Abstract: Baby-bottle attachment for holding dry formula separated from water in bottle has a bottom portion with internal bottle-mating threads that mate to a threaded top on a baby bottle. The attachment includes a partition having an aperture and a seal on its upper surface. The bottom portion has channels partially imbedded therein. An upper chamber has external threads that mate with a nipple. The upper chamber has a partially open bottom with an off-center aperture. A seal pad is adhered underneath the at least partially open bottom of the upper chamber. A top member has a depressible release button that extends from the end, and is attached to outer surface near the bottom of the upper chamber.

Abstract: Baby-bottle attachment for holding dry formula separated from water in bottle having a bottom portion that has internal bottle-mating threads at a lower open end to mate to a threaded top on baby bottle. A partition having an orifice centrically located therein and a seal adhered to its upper surface is provided. Channels are partially imbedded around a portion of upper inner circumference of such bottom part. An upper chamber has an open end with external threads to mate with a nipple and a flanged partially open bottom end with an off-center aperture. A seal pad is adhered underneath a portion of the partially open bottom end. A top member has a depressible release button attached to the distal end of a strip parallel to its bottom flange and extending from the proximal end attached to outer surface near bottom of the upper cup-like chamber. The final essential element is a bolt and nut assembly having a sealing washer attached to a flat surface of such nut.