ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,421, issued on March 4, was assigned to SOS Solutions Inc. (Tonasket, Wash.).

"Two speed trailer jack with friction clutch" was invented by Samuel R. Peacemaker (Gilbert, Ariz.), Benjamin Peacemaker (Chandler, Ariz.), Travis Ernest Yoch (Woodbury, Minn.), Preston Elijan Collins-Holt (Saint Paul, Minn.) and Casimir August Sienkiewicz (Minneapolis).

According to the abstract* released by the U.S. Patent & Trademark Office: "A linear jack includes a coarse nut threadedly coupled to a first rotating screw and a first sleeve mounted to the coarse nut (the first rotating screw, the first sleeve, and the coarse nut collectively a high-speed assembly), and a second sleeve threadedly coup...