Single longitudinal valve ready to use hose end sprayer

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:
• 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 housing that has an outer surface and an inner surface, which defines a valve chamber configured to be in communication with the chemical and carrier fluid passages;
• a vent passage is communication with the valve chamber and the cavity;
• 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 first passage, a second passage, a chemical inlet passage that is in communication with the second passage, and a fourth 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, the chemical inlet passage is configured to be in communication with the chemical passage and the fourth passage is in communication with the vent passage;
• and
• a single sealing member positioned within a recess on the inner surface, the sealing member defining a sealing portion which extends around a first interface between the chemical fluid passage and the valve and a second interface between the vent passage and the valve.

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, said chemical passage having an outlet defining a chemical outlet axis;
• a carrier fluid passage configured to be in communication with a carrier fluid source, said carrier fluid passage having an outlet defining a carrier fluid outlet axis;
• a housing comprising an outer surface and an inner surface that defines 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 first passage, a second passage and a chemical inlet passage that is in communication with 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,
• the valve further configured to rotate about a first axis that is substantially parallel to the carrier fluid outlet axis and substantially perpendicular to the chemical outlet axis;
• wherein the housing includes a retention structure which is configured to engage a corresponding retention structure on the valve in a snap fit.

A method for assembling a sprayer head assembly comprising,

• providing a housing defining a valve chamber that is in communication with a chemical passage and a carrier fluid passage, the valve chamber defining at least one recess;
• providing a valve configured to fit within the valve chamber and having at least a first passage, a second passage and a chemical inlet passage that is in communication with the second passage,
• placing a sealing member into the recess;
• inserting the valve into the valve chamber;
• and
• coupling the valve to the housing in a snap fit.

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 first passage, a second passage and a chemical inlet passage that is in communication with 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 the valve chamber includes an annular ridge and the valve includes an annular recess configured to engage the annular ridge in a snap fit.