Portable liquid oxygen unit with multiple operational orientations

A portable liquid oxygen (LOX) storage/delivery apparatus is provided, including an insulated LOX container having an interior, a top portion, bottom portion, and sidewall, the sidewall including a first and second side portion, both extending between the top and bottom portion, and a port system in communication with the interior for charging the container and for withdrawing LOX and gaseous oxygen. The gaseous oxygen is withdrawn from the container through a first outlet and LOX is withdrawn from the container through a second outlet when the container is positioned in a first orientation with the sidewall vertically oriented, as well as when the container is positioned in a second orientation with the second side portion oriented downwardly and with the first side portion upwardly and overlying the second side portion, and any position in between.