Patents Assigned to MDY Engineering Corp.
  • Patent number: 6395221
    Abstract: A furnace system for recovering a non-ferrous metal from a charge of material containing the metal. The furnace system having a furnace chamber having walls defining a refractory chamber, the refractory chamber receiving the charge of material and the metal contained in the charge of material being heated into a flowable mode in the refractory chamber. The furnace system having at least one paddle radially projecting from an interior surface of the furnace chamber toward a longitudinal axis of the furnace chamber. Other features of the invention include a door having a closed position adjacent an inlet passage to the furnace chamber, the door having rollers and a suspension. Other features of the invention include a motor and a control unit which monitors torque to rotate the furnace chamber as an indication of viscosity of the charge of material. Methods of operating a furnace system for recovering non-ferrous metal from a charge of material containing the metal are also discussed.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: May 28, 2002
    Assignee: MDY Engineering Corp.
    Inventor: Moshe Yerushalmi