US Patent 7621091 Portable floor

A portable floor system having a plurality of floor panels configured for connection along abutting edges to form an extended floor surface. Each panel has a planar portion including a top surface, a core, and a bottom surface. Extruded edge portions include tongues along two edges and complementary tongues along the other two edges. Each edge also includes a panel connecting assembly along each edge, having a lock device extending from an edge into the core. The lock device mounts directly against an anchor element. The anchor element extends through the bottom surface and having a connector receiving portion.