Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1979-09-04
1982-03-02
Murtagh, John E.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52726, F16B 722
Patent
active
043173187
ABSTRACT:
A one piece T section used interchangeably as both a main T member and a cross T member in a supporting grid system for suspended ceilings. The interchangeable T sections have locking connectors engageable to interlock a pair of sections in end to end relation to form a main T splice with their tile supporting flanges substantially abutting. When the sections are used as cross T members, the locking connectors engage the web of a section used as a main T member and the flanges of the cross T sections overlie the flanges of the main T section with which they are interlocked.
REFERENCES:
patent: 3221466 (1965-12-01), Downing
patent: 3922829 (1975-12-01), Sauer
patent: 4161856 (1979-07-01), Brown
Murtagh John E.
Roblin Industries, Inc.
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