ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,976, issued on Oct. 7.
"Multiple angle verification measuring apparatus" was invented by Jonathan Duane Robinson (Hanover Park, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An angle measuring apparatus includes a housing that has a circular aperture, and a rectangular slot positioned such that a length of the slot is in parallel with the circular aperture. A rotating assembly has a weight, positioned within the circular aperture and is operative to rotate, with the weight maintaining the position of the rotating assembly with respect to the housing as the housing is moved angularly with respect to a reference position, such that the weight pos...