Liquid containment system

Abstract

A container for storing and dispensing liquid includes a housing having a primary fluid storage cavity for a first liquid, for example, concentrated hydrogen peroxide, and a separate reservoir chamber within the housing so that a second diluent liquid within the reservoir chamber is normally isolated from the primary liquid and storage cavity. An internally movable member within the housing cooperates with the reservoir chamber to form a detent structure which provides selective interference reinforcement to ensure the integrity of sealing between the reservoir chamber and the cavity. The movable member is selectively displaced to relieve the interference reinforcement and sealing and to create a pathway for flow communication from the chamber into the cavity enabling an inter-mixture of the second diluent fluid and the primary fluid. For example, a diluent such as water can be stored and selectively dilute the residue of a primary hydrogen peroxide solution sufficiently to a reduced concentration which will be non-hazardous in subsequent general refuse disposal. In the illustrated embodiment, the reservoir chamber is formed within a cap structure on the housing in which a metallic foil wall forms the upper wall of both the reservoir chamber and the cap. A tubular conduit extends from and selectively moves with respect to the cap. The detent structure includes a catch structure peripherally formed on the tubular conduit and a seat structure engaged by the catch structure is formed on the reservoir chamber so that selective movement of the tubular conduit relieves the interference reinforcement and sealing by the detent structure when the primary and second fluids are intermixed.