Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Three-dimensional space-defining
Patent
1998-02-17
2000-07-25
Stephan, Beth A.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Three-dimensional space-defining
526565, E04H 1200
Patent
active
060923482
ABSTRACT:
Aluminum framing components comprise both a hollow aluminum extrusion and an open back aluminum extrusion which may be used separately or as a system. The hollow aluminum extrusion has a total of three screw bosses, two of which oppose each other on the side walls above the center of gravity of the extrusion. The third screw boss is located in close proximity to the bottom center of the extrusion below the center of gravity of the extrusion. The walls of the three screw bosses are thicker than the nominal wall thickness of the extrusion, and the extrusion walls directly behind the screw bosses are thicker than the walls of the screw bosses. The open back aluminum extrusion has a face with flat, uninterrupted inner and outer surfaces to facilitate placing of the ends of other framing components including the hollow aluminum extrusion of the present invention against the outer surface of the face and the flush mounting of fasteners against the inner surface of the face with the fasteners running through the face into screw bosses in the other framing components.
REFERENCES:
patent: 5644881 (1997-07-01), Neilly
patent: 5657591 (1997-08-01), Kitada
Brownlee Terry L.
Dombchik Barry N.
Florida Extruders International, Inc.
Stephan Beth A.
LandOfFree
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