Method of forming joints of non-cylindrical tubing

Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or...

Reexamination Certificate

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C052S653200, C052S656100

Reexamination Certificate

active

08074420

ABSTRACT:
Structures built from square metal tubing and methods for their construction, wherein curved sections of square tubing are welded to substantially straight sections of metal tubing according to the design requirements of the structures. The curved components are stronger and lighter than equivalent components made by bending. In addition, the curved components can be manufactured in a much wider range of configurations, sizes and dimensions than equivalent components made by bending.

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