Patent ID: 8292587

Claim:
A turbine blade assembly comprising: an airfoil including a convex suction side wall, a concave pressure side wall, a leading edge, a trailing edge, a root, and a tip, the convex suction side wall, the concave pressure side wall, and the tip each including an interior surface defining an internal cooling circuit; a platform including a platform center flow path, a first side, a second side, an edge, a first passage, and a first groove, wherein the platform center flow path extends through the platform in communication with the internal cooling circuit, the airfoil extends from the first side of the platform, the second side of the platform is located opposite the platform from the first side of the platform, the edge of the platform extends between the first side of the platform and the second side of the platform, the first passage of the platform is formed between the first side of the platform and the second side of the platform and includes a first inlet and a first outlet, the first passage of the platform extends from the platform center flow path toward the edge of the platform, and the first groove of the platform is formed on the second side of the platform and extends from the first outlet of the first passage of the platform toward the edge of the platform; a tip shroud formed at the tip of the airfoil, the tip shroud including a tip shroud flow path, a first side, a second side, an edge, a second passage, and a second groove, wherein the airfoil extends from the first side of the tip shroud, the tip shroud flow path extends through the tip shroud, the second side of the tip shroud is located opposite the tip shroud from the first side of the tip shroud, the edge of the tip shroud extends between the first side of the tip shroud and the second side of the tip shroud, the second passage of the tip shroud is formed between the first side of the tip shroud and the second side of the tip shroud, the second passage of the tip shroud extends from the tip shroud flow path toward the edge of the tip shroud, and the second groove of the tip shroud is formed on the second side of the tip shroud and extends from the second passage of the tip shroud toward the edge of the tip shroud; a first cover plate disposed over the second side of the platform covering the first groove of the platform; and a second cover plate disposed over the second side of the tip shroud and over the second groove of the tip shroud.