ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,371, issued on March 31.
"Drywall mud mixing device" was invented by David A Howard (McCalla, Ala.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A mixing device for use with an electric drill for mixing drywall mud, tile grout, concrete mixes and paint in various size containers and smaller applications. A mixing device is disclosed having a shaft, a central hub and mixing rods that are equidistant from each other and have a side vertical portion and a flat bottom portion such that the mixing device can efficiently mix all material that is on the sidewalls and bottom of a mixing container."
The patent was filed on June 26, 2023, under Application...