Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Outside corner or peripherally bordered
Patent
1983-12-12
1986-02-18
Murtagh, John E.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Outside corner or peripherally bordered
52475, 403402, E04C 238
Patent
active
045704066
ABSTRACT:
A hollow, thin wall, generally rectangular shaped corner connector key forms the frame corner and connects together the adjacent ends of tubular screen frame members. The legs of the L-shaped key form a hollow box-like corner portion, against which the frame ends are abutted. Integral leg extensions telescopically fit into and are frictionally locked against the interior wall surfaces of the frame members. The hollow, tubular cross-section shape of the key, whose box-like corner portion corresponds to the cross-sectional shape of the exterior of the frame members, and whose leg extensions correspond to the interior cross-section of the frame members, coupled with the frame member abutments and the frictional locking, substantially rigidifies the frame corner and resists out-of-plane twisting or bending of the frame.
REFERENCES:
patent: 2703159 (1955-03-01), Van Fleet
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patent: 3374597 (1968-03-01), Whitener
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patent: 4136496 (1979-01-01), Molyneux
patent: 4358213 (1982-11-01), Hawkins et al.
patent: 4368584 (1983-01-01), Logan
Acorn Building Components, Inc.
Murtagh John E.
Rudy Andrew Joseph
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