US Patent 10988936 Pergola louver tilt system

A pergola louver tilt system has a crossbeam with a track with a track groove. The system also has a post mounted on the crossbeam. A louver clip is pivotally mounted to post at a post joint. A louver is mounted to the louver clip. A pivot link is pivotally mounted to the louver clip. A stem is mounted to slide on the track groove. The pivot link is pivotally mounted to the stem at a stem connection pivot formed on the stem. A link connecting the stem to an adjacent stem, wherein the link includes a first link connection and a second link connection, wherein the first link connection connects to an adjacent stem, and wherein the second link connection connects to a subsequent stem.