Patent ID: 8701906

Claim:
A closure assembly for mixing ingredients with contents of a container to create a mixed beverage for dispensing, said closure assembly comprising: a drinking spout comprising: a first fluid passage; a fluid valve having a piercing element; a monolithic cap connected to said drinking spout, said cap comprising: an ingredient storage chamber having a cylindrical sidewall extending between a top and a bottom; an activating member having a second fluid passage, and an upper seal closing said second fluid passage and aligned with said piercing element of said drinking spout, said activating member at least partially disposed within said ingredient storage chamber and cooperating with said drinking spout to collectively form a push-pull assembly movable between an inactive pulled position and an active pushed position; a resilient flexible annular wall extending between said activating member and said top of said ingredient storage chamber; a lower seal closing said bottom of said ingredient storage chamber for retaining said ingredients; and, wherein a downward force on said drinking spout moving said push-pull assembly from said inactive pulled position to said active pushed position causes said piercing element to rupture said upper seal and said activating member to rupture said lower seal.