Patent ID: 7788865

Claim:
A flexible drywall trimming element for bridging two sections of drywall and configured for securing to the drywall by joint compound, comprising: first and second opposing flanges connected by a central region, each of the flanges having an interior surface and an exterior surface, the interior surfaces adapted to be positioned on or adjacent to a respective one of the drywall sections, and the exterior surfaces adapted for orienting away from the drywall sections, the interior and exterior surfaces each defining respective surface planes, the interior surface of each flange having a plurality of upstanding longitudinally oriented ribs extending outwardly from the surface, each of the ribs extending away from their respective interior surfaces to define a void space between the surface adjacent to the ribs and an end of the ribs, such that a line extending outwardly from and normal to the surface of the flange adjacent to the ribs traverses through the void space and then subsequently contacts the ribs, each of the ribs formed at an angle relative to their respective surfaces about equal to the other ribs, and at an angle less than 90 degrees, wherein when joint compound is disposed between the interior surface of the flanges and the drywall, the joint compound fills the void space and hardens to secure the drywall trimming element to the wall, and wherein the central region is devoid of ribs.