Patent ID: 8584910
Filing Date: 2013-11-19
Classification: B65D

Abstract:
1. A device for use on a container which contains a semi-solid to selectively allow and disallow passage of semi-solid through the device, the device comprising: a housing comprising an inlet port through which semi-solid from a container can enter the housing, an outlet port through which semi-solid which has entered the housing through the inlet port can exit the housing, and a bore; a barrel which fits, and can turn, within the bore; an operator which is outside the housing and operable to turn the barrel within the bore between a first position and a second position; the barrel comprising a through-passage which, when the operator has turned the barrel to the first position registers the inlet port to the outlet port to allow passage of semi-solid through the device, and which, when the operator has turned the barrel to the second position, unregisters the inlet port to the outlet port to disallow passage of semi-solid through the device; and a cover which is external to the housing and selectively positionable by the operator for turning with turning of the barrel to occlude the outlet port when the operator has turned the barrel to the second position and to not occlude the outlet port when the operator has turned the barrel to the first position; in which the housing comprises a bore wall which extends lengthwise of, and in circumferentially surrounding relationship to, the bore to define an axis of turning for the barrel within the bore, the outlet port is disposed in a first semi-circumference of the bore wall, and the inlet port is disposed in a second semi-circumference of the bore wall opposite the first semi-circumference, and in which the first semi-circumference of the bore wall has an exterior convex surface curvature which is concentric with the axis of turning and the cover comprises a concave surface curvature concentric with the axis of turning and confronting the exterior convex surface curvature of the first semi-circumference of the bore wall, the concave surface curvature having a surface area the entirety of which confronts the exterior convex surface curvature of the first semi-circumference of the bore wall throughout turning of the barrel about the axis of turning between the first position and the second position.