Composite structural beam

Details Composite structural beam Composite structural beam

1986-10-23

1988-05-03

Perham, Alfred C.

Static structures (e.g., buildings)

Machine or implement

52423, 52724, 52727, 52741, E04C 334, E04C 320

Patent

active

047411449

ABSTRACT:
Composite beam of polygonal cross-section comprises wooden external walls and a core of a material, such as concrete, providing the beam with its mechanical strength. The walls comprise flat elements assembled by means of bonded groove and tongue corner joints. Screws are embedded partially in the walls and partially in the core to bond the walls to the core.

REFERENCES:
patent: 250878 (1981-12-01), Brush
patent: 1533099 (1925-04-01), Carroll
patent: 1792040 (1931-02-01), Schaub
patent: 3304674 (1967-02-01), Ward
patent: 3634990 (1972-01-01), Pugh
patent: 4503648 (1985-03-01), Mahaffey

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