Strain reduced airplane skin

Details Strain reduced airplane skin Strain reduced airplane skin

1989-12-26

1993-10-12

Barefoot, Galen

Aeronautics and astronautics

Aircraft structure

244123, 244133, B64C 140

Patent

active

052518493

ABSTRACT:
An aircraft has the space between the bulkheads on the interior of the aircraft filled with a polyisocyanurate solid closed cell foam material. The foam is applied so that it adheres to both the inside of the aluminum skin of the fuselage and the facing sides of the bulkheads. The foam may be applied by either spraying or by pouring the resin with appropriate catalyst materials to cause the resin to form the foam. The foam acts to significantly strengthen the aircraft structure and thereby increase the time of usage of aging aircraft before the catastrophic failure of the adherence of the skin to the bulkheads.

REFERENCES:
patent: 3160549 (1964-12-01), Caldwell et al.
patent: 3229935 (1966-01-01), Bellanea
patent: 3305196 (1967-02-01), Hanlon
patent: 3416756 (1968-12-01), Windecken
patent: 4129697 (1978-12-01), Schapel et al.
patent: 4671471 (1987-06-01), Patmont
patent: 4692477 (1987-09-01), Jacobina
patent: 4695618 (1987-09-01), Mowrer
patent: 4791148 (1988-12-01), Riley et al.

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