Patent ID: 7328857

Claim:
A sprayer head assembly for connection to a container that defines a cavity for storing a chemical to be sprayed; the sprayer head assembly comprising: a chemical passage configured to be in communication with the cavity; a carrier fluid passage configured to be in communication with a carrier fluid source; a valve chamber configured to be in communication with the chemical and carrier fluid passages; and a valve moveably positioned within the valve chamber between at least a first position, a second position and a third position, the valve defining a fist passage, a second passage and a chemical inlet passage that is in communication wit the second passage, the valve being configured such that, in the first position, the valve blocks the chemical and carrier fluid passages, in the second position, the first passage is configured to be in communication with the carrier fluid passage while the valve blocks the chemical passage, and in the third position, the second passage is configured to be in communication with the carrier fluid passage and the chemical inlet passage is configured to be in communication with the chemical passage, wherein the valve rotates about a longitudinal axis and is nested within the valve chamber such that the valve is prevented from moving radially with respect to the longitudinal axis by the valve chamber, wherein valve includes an annular flange that is configured to engage an annular ridge positioned on the sprayer head assembly.