Pre-cambered steel beam

Details Pre-cambered steel beam Pre-cambered steel beam

1980-10-31

1984-01-10

Ridgill, Jr., James L.

Static structures (e.g., buildings)

Window or window sash, sill, mullion, or glazing

Decorative grill attached to sash

52639, 52729, E04B 126, E06B 104

Patent

active

044246528

ABSTRACT:
A precambered roll formed metal structural beam and method of making same. The precambered beam may be used in wood frame constructions to replace large and increasingly expensive wooden header beams, or it may be used in steel beam structures and framework where the precambering permits use of lighter beams without resulting in undesirable visible sagging. The beams maybe fabricated in various cross sections and with an amount of precamber tailored to a specific job.

REFERENCES:
patent: 542283 (1895-07-01), Rousseau
patent: 768594 (1904-08-01), Finlay
patent: 1335609 (1920-03-01), Schneller
patent: 2039398 (1936-05-01), Dye
patent: 2389573 (1945-11-01), Balduf
patent: 2916111 (1959-12-01), Pleitgen et al.
patent: 2986246 (1961-05-01), Lester
patent: 3101272 (1963-08-01), Setzer
patent: 3294608 (1966-12-01), Peterson
patent: 3300839 (1967-01-01), Lichti

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