Underwater escape apparatus

Details Underwater escape apparatus Underwater escape apparatus

1975-05-20

1976-07-20

Gilliam, Paul R.

Ships

Building

Canal and ferry boats

114209, B63C 900

Patent

active

039699030

ABSTRACT:
Underwater escape apparatus, intended for use in conjunction with an underwater escape suit provided with means for imparting to the suit an ascent velocity to permit escape from an underwater location to the water surface, comprises, on the one hand, a parachute folded within a container and provided with a pressure responsive member such as a piston, and, on the other hand, a pressure gas cylinder connected to the container by a flexible conduit communicating with the face of the piston opposite the parachute, and equipped with obturating means and means for automatically triggering opening thereof as soon as the immersion depth becomes smaller than a predetermined threshold. Preferably the apparatus includes means for setting the automatic opening device only after the immersion depth has exceeded a predetermined limit beyond which there would be a danger of gaseous embolism taking place during the ascent. The container containing the parachute and the device for automatic triggering of opening of the latter are separately secured to the escape suit, and the setting depth and the depth of automatic triggering are regulatable independently of each other.

REFERENCES:
patent: 3495413 (1970-02-01), Pinto
patent: 3902327 (1975-09-01), Guillerm et al.

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