Sandwich panel structure

Details Sandwich panel structure Sandwich panel structure

1977-05-02

1978-10-10

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including grain, strips, or filamentary elements in...

9 6R, 9 6W, 9 6P, 428 71, 428 72, 428114, 428184, 428186, 428320, B32B 512, B32B 328

Patent

active

041197500

ABSTRACT:
A structural panel material of the sandwich-type construction includes inner and outer facings and a core bonded between the facings. The core includes a plurality of blocks of lightweight core material, such as rigid or semi-rigid plastic foam, balsa wood, or a combination of plastic foam. These blocks are arranged in strips. The strips are joined together by corrugated sheet material. In a preferred embodiment, double-sided corrugated paperboard is used to join the lightweight structural strips. The resulting core material has the highly desirable characteristics of being flexible enough to conform to a mold shape under gravity and with the application of little or no external pressure so that special jigs are not required.

REFERENCES:
patent: 2518550 (1950-08-01), Ives
patent: 2863797 (1958-12-01), Meyer
patent: 3080267 (1963-03-01), Schmalz
patent: 3376185 (1968-04-01), Shook et al.
patent: 3544417 (1970-12-01), Corzine
patent: 3573144 (1971-03-01), Andersen
patent: 4032689 (1977-06-01), Johnson et al.

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