HIGH-PRESSURE GAS JETTING DEVICE

摘要

A high-pressure gas jetting device comprising a vessel body (2) storing a gas tank (1) charged with a high-pressure carbon dioxide, a cap (3) screwed onto the vessel body (2), and a needle (11c) provided in the cap (3) and adapted to be axially moved upon relative rotation of the vessel body (2) and the cap (3) to pierce a sealing plate of the gas tank (1). Carbon dioxide within the gas tank (1) is permitted to be jetted from a tip end hole (10) of the cap (3) through a through hole (11d) formed axially of the needle (11c).