Liquid container dispensing cap structure

Claim 1

A liquid dispenser comprising: resiliently deformable container means including a main body having at least one side wall extending longitudinally; a transversely extending bottom wall means defining an opening, the opening being the only access into the container means and the wall means having a downwardly facing outer wall surface extending between the opening and said side wall of the main body; and a neck extending longitudinally and downwardly from the opening and having a transverse cross-sectional area substantially smaller than the area of the bottom wall means surrounding the neck, and defining at its lower end an opening; an inverted cap structure having at least one longitudinally extending side wall, a transversely extending bottom wall below said neck opening, and an outlet in the side wall above said opening; the cap structure side wall at its upper extremity cooperating with the side wall of the main body to form a liquid tight-seal; and a temperature compensated air pocket defined by liquid contained in the inverted cap, the outer surface of the neck, the inner surface of the side wall of the cap structure, and said outer wall surface of the bottom wall means whereby in use, temperature driven changes in a volume of air above liquid in the main body of the container means results in movement of the level of the liquid in the cap, the air pocket being proportioned relative to the container means to accommodate such changes in level below the outlet for a pre-selected range of temperatures so that there is no discharge at the outlet caused by such changes in the volume of air above the liquid.