ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,469, issued on March 31, was assigned to NEW REVO BRAND GROUP LLC (Maple Grove, Minn.).
"Leveling knob system and mechanism" was invented by Matthew C. Morris (Minneapolis), Ryan Chernik (New Brighton, Minn.), Ryan Jacobson (Andover, Minn.) and Howard Tripp (Plymouth, Minn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A leveling system for a clamping device can include a base having a top, a bottom, and a plurality of sides; and a leveling knob positioned on one of the plurality of sides of the base and comprising a spring, a pin, and a knob connected at an outer end of the shaft. The spring can be compressible when the knob is pulled away from t...