Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1986-07-18
1988-03-01
Pate, III, William F.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
52484, 52486, E04C 242
Patent
active
047277033
ABSTRACT:
In a suspended ceiling grid structure adapted to support ceiling tiles or the like, connecting apparatus between ceiling grid inverted T main and cross members disposed at right angles to each other and having upright central fins and bottom horizontal flanges comprise a vertically disposed belt loop formed in the central fin of the main member, a locking tongue extending from each end of the cross members in opposite directions at substantially right angles from the central fin of the cross member, a stiffening bead formed in the central fin of the cross member at each end of the cross member and extending through the locking tongues to an outer end portion of the locking tongues, a locking bump formed in the stiffening bead in the outer end portion of the locking tongues, positive stop shoulders at the top and bottom of the locking tongue contacting the rear edge of the belt loop on the main member when the locking tongue is fully inserted into the belt loop, and a sloping surface on the rear of the locking bump which the loop presses against to urge stop shoulders against the rear edge of the belt loop.
REFERENCES:
patent: 2041773 (1936-05-01), Manske
patent: 2896752 (1959-07-01), Wilde
patent: 2990921 (1961-07-01), Wilde
patent: 3169614 (1965-02-01), McCoy
patent: 3270479 (1966-09-01), Weinar
patent: 3374596 (1968-03-01), O'Brien et al.
patent: 3378976 (1968-04-01), Meredith, Jr.
patent: 3722933 (1973-03-01), Nute, Jr.
patent: 3979874 (1976-09-01), Cubbler, Jr. et al.
patent: 4011707 (1977-03-01), Nute, Jr.
A. Earley John F.
A. Earley III John F.
National Rolling Mills Inc.
Pate III William F.
Smith Creighton
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