Composite beam having a hollow cross section

Details Composite beam having a hollow cross section Composite beam having a hollow cross section

1991-07-19

1993-08-24

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Glass, ceramic, or sintered, fused, fired, or calcined metal...

428 363, 428 361, 428 3691, 428109, 428113, 428228, 428246, 428273, 428301, 52724, 52725, 52717, 212266, 138140, E04C 328

Patent

active

052387160

ABSTRACT:
A composite beam having high compressive and tensile strength is disclosed. The beam is also very lightweight, has a high modulus of elasticity, and is able to support heavy loads in applications such as in use in aerial lift devices. High dielectric resistance is also a very important property exhibited by the beam. There are three structural layers in the beam including an inner layer comprising a wound filament, a middle layer comprising a plurality of plates, and an outer layer also comprising a woven or a non-woven material.

REFERENCES:
patent: 3992836 (1976-11-01), Mitra
patent: 4347019 (1982-08-01), Metz
patent: 5108810 (1992-04-01), Williams

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