Patent ID: 8622209

Claim:
A container for allowing selective combination of a plurality of materials, the container comprising: a base comprising a peripheral wall defining an interior portion and at least one divider wall extending through the interior portion, the divider wall and peripheral wall defining at least two cavities, each cavity configured to contain one of the plurality of materials, the base further comprising a base sealing rim adjacent an upper perimeter of the peripheral wall a lid configured to rotate with respect to the base to align a keyway and a key, one of the lid or the base including the keyway and the other of the lid or the base including the key, the lid comprising a cutter and a lid sealing track; and at least one seal extending over and being bonded to the divider wall and the base sealing rim, the seal being configured to hold the plurality of materials in the respective cavities, wherein: upon alignment of the key and the keyway, the lid is configured to be moved vertically toward the base and puncture the seal with the cutter so as to allow intermixing of the plurality of materials, upon puncture of the seal, the lid sealing track is configured to abut the base sealing rim and trap an outermost portion of the seal between the base sealing rim and the lid sealing track, engagement of the key in the keyway prevents rotation of the lid with respect to the base while the seal is being punctured, the cutter is configured to cut the seal adjacent the outermost portion of the seal such that the seal remains bonded to the divider wall and a tail end portion of the seal is disposed between the cutter and the peripheral wall of the base, the tail end portion being disposed radially inwardly from and adjacent the outermost portion of the seal, and wherein upon puncture of the seal, the seal does not obstruct the materials from exiting the cavities, the lid defines a plurality of perforations configured to let gasses escape therethrough, and the lid includes a semi-permeable membrane covering the perforations, the membrane being bonded to an interior surface of the lid.