Patent ID: 8646966

Claim:
An improved disposable shaker comprising: an upper cover part; and a lower cup part, the upper cover part and the lower cup part being joinable, removably with respect to each other, with an axial and rotational engagement, the upper cover part forming in a single piece a multi-compartment container with several compartments for separately housing the ingredients of a cocktail to be prepared and sealingly closable at the free end thereof by means of a membrane fixable thereto, wherein teeth for tearing said membrane are provided at an upper part of the lower cup part, the teeth obtained in single piece with the lower cup part and having tearing tips adjacent to said membrane, in the closed or assembled position of the shaker, so that a relative axial and rotation movement between said upper cover part and said lower cup part causes a penetration of said tearing teeth into said membrane, with ensuing tearing of the latter and dropping of the cocktail ingredients from the upper cover part into the lower cup part for mixing thereof or shaking in the shaker, wherein the upper cover part and the lower cup part each have means for mutual support in the assembled position of the shaker, or said teeth are provided in said upper cover part, and said multi-compartment is provided for in said lower cup part, wherein said multi-compartment container comprises separation walls between the compartments of the ingredients of the cocktail said separation walls are substantially U-shaped transverse section hollow walls, open outwards and with the transverse side of the U-shape forming a surface for fixing said membrane, wherein said multicompartment container has a height with a longitudinal axis, and along the longitudinal axis said separation walls are joined into a single piece with an axial duct extended along the height of said multi-compartment container.