US Patent 7469507 Refractory system having improved anchoring stud

A refractory system of the type having a refractory material attached to a wall by anchoring studs has a plurality of improved anchoring studs. These studs have grooves extending from the top toward the bottom of the stud and refractory material in at least some of the grooves. Preferably the grooves are parallel to one another and to a longitudinal centerline through the stud. The studs may have a smooth section on the side wall adjacent the bottom. The bottom may be conical. Spikes may be provided on the top of the stud.