PROBLEM TO BE SOLVED: To provide an extremely low temperature recovery apparatus which can be used regardless of a height of a user, and which has high portability and which can disperse a coolant gas in a uniform manner.SOLUTION: An extremely low temperature recovery apparatus 1 comprises: a step base on which a user rides； a cover cylinder body 10 which can be lifted and which can surround a body of the user who rides on teh step base； and a pair of nozzles which are provided on a lower side of the step base in the cover cylinder body 10, and jet at high pressure, a coolant gas of a liquid nitrogen. The cover cylinder body 10 is extended and shrunk along a lifting support part 16 which is lifted up and down along a guide rod 13 attached to a lower frame 12. The nozzles are provided toward outside of a radial direction, and have on its end part, a guide line extending in a horizontal direction at an upward angle. The coolant gas jetted from the nozzle is guided to the guide line, and is revolved in a spiral state along an inner peripheral face of the cover cylinder body 10 from a gap between the step base and the cover cylinder body 10 and is fed upward and agitated.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2019,JPO&INPIT【課題】可搬性が高く、冷却ガスを均等に分散できる上に使用者の高さの違いに関わらず使用可能である。【解決手段】極低温リカバリー装置１は、使用者が乗るステップ台と、ステップ台に乗った使用者の身体を囲うことができる昇降可能なカバー筒体１０と、カバー筒体１０内でステップ台の下側に設けていて液体窒素の冷却ガスを高圧で噴出する一対のノズルとを備えた。カバー筒体１０は下部フレーム１２に取り付けたガイドロッド１３に沿って昇降する昇降支持部１６に沿って伸縮する。ノズルは径方向外側に向けて設け、先端に水平方向と上向き角度で延びるガイド線を設けた。ノズルから噴出する冷却ガスはガイド線にガイドされて、ステップ台とカバー筒体１０の隙間からカバー筒体１０の内周面に沿って螺旋状に旋回しながら上方に送られて撹拌される。【選択図】図１
