Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1985-06-14
1986-07-22
Bell, J. Karl
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52232, 52DIG5, E04B 552
Patent
active
046011536
ABSTRACT:
A suspended ceiling system having a main runners or members extending parallel with cross-members spaced therealong to form rectangular sections, the cross-members being provided with tongues extending from the end and received in apertures or slots in the main member with the tongues being provided with a catch surface coacting with a shoulder on the tongue to hold the tongue as it is inserted into the aperture of the main runner. Each of the tongues are provided in coacting engagement and abutment surfaces which lock the two tongues together in an end-to-end connection when inserted from opposite sides of the main runner.
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patent: 4106878 (1978-08-01), Jones
patent: 4317641 (1982-03-01), Sauer
patent: 4525973 (1985-07-01), Vukmanic et al.
Borucki John S.
Dunn James J.
Bell J. Karl
Chicago Metallic Corporation
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