Bottle with two or more separate compartments

Claim 1

A CONTAINER FOR KEEPING SEPARATED AT LEAST TWO PORTIONS OF DIFFERENT INGREDIENTS, COMPRISING AN UPPER CHAMBER, AND AT LEAST ONE LOWER CHAMBER, COMMUNICATION BETWEEN SAID CHAMBERS BEING PROVIDED BY AN ORIFICE INTERVENING BETWEEN THE TWO SAID CHAMBERS, SAID ORIFICE BEING FORMED BY AN ANNULAR RIB PROJECTING INWARDLY FROM THE INSIDE WALL OF THE CONTAINER, WHEREIN SAID UPPER CHAMBER HAS A NECK PORTION OF GREATER DIAMETER THAN THE SAID ORIFICE, IN COMBINATION WITH A HOLLOW, CONCAVE STOPPER HAVING A SEALING SURFACE AT ONE END, AND A HANDLE AT THE OPPOSITE END THEREOF, WHEREIN SAID SEALING SURFACE IS OF A SMALLER DIAMETER THAN THE NECK PORTION, AND OF GREATER DIAMETER THAN THE ORIFICE, SAID RIB HAVING AN UPWARDLY EXTENDING ABUTTING SURFACE ADAPTED TO COACT WITH AN INTERMEDIATE PORTION OF THE CONCAVE SURFACE OF THE SAID SEALING SURFACE OF THE STOPPER TO PREVENT COMMUNICATION BETWEEN THE SAID CHAMBERS WHEN THE STOPPER IS IN A LOWER POSITION IN ABUTMENT WITH THE SAID RIB, AND WILL PERMIT COMMUNICATION BETWEEN THE SAID CHAMBERS WHEN THE SAID STOPPER IS RAISED BY THE HANDLE TO AN UPPER POSITION, AND WHEREIN THE SAID STOPPER IS CONTOURED IN A STREAMLINED FASHION, FLARING OUTWARDLY FROM ITS CENTER TO THE TERMINAL END THEREOF IN A DOWNWARD DIRECTION, THE HOLLOW CONCAVITY OF THE STOPPER BEING ADJACENT AND IN COMMUNICATION WITH THE LOWER CHAMBER, AND PRESENTING A STREAMLINED UPWARDLY CONVERGING SURFACE WITHIN THE UPPER CHAMBER, WHEREBY THE STOPPER CAN BE MORE EASILY MOVED FROM THE LOWER OF THE UPPER POSITION BECAUSE OF ITS STREAMLINED CONTOUR.