Patent ID: 7077129
Filing Date: 2006-07-18
Classification: A61M,B65D

Abstract:
1. A dispenser comprising: a body for receipt of a carrier for a composition; an exit channel definable by said body for passage of said composition to a user; a cover for said exit channel reversibly movable between a storage in which said cover fully protects the exit channel, to an in-use position wherein the exit channel is exposed; a biasing element capable of generating a biasing energy for acting on the cover when the cover is not in said in-use or storage positions, capable of biasing the cover towards either the in-use position or the storage position depending on the location of the cover between its storage and in-use positions; and a control element cooperatively engaging the biasing element to control the direction of the bias acting on the cover, wherein said control element defines a biasing energy curve varying according to the proximity of the cover to the storage and in-use positions, and wherein the biasing energy curve has a maximum when the cover is at a defined point between the storage and the in-use position such as to bias the cover away from said defined point and towards either the in-use position or the storage position, and wherein the control element comprises a cam surface and a cam follower.