Aeronautics and astronautics – Aircraft structure – Fuselage and body construction
Patent
1983-02-09
1984-08-14
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft structure
Fuselage and body construction
297466, 128134, 280801, B64D 2506
Patent
active
044652500
ABSTRACT:
A windblast leg protector assembly for use by an occupant of an open-type ejection seat of an aircraft. The assembly includes, for each leg of the seat occupant, a modification to the occupant's conventional anti-acceleration suit by way of a piece of nylon fabric (with concave configurated load spreading cuts, and with a ring captured thereon) attached to the thigh portion, and a similar piece of nylon fabric with a ring captured thereon attached to the calf portion, of each full length leg member of the anti-acceleration suit. Restraining/retracting straps which are connected to, and which remain with the ejection seat, are also constituent components of the windblast leg protector assembly. Snap hooks, which are captured on the slack restraining/retracting straps, are releasably connected by the occupant, after sitting down in the ejection seat, to the captured rings on the thigh and the calf portions of the anti-acceleration suit being worn. During ejection, the slack restraining/retracting straps are automatically retracted and tensioned, thereby pulling downwardly on the captured rings, their retaining members, the leg members of the suit, and the legs of the occupant. As a result, the legs of the occupant are restrained, and thereby are prevented from being extended into the windblast. Although the thighs of the occupant are downwardly restrained during ejection, the calves of the seated occupant's legs move upwardly to relieve any tension load in the occupant's knees.
REFERENCES:
patent: 2528532 (1950-11-01), Martin
patent: 2971730 (1961-02-01), Martin
patent: 3074669 (1963-01-01), Bohlin
patent: 3218103 (1965-11-01), Boyce
patent: 3249385 (1966-05-01), Boyce et al.
patent: 3302633 (1967-02-01), Vykukal
patent: 3329464 (1967-07-01), Barwood et al.
patent: 3502073 (1970-03-01), Stanley
patent: 4359200 (1982-11-01), Brevard et al.
Barefoot Galen L.
Erlich Jacob N.
Singer Donald J.
The United States of America as represented by the Secretary of
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