Patent ID: 8544698

Claim:
A dispenser comprising: a support; a stationary dispensing tube; the stationary dispensing tube having a first end and a second end; the first end of the stationary dispensing tube secured to the support; the stationary dispensing tube having an air passage and a liquid passage, wherein the air passage and the liquid passage are separate from one another and extend upward from the support; a mixing chamber located at the second end of the stationary dispensing tube away from the support; a liquid container holding a liquid; the support secured to the liquid container; a keyed overcap for securing the container and stationary dispensing tube to a bottle support of a dispenser system; a compressible liquid chamber compressible to a compressed volume and biased to expand to an expanded volume; a dip tube extending from said compressible liquid chamber into said liquid in said liquid container, wherein compression of said compressible liquid chamber forces liquid within said compressible liquid chamber into the liquid passage in said stationary dispensing tube, and expansion of said compressible liquid chamber draws liquid up through said dip tube and into said compressible liquid chamber; a compressible air chamber compressible to a compressed volume and biased to expand to an expanded volume; wherein compression of said compressible air chamber forces air within said compressible air chamber into the air passage in said stationary dispensing tube.