Abstract: A system and method for maintaining overpressure in a logging unit or other pressurized space through interruptions is disclosed. A backup air supply comprising tanks mounted to a frame is operatively connected to the ambient environment of the logging unit through a valve assembly which also connects a conventional pressure setup (e.g., pumps and filters from the external environment). The valve assembly comprises two auto valves, a shuttle valve, and a pressure sensor that allow the logging unit to switch from the conventional external air supply to the tanks when the pressure detected from the conventional air supply falls below a predetermined level. The valve assembly is independently housed and may be mounted or detached from the frame housing the backup tanks.

Abstract: A system and method for maintaining overpressure in a logging unit or other pressurized space through interruptions is disclosed. A backup air supply comprising tanks mounted to a frame is operatively connected to the ambient environment of the logging unit through a valve assembly which also connects a conventional pressure setup (e.g., pumps and filters from the external environment). The valve assembly comprises two auto valves, a shuttle valve, and a pressure sensor that allow the logging unit to switch from the conventional external air supply to the tanks when the pressure detected from the conventional air supply falls below a predetermined level. The valve assembly is independently housed and may be mounted or detached from the frame housing the backup tanks.

Abstract: A modular dynamic lifting framework for a standard ISO block shipping container is disclosed, comprising two side frames which are mounted to the sides of the shipping container, and a number of braces which secure the side frames. Each of the ISO blocks on the shipping container is contacted on at least three sides (in the X, Y, and Z axes) to ensure maximum carrying capacity with minimal effort in loading/unloading during a dynamic lifting situation. The modular construction obviates the need for the entire container to be lifted during installation of the framework, as one side can be installed at a time.