| 摘要 |
Apparatus for supplying pressurized gas including a container having an outlet opening and an open ended tubular section providing a second opening aligned with the outlet, and a valving device for sealing both openings. The valving device comprises a piston which is held in sealing relationship with the outlet by the pressure in the container and a second piston positioned in the tubular section for partially balancing the pressure acting on the fist piston. The second piston carries an explosive charge and a piston surface to be acted upon by the gas generated by the explosive. Detonation of the explosive charge drives the valving device into an open position.
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