High strength, light weight structural composite and method of p

Details High strength, light weight structural composite and method of p High strength, light weight structural composite and method of p

1987-02-13

1989-01-31

McCamish, Marion C.

Stock material or miscellaneous articles

Sheet including cover or casing

Foamed or expanded material encased

404 46, 428 73, 428 76, 428117, 428119, 428138, 4283088, 428417, 428438, 4285371, B32B 300

Patent

active

048014834

ABSTRACT:
A light weight structural composite comprised of a cellular core having high dynamic load-bearing properties and a fiber reinforced resinous skin on all edges of the core and on the top and bottom surfaces thereof. The cellular core may comprise an array of balsa wood blocks, the skin may comprise a fiberglass reinforced epoxy or polyester resin, and the core and skin may be formed into a monolithic composite which is particularly suitable for use as a high strength to weight ratio ground opening cover.

REFERENCES:
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patent: 3325037 (1967-06-01), Kohn et al.
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patent: 3487489 (1970-01-01), Kuhns
patent: 3616111 (1971-10-01), Raech, Jr.
patent: 3901993 (1975-10-01), Phillips, Jr.
patent: 3905172 (1975-09-01), Blackburn
patent: 4209486 (1980-06-01), Ross
patent: 4271649 (1981-06-01), Belanger
patent: 4343846 (1982-08-01), Kohn
patent: 4533589 (1985-10-01), Sewell

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