Lattice core sandwich construction

Details Lattice core sandwich construction Lattice core sandwich construction

1993-06-23

1995-06-13

Loney, Donald J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

428 72, 428175, 428179, 428188, 428222, 428233, 428293, 428377, 52806, 52807, 52808, B32B 312, E04C 236

Patent

active

054241138

ABSTRACT:
A novel form of sandwich construction is disclosed. The lattice core sandh construction comprises of elongate lattice cells in side-by-side abutment, to present common, lengthwise flat sides that have facesheets co-cured thereto without any secondary bonding. Each lattice cell is formed by wrapping, in alterate patterns, fiber-reinforced, composite bands around commonly-shaped mandrels. Opppositely disposed face sheets are placed against flat sides and the construction co-cured. After co-curing, the mandrels are removed.

REFERENCES:
patent: 3542636 (1970-11-01), Wandel
patent: 3552277 (1971-01-01), Avital
patent: 3574103 (1971-04-01), Latkin
patent: 3871149 (1975-03-01), Georgii
patent: 4472473 (1984-09-01), Davis et al.
patent: 4769968 (1988-09-01), Davis et al.
patent: 5028474 (1991-07-01), Czaplicki
patent: 5162143 (1992-11-01), Porter et al.

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