Inflatable liferafts of thermoplastic material and methods for t

Details Inflatable liferafts of thermoplastic material and methods for t Inflatable liferafts of thermoplastic material and methods for t

1976-07-02

1978-04-11

Blix, Trygve M.

B63C 904

Patent

active

040830705

ABSTRACT:
A method of making an inflatable liferaft from thermoplastic sheet material, wherein the thermoplastic sheet material which is to form a floor of the liferaft is heat welded around the periphery of the floor to the thermoplastic sheet material which is to form a peripheral inflatable buoyancy tube of the liferaft, after which edges of the material which is to form the tube are joined by heat welding to close the tube along its longitudinal extent.

REFERENCES:
patent: 2456086 (1948-12-01), Schwall

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