Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1992-07-28
1994-03-08
Friedman, Carl D.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52668, 52180, E04C 242
Patent
active
052917142
ABSTRACT:
A grating assembly comprising end rails, substantially J-shaped, with a bottom, outside wall and substantially parallel inside wall, about one-half the height of the outside wall. The inside wall is formed with slots to hold intermediate spacer bars that support tread rails which are in a spaced relation to one another.
REFERENCES:
patent: 1591328 (1926-07-01), Lachman
patent: 4221038 (1980-09-01), Singer et al.
patent: 4282695 (1981-08-01), Lew
patent: 5003724 (1991-04-01), Vestuti
Gillis George
Wright Bruce H.
Architectural Gratings & Grillwork, Inc.
Friedman Carl D.
Kent Christopher T.
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