Patent ID: 8403183

Claim:
A fluid container for attaching to a sprayer having an inlet port, the container comprising: a bottom wall; side wall structure; a neck having an opening, wherein the bottom wall, the side wall structure, and the neck defines an interior space of the container; and a container adapter including (i) an outer wall that terminates at an open end of the adapter, the outer wall being dimensioned to engage the neck of the container, (ii) a hollow inlet port that terminates at an upstream open end and that terminates at a downstream open end, and (iii) a hollow inner wall connected to the outer wall and connected to the upstream open end of the inlet port, the inner wall including an alignment structure, wherein the inner wall of the adapter includes a generally funnel shaped section; wherein the alignment structure is configured to orient the container adapter with the sprayer in a specific angular relationship, helping to ensure that only refill containers containing a liquid appropriate for use with the sprayer are used with the sprayer, and wherein the alignment structure comprises a depression in the inner wall of the adapter, the depression having a closed end.