Abstract: Apparatus and related methods for increasing dissolved oxygen levels in water to remove iron and/or manganese. A dissolved oxygen treatment system includes a control system having a power supply and an electrode placed within a water chamber. At the electrode, water is converted into hydrogen gas and oxygen gas, wherein the oxygen gas remains in solution and increases the concentration of dissolved oxygen gas in the water. The dissolved oxygen treatment system can be manually configurable wherein the electrode is selectively wired to use either portions of or the whole electrode based upon testing of the water source with a dynamic electrode test system. Alternatively, the dissolved oxygen treatment system can include a smart controller, a variable power supply and a fixed size electrode, wherein the smart controller continually controls the power output to the fixed size electrode so as to control the amount of dissolved oxygen that is generated.

Abstract: A system for the treatment of water to remove metals and undesirable substances from well and groundwater so as to render the water potable is disclosed. The system employs microbubbles of oxygen, which remain suspended in water at a concentration above 100% of the calculated saturated concentration at a particular temperature and pressure. These microbubbles oxidize undesirable substances in the water, which substances include iron manganese, arsenic, antimony, chrome, aluminum, reduced sulfur compounds, pesticide residues, drug metabolites and/or bacteria. Microbubbles are produced by electrolysis or by sparging through a microorifice. A control system for the electrolytic system is disclosed.

Abstract: Bearing surfaces or other selected areas of component parts of a rotary cone earth boring rockbit are carburized or otherwise surface enriched by the sequential steps of coating the selected surface area to be enriched with a non-water based composition capable of effecting a corrosive protective seal thereabout; covering the coated area with a predetermined applied thickness of a carbonaceous paste; drying the paste and thereafter, subjecting the component part to an elevated temperature below which the coating is pyrolyzed to fully austenize the part and achieve a desired case depth followed by quenching, tempering, and finished machining as required.

Abstract: The journal and/or pilot bearings of a rotary cone earth boring bit are constructed to include alternating areas of wear resistant materials and anti-galling materials. The bearing matrix is formed by compressing a powdered alloy in the shape of the desired bearing element. The bearing matrix is sintered, thereby forming a porous bearing element. An anti-galling material is infiltrated into the porous matrix of the bearing element and the bearing element is hardened. The resulting bearing element includes areas of wear resistant materials and areas of anti-galling materials.