Aeronautics and astronautics – Aircraft structure – Fuselage and body construction
Patent
1988-10-11
1989-09-26
Barefoot, Galen L.
Aeronautics and astronautics
Aircraft structure
Fuselage and body construction
600 21, 52 66, 135 96, B64D 1100
Patent
active
048694460
ABSTRACT:
A system for protecting the cockpit of an aircraft from airborne contamination is described which comprises a generally tubular curtain of size corresponding to that of the canopy and cockpit and being pleated and collapsible along its length between an extended condition and a folded condition; a tray, attachable to and co-extensive with the canopy sill of the aircraft, the tray having a floor and inner and outer walls defining a circumferential recess for receiving the curtain in the folded condition; a lid for covering the tray with the bottom surface thereof in substantial contact with the inner and outer walls of the tray; a circumferential crimpable lip on each the floor of the tray and on the bottom surface of the lid for engaging respective ends of the curtain and providing peripheral hermetic seals between curtain and tray and between curtain and lid; inflatable circumferential seals in the sill and canopy for releasably attaching the tray to the sill and the lid to the canopy for providing hermetic seals between tray and sill and between lid and canopy; and a double zipper in the curtain along a pleat thereof for providing access to the cockpit with the curtain in the extended condition.
REFERENCES:
patent: 1806366 (1931-05-01), Pivak
patent: 1937520 (1933-12-01), Lightner
patent: 2811725 (1957-11-01), Cence
patent: 3160435 (1964-12-01), Smith
patent: 3212812 (1965-10-01), Kurtz
patent: 3402960 (1968-09-01), Erke
patent: 3766844 (1973-10-01), Donnelly
patent: 3877427 (1975-04-01), Alexeev et al.
patent: 4485489 (1984-12-01), Pilie et al.
patent: 4485534 (1984-12-01), Pilie et al.
Hubert James A.
Pickl William G.
Barefoot Galen L.
Scearce B. D.
Singer Donald J.
The United States of America as represented by the Secretary of
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