Abstract: In some embodiments, the present disclosure provides a method to process high pressure air into low pressure breathing air for one or more sealing and locking helmets and/or one or more air respirators. Other embodiments include a system configured to perform such a method and a manufacturing process of making such a system. In some embodiments, the breathing system automatically fills a local reserve bottle by pressure equalization. In this regard, the secondary supply bottles will fill the backup bottle when the console module operator (CMO) connects the secondary air supply to the system. The backup bottle will then be isolated from depletion during normal operation by means of a check valve to prevent back flow of the emergency cylinder into the secondary air supply. The local reserve bottle will protect against loss of air on any of the high pressure air hoses.

Abstract: A weld overlay machine assembly includes a carriage to support a hinged index bar and a wire feed assembly. The index bar has an auto height control unit and an index assembly to locate the position of a weld torch relative to the index bar. The assembly is configured to adjust the index bar to interior contours of the vessel while applying a layer of overlay material to a surface therein. The assembly runs along a track in the interior of the vessel. The assembly is configured to transition from sides of the vessel to that of the top or bottom domes wherein the curve of the domes are perpendicular to that of the radial sides. This transition is done without the need to add or remove components to the assembly. This is accomplished by providing the pivoting of the index bar relative to the track.