US Patent 8016013 Pull bar screen apparatus and system

A pull bar screen apparatus and system in which screen is mechanically attached directly to a pull bar. Weld-less friction-lock cold-joining of screen and pull bar provides an improved pull-bar screen apparatus used in retractable pull screens. The pull bar screen apparatus and system remove the need for attaching a vinyl strip to the screen. Instead, the screen is flattened to retain its form and structural integrity. On one elongated end of the screen, an upper and lower lock bar are placed on either side of the screen. Corrugated ridges in the lock bars pinch the screen and hold it in place. A lock bar casing is placed under pressure around the upper and lower lock bars which hold the lock bars in position and thereby retain the screen.