Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Curvilinear or peaked truss
Patent
1993-07-08
1994-11-15
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Curvilinear or peaked truss
52645, 135122, E04B 132
Patent
active
053636260
ABSTRACT:
This invention provides an arcuate frame rib for the frame of a covered shelter. The arcuate rib includes an adjustable and pivotal base mounting at each end of the arc. The rib is formed by sections of tubing joined by a rigid coupler having an angled upper member with tube receivers at both ends to slideably receive the tubular sections, a lower member with tube guides at both ends to slideably receive and guide the tubular sections received in the tube receivers and a central body member joining the upper and lower members. The lower member generally includes a reinforcement that carries a double assembly pin receiving tab. Rib braces generally connect the lower members of successive rigid couplers to support the rib by being pinned to the double pin receiving tabs. For further reinforcement, there are generally knee braces formed of knee tubing strengthened by a gussett plate and clamped to the rib braces.
REFERENCES:
patent: 4373305 (1983-02-01), Russell
patent: 4782641 (1988-11-01), Manenti et al.
patent: 4945936 (1990-08-01), Surrendi
Friedman Carl D.
Smith Creighton
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