Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Components adjustably or collapsibly connected
Patent
1997-02-03
1998-10-20
Canfield, Robert
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Components adjustably or collapsibly connected
52645, 52690, E04H 1218
Patent
active
058229450
ABSTRACT:
A foldable truss comprising three truss cords and webbing connecting two of the three truss cords. The one central truss cord includes hinge segments which allow the truss to occupy a closed position, in which the truss is folded for transport, and an open position, in which the truss is expanded into a stable triangular configuration for supporting objects and/or providing a frame. The present invention may further include various configurations of a bracket for securing the truss in the rigid and stable open position.
REFERENCES:
patent: 1545148 (1925-07-01), Lindau
patent: 3474579 (1969-10-01), Kieser
patent: 4620405 (1986-11-01), Melland
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