Abstract: Galvanically protected reinforcement dowel pins and methods of producing the same. In one embodiment, the reinforcement dowel pins comprise a bar or tube, the longitudinal exposed surfaces of which are covered by a heavy gauge of a sacrificial metal, such as zinc, zinc alloy, magnesium, magnesium alloy, aluminum, or aluminum alloy. The bar or tube comprises steel, carbon steel, or other ferrous metal. The heavy gauge of sacrificial metal is applied to the ferrous metal by various processes, such as roll bonding, lock seaming, welding, die casting, flame spraying, plasma spraying, dipping, sinking, and drawing. The resulting reinforcement dowel pins resist corrosion without sacrificing structural integrity, and are reasonable in materials and manufacturing costs. These dowel pins may be installed in adjacent concrete panels using conventional methods, and therefore do not introduce additional costs in installation.

Abstract: The present invention is an oil system component comprising and a method for its making, designed to neutralize acid by utilizing components comprising zinc or a zinc-coating. According to one embodiment, a multipurpose component is provided by spraying a standard component such as the oil sump, oil screen, and/or oil filter with a zinc plasma in an inert atmosphere to create an acid-neutralizing coating on the component. The present invention is particularly suited for incorporation into a standard oil filter by fabricating the casing and or an internal screen of zinc coated materials and/or by incorporating zinc coated product or materials into the mechanical filter material.