherein the outward flange includes a taper portion, the taper portion being outwardly concave relative to where the outward flange moets the insert, to assist insertion of the insert into the outer member such that the outward flange passes the inward flange.