Static structures (e.g. – buildings) – Sheetlike element assembled parallel to existing wall,... – Element spaced from wall – ceiling – or floor and held by...
Patent
1993-07-23
1995-07-04
Friedman, Carl D.
Static structures (e.g., buildings)
Sheetlike element assembled parallel to existing wall,...
Element spaced from wall, ceiling, or floor and held by...
524831, 524891, 52 98, 52668, E04B 926
Patent
active
054289300
ABSTRACT:
A concealed suspension ceiling system advantageously uses a `T` bar grid network used for lay-in ceiling panels. Butterfly clips are secured to upper beads of the `T` bar grid network allowing torsioning springs to releasably maintain the panels suspended beneath the grid. The system can be used for entirely new installations or used in a retrofit application.
REFERENCES:
patent: 3102306 (1963-09-01), Hutchinson
patent: 3930338 (1976-01-01), Rood
patent: 4408428 (1983-10-01), Brooke et al.
patent: 4438613 (1984-03-01), Hintsa et al.
patent: 4545166 (1985-10-01), Kielmeyer
patent: 4580387 (1986-04-01), Rogers
Bagley Claude E.
Balog John
Kolga Heikki
Marini Conrad
Peddle Gary H.
Canfield Robert J.
Decoustics Limited
Friedman Carl D.
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