Stock material or miscellaneous articles – Sheet – web – or layer weakened to permit separation through...
Patent
1983-12-12
1985-12-03
Gallagher, John J.
Stock material or miscellaneous articles
Sheet, web, or layer weakened to permit separation through...
403 2, 403 24, 403267, 428223, 428244, 428273, 428283, 4283157, 4283177, 428408, 428415, B65D 6528
Patent
active
045565929
ABSTRACT:
In a composite aircraft formed of graphite reinforced epoxy plates forming walls of the aircraft and walls of fuel tanks therein, for example, there is an adhesive seal for bonding overlapping faying plate surfaces together. The seal is formed of spaced glass fibers mixed with a conductive material and impregnated with a resin. The resin is cured between the surfaces of the plates to which it is bonded. The conductive filler is carbon in the form of approximate microspheres, generally hollow and having diameters in the range of 5 to 150 microns. The carbon microspheres function to weaken the adhesive seal between the plates so that they can be forcibly separated by a wedge without structural damage to the plates. The conductive material equalizes negative and positive static charges in the aircraft, particularly in fuel tanks, to eliminate electrical potential differences in the wall structures and in the materials therein.
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patent: 4177352 (1979-12-01), Sunbar et al.
patent: 4312912 (1982-01-01), Tamura
patent: 4323623 (1982-04-01), Ahrens et al.
Barnard Delbert J.
Gallagher John J.
Heberer Eugene O.
The Boeing Company
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