Patent 11833553 was granted and assigned to W.M Barr & Company, Inc. on December, 2023 by the United States Patent and Trademark Office.
A spray wand for use with a chemical or chemical formulation in solid form. The wand hose end has a wand hose end valve for control of water flow from a hose. A refill cartridge having a swirl chamber may be attached to the hollow tube. The refill cartridge has at least one nub, indent and/or external channel or groove on its external surface.