US Patent 8960424 Dispensing capsule with snap in activation chamber

A dispensing capsule has a cap body having an internal recess; a chamber removably snapped into the internal recess of the cap body, the chamber including a flexible actuator and a sealing member sealing a lower portion of the chamber; and a hollow plunger slidingly disposed within the chamber, wherein a top portion of the hollow plunger engages the flexible actuator of the chamber. The flexible actuator is configured to deform and engage the hollow plunger, causing a distal end of the hollow plunger to puncture the sealing member, dispensing an ingredient stored in the chamber. The distal end of the plunger may have a beveled cutting surface. The chamber includes two circumferentially disposed races defining an annular groove, wherein an annular protrusion in the internal recess of the cap body removably engages the annular groove of the chamber.