US 5,984,141 · Granted 1999-11-16

Beverage storage and mixing device

A beverage device is provided for separately storing two beverages and for selectively dispensing the beverages sequentially or in combination. The beverage device includes a cap assembly attached to a conventional drink bottle, the cap assembly having an inner cylindrical housing rotatably nested within an outer cylindrical housing. The housings are generally hollow and present apertures which facilitate the dispensing or mixing of beverages when properly aligned. The inner housing includes a channel which allows a drink to be drawn through a spout from the bottle by a user upon alignment of apertures between the housings. The inner housing further includes a chamber for storing a beverage until apertures in the inner and outer housings are aligned to release the beverage into the bottle for mixing and dispensing. Alignment of appropriate housing apertures is accomplished by rotation of the inner housing within the outer housing. Rotation of the inner housing also causes the bottom wall of the outer housing to rupture, thus releasing the beverage stored in the inner housing into the bottle for mixing and dispensing. Concurrent alignment of appropriate apertures and rupture of the bottom wall facilitate efficient circulatory mixing of beverage substances. Alternative structures for puncturing the bottom wall of the outer housing or for allowing a fluid flow through the inner and outer housings is disclosed.

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