Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Outside corner or peripherally bordered
Patent
1998-09-04
2000-04-11
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Outside corner or peripherally bordered
526562, 526561, 526569, 523099, E04C 238
Patent
active
060475145
ABSTRACT:
The present invention provides for a process for constructing structural members and the resultant product, particularly, but not exclusively, a frame and sash section for a window, door panel, or other building or architectural construction. The process is comprised of continuously roll-forming structural shapes from pre-treated metal in flat coil-stock form. A thin layer of Extrudable Thermal plastic (ETP) is then selectively extruded to both the outside and inside surfaces of the roll-formed shape. Some of the ETP is extruded onto the roll-formed shape in a functional shape, such as a "C" shaped pocket used to clip parts together. Once the roll-formed shapes are selectively joined or coupled together to form a frame or sash, a shot of urethane foam is injected into the frame or sash and allowed to expand to fill the interior of the frame or sash. The addition of the foam provides permanent adhesion among the various structural members and significantly improves the structural integrity of the window casement. Hollow corner keys can be further added to improve the structural integrity of the window casement.
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A Phi Dieu Tran
Friedman Carl D.
Quanex Corporation
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