US Patent 8147120 Disposable shaker

A disposable shaker (1) made of synthetic material having a cup-like cover (3) and a cup-like base (2) which can be removably connected together and have or form the one or the other (2; 3) a container with a plurality of bins (4) which contain the ingredients for a desired cocktail and are closed by a membrane (6) which is tearable by means of tearing teeth (7) in one-piece with said cover (3) or base (2) inside thereof. In a preferred embodiment the shaker (1) is provided with unambiguous guiding manipulation means (20) for the membrane tearing stroke and shaker opening stroke after the mixing or shaking phase for the cocktail preparation.