Patent ID: 8899226
Filing Date: 2014-12-02
Classification: A62B,F17C,Y10S

Abstract:
1. An apparatus for withdrawing a cryogenic liquid air from a container having an inner volume, wherein the inner volume is in fluid communication with a heat exchanger exterior of the container and through which the cryogenic liquid air flows for vaporization into breathable air, comprising: a conduit having a rigid tube portion extending into the inner volume of the container and having a flexible metallic hose portion with a first end attached to an end of the rigid tube portion disposed within the inner volume of the container and a metallic weighted head attached to a second end of the flexible metallic hose portion; and, wherein the rigid tube portion and flexible hose portion are in fluid communication with the inner volume of the container and the heat exchanger for drawing the liquid air from the container to the heat exchanger, and the container having a concave semi-spherical bottom end in the inner volume and the first end of the flexible hose portion being attached to the rigid tube portion a predetermined distance from the bottom end of the container forming a pivot area at a junction of the rigid tube portion and flexible hose portion so the weighted head follows a contour of the concave semi-spherical bottom end of the container without coming into contact with the concave semi-spherical bottom end to draw liquid air from the container independent of an orientation of the container.