ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,951, issued on Jan. 27.
"Threaded, booming, cylindrical shims" was invented by Charles James Spofford (Bernardston, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shim for appliances such as windows and doors is described herein. The shim includes a stack of two or more cylinders threaded together such that twisting one or more of the cylinders causes the shim to extend. A collar cylinder may be placed through a jamb of the door or window, where an inner wall of the collar has threads. An inner cylinder is placed inside the collar, where the inner cylinder has male threads, and the inner cylinder is configured to extend when the inner cylind...