ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,115, issued on Jan. 20.
"Installation tool for self-tapping rivet fastener" was invented by Wei-Chih Chen (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An installation tool for a self-tapping rivet fastener contains: a body, a movable sleeve, a handle, a single-direction thrust bearing, a switcher, a drive rod, a transmission shaft, a cap, a locking element, and a screw nut. The body includes multiple ribs, two protrusions, two slots, a circular orifice, a stepped fringe, a positioning orifice, a threaded section, and a connection groove. The movable sleeve moves on the body. The handle includes a hollowly circular fitting portion...