Hermetically sealed parachute container

Aeronautics and astronautics – Safety lowering devices – Parachutes

Patent

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Details

244149, 2065248, 220319, 2922566, B64D 1742

Patent

active

041695682

ABSTRACT:
A parachute container for aircrew ejection seats is designed with a rigid dy having a reduced volume and weight, and which is hermetically sealed and filled with an inert gas to extend service life without maintenance, the container being provided with a detachable, flexible cover to permit the container to expand in volume proportional to the reduction of external atmospheric pressure. The cover is made of an elastomeric material having elastic memory capable of returning to its preformed shape as atmospheric pressure increases, repeated in operations from sea level to high altitudes.

REFERENCES:
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patent: 2467024 (1949-04-01), Frieder et al.
patent: 2495341 (1950-01-01), Moran
patent: 2527020 (1950-10-01), Martin
patent: 2659557 (1953-11-01), Fogal et al.
patent: 2687263 (1954-08-01), Frieder et al.
patent: 2709519 (1955-05-01), Cushman
patent: 3138173 (1964-06-01), Hartman
patent: 3204810 (1965-09-01), Eckman
patent: 3943987 (1976-03-01), Rossi
patent: 4083468 (1978-04-01), Batchelor

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