Abstract: A cover structure for covering a portion of a surface of a body of water includes a first plate having a brim, a second plate having a brim, the second plate overlying and spaced apart from the first plate, a support structure coupling the first plate to the second plate, and the cover structure having a specific gravity for maintaining the first plate in a position covering a portion of the surface of a body of water, and maintaining the second plate below the portion of the surface of the body of water.

Abstract: A filtering mechanism for especially well suited for corrosive mists which are generated from electro-refining systems. A layer of bristles forming a brush is secured to an electrode within the electro-refining system. As the electro-refining system produces a mist of corrosive chemicals above the slurry, the mist rises through the bristles. As the mist passes through the bristles, the corrosive chemical adheres to the bristles; hence, the corrosive chemical does not pass into the surrounding environment. Periodically, the bristles are washed to remove the corrosive chemicals. In one embodiment of the invention, the edge between the electrodes and the wall of the slurry bath are partially sealed with a pliable member which assists in directing the mist through the bristles.

Abstract: An improved insulator which assists operation of electrodes, particularly in the electro-winning process. Each insulator extends around the electrode and is secured by its ends to the electrode. Bulges or bumps on the insulators maintain a predefined distance between the electrodes when they are placed within the slurry bath. The insulators are preferably circular in shape with an interior channel; at selected points, the channel is crushed to provide for additional mechanical strength to the insulator. The top ends of the insulator are connected to the electrode either through the use of a mounting bracket or by way of hooked ends which are secured to the top portion of the electrode.

Abstract: A filtering mechanism for especially well suited for corrosive mists which are generated from electro-refining systems. A layer of bristles forming a brush is secured to an electrode within the electro-refining system. As the electro-refining system produces a mist of corrosive chemicals above the slurry, the mist rises through the bristles. As the mist passes through the bristles, the corrosive chemical adheres to the bristles; hence, the corrosive chemical does not pass into the surrounding environment. Periodically, the bristles are washed to remove the corrosive chemicals. In one embodiment of the invention, the edge between the electrodes and the wall of the slurry bath are partially sealed with a pliable member which assists in directing the mist through the bristles.