Semi-rigid, light weight fiber glass/polymide foam sandwich blan

Details Semi-rigid, light weight fiber glass/polymide foam sandwich blan Semi-rigid, light weight fiber glass/polymide foam sandwich blan

1994-04-06

1995-07-11

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

244119, 428284, 428285, 428287, 4283044, 428435, 4284735, 428920, B32B 702

Patent

active

054319900

ABSTRACT:
A semi-rigid, light weight insulation blanket is composed of a skeleton having porous cavities sandwiched between layers of fiber glass. The polyimide foam skeleton prevents sagging particularly in crown and upper sidewall areas of an aircraft thereby maintaining a predetermined offset from the skin fuselage reducing corrosion of the primary structure from moisture condensate. This configuration provides similar acoustic performance with reduced weight.

REFERENCES:
patent: 4363883 (1982-12-01), Gagliani et al.
patent: 4780167 (1988-10-01), Hill
patent: 4915998 (1990-04-01), Parenti et al.
patent: 4940112 (1990-07-01), O'Neill
patent: 5079292 (1992-01-01), Hoffman

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