Insulated beam

Static structures (e.g. – buildings) – Machine or implement

Patent

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Details

527312, 527374, E04C 330

Patent

active

056783817

ABSTRACT:
An insulative beam and method for its construction. The insulative beam includes two support channels formed from a sheet metal and a block of a plastic material shaped so that each of the two channels wraps at least partly around the block of plastic material. In some embodiments of the invention, the channels extend longitudinally beyond the block of plastic material. If desired to give additional strength to the ends of the insulative beam, the ends are reinforced with angles or channels that fit at the end of the block of plastic material and the angles or channels are welded to the support channels. In other embodiments, the reinforcement is supplied by vertical ribs formed in the web of the support channels. The location of the vertical ribs can be at the ends of the beam or at other areas that are otherwise weakened. Additional reinforcement can be provided by vertical supports within each of the channels. In a further preferred embodiment, the channels are further reinforced by rectangular tubes that run longitudinally along the corners of the channels. In a still further preferred embodiment, the support beam includes two angles with a rectangular tube placed at the corner of the angle and another rectangular tube attached at the upper end of the angle. To further strength the beam, copies of the beam can be placed together and welded so that they act together.

REFERENCES:
patent: 2790524 (1957-04-01), Herrschaft
patent: 3327441 (1967-06-01), Kelly
patent: 3531901 (1970-10-01), Will, Jr. et al.
patent: 3810337 (1974-05-01), Pollard
patent: 4580380 (1986-04-01), Ballard

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