Inflatable life vest

Details Inflatable life vest Inflatable life vest

1976-08-23

1977-12-06

Blix, Trygve M.

B63C 916

Patent

active

040608670

ABSTRACT:
In a double-tubed life vest with the inside marginal edges of the tubes fastened to each other temporary connecting members on the tubes releasably hold the outside marginal edges of the tubes together. The temporary connecting members are released when the gas pressure in the vest is greater than a given pressure. The gas occupies a first volume when the temporary connecting members are holding the corresponding sections of the tubes together such that the first volume of gas at the first pressure provides sufficient buoyancy to the life vest to support a body. The gas can occupy a second volume when the temporary connecting members are released to allow the gas to occupy a greater volume such that the addition of more gas in the tubes provides greater buoyancy to the body.

REFERENCES:
patent: 2046335 (1936-07-01), Manson
patent: 2128423 (1938-08-01), Manson
patent: 2621342 (1952-12-01), Boyle
patent: 3329982 (1967-07-01), Zannoni

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