Automatic inflator

Dispensing – Gas or vapor dispensing – With cutter or punch

Patent

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Details

9316, B63C 924

Patent

active

042238056

ABSTRACT:
There is disclosed an inflator for the inflation of inflatable articles such as life vests and the like, such inflator being operated automatically upon being subjected to water as upon the ditching or parachuting of an aviator wearing a life vest provided with such inflator. In the preferred embodiment of the inflator disclosed, the automatically operating portion of it is embodied as an attachment to a known manually operated inflator, the resulting inflator being capable of operation both manually and automatically. The automatically operating portion of the inflator incorporates a latch which holds a plunger operated by a coil compression spring in cocked condition until the latch releases the plunger, which thereafter thrusts a piercing pin against and through the sealing diaphragm of a gas-containing capsule. The latch is provided with a water-destructible member which retains the latch in plunger cocking position until the water-destructible member is subjected to water in an amount sufficient to weaken it so that the latch releases the plunger.

REFERENCES:
patent: 2480033 (1949-08-01), Kramer
patent: 2778434 (1957-01-01), Hastert et al.
patent: 3266669 (1966-08-01), Vuyosevich
patent: 3597780 (1971-08-01), Coyle
patent: 3809288 (1974-04-01), Mackal
patent: 3997079 (1976-12-01), Nieman

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