Patent ID: 7562771

Claim:
A bottle for two-component extemporaneous products, of the type that comprises: a container for a first component, which is provided with an upper mouth; a reservoir for containing a second component, which is inserted substantially coaxially in said mouth, is open upward and has a bottom constituted by a diaphragm; a perforator, which can be inserted in said reservoir and is suitable to pierce said diaphragm in order to mix the two components; and a removable cap for closing the container in an upward region, wherein: said cap comprises a lower annular portion that is locked to said container and an upper cylindrical portion that is suitable to cooperate with said perforator and is rigidly coupled to said annular portion at an intermediate weakened region suitable to act as sealing means, a downward pressure on said cylindrical portion being suitable to disengage it from said annular portion and to make said perforator slide in said reservoir in order to pierce the underlying diaphragm; said cylindrical portion and said perforator are formed monolithically in a single piece; and said single piece is constituted by an elongated hollow cylindrical body whose upper end is closed and whose lower end is open and protrudes into said annular portion so as to enter said reservoir and has a lower rim constituted by a piercing profile, downward pressure being suitable to disengage said single piece from the annular portion and make it slide inside the reservoir in order to pierce the diaphragm.