Patent ID: 8628029

Claim:
A sprayer for spraying a fluid comprising: a sprayer body including: a handle portion, and a nozzle portion removably coupled to the handle portion, the nozzle portion including a nozzle assembly that defines a fluid outlet, the nozzle assembly including a fluid conduit and a needle arranged within the fluid conduit, the needle being movable to a plurality of positions between a closed position and a fully opened position, the needle closing the fluid outlet in the closed position and fully opening the fluid outlet in the fully opened position, the nozzle portion further defining a reservoir coupler including a pressurization conduit internally disposed within; a fluid reservoir coupled to the reservoir coupler and in communication with the pressurization conduit, fluid outlet and fluid conduit, the fluid reservoir including a cap and first and second necks, the first neck being coupled to the sprayer body and the cap being removably coupled to the second neck, the second neck being configured such that the cap can be decoupled from the second neck while the fluid reservoir is coupled to the sprayer body; a trigger assembly coupled to the nozzle assembly and configured to move the needle as the trigger assembly is depressed; a flow adjustment mechanism coupled to the trigger assembly and configured to adjust a flow rate of the sprayer by limiting movement of the trigger assembly and the needle; and an air horn assembly including a collar removably coupled to the nozzle portion and a rotatable air horn arranged between the collar and nozzle portion, the air horn assembly configured to permit rotation of the air horn to a plurality of positions; wherein the air horn includes at least one air horn projection that limits rotation of the air horn between a first position corresponding to a vertical spray pattern and a second position corresponding to a horizontal spray pattern; and wherein the air horn assembly further comprises an air diffuser that includes at least one stop surface that interacts with the at least one air horn projection to limit rotation of the air horn, and wherein the air horn and the air diffuser include a detent mechanism that inhibits rotation of the air horn from a third position.