ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,334, issued on March 11.

"Roof coating sprayer and methods for roof coating" was invented by Mark Ballman (Kasota, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A roof coating sprayer including a cart assembly and a sprayer assembly. The cart assembly has a frame with a plurality of wheels. The frame has a sprayer support assembly with a lateral member, and vertical spray nozzle attachment members arranged along the lateral member. The attachment members each mount a spray nozzle and can be vertically and horizontally shifted relative to the lateral member. The roof coating sprayer can be pulled over the surface of a roof at a uniform rate, ...