Static structures (e.g. – buildings) – Facer held by stiffener-type frame – Facer back abuts and conceals frame
Patent
1979-07-16
1981-03-24
Murtagh, John E.
Static structures (e.g., buildings)
Facer held by stiffener-type frame
Facer back abuts and conceals frame
403191, E04B 552, E04B 140
Patent
active
042572053
ABSTRACT:
An attachment system for suspended drywall ceiling panels is disclosed. The attachment system comprises a panel support grid having a series of main-runners and cross-runners disposed with lower panel attachment surfaces in generally co-planar relationship and said grid having intersection points at main-runner and cross-runner crossings. The attachment system has attachment clips positioned at said intersection points interconnecting cross-runners and main-runners. The attachment clips being integrally constructed from light-gauge steel and having a box-like configuration with two opposing vertical walls and opposing upper and lower horizontal walls wherein the upper wall centrally separates into halves. The upper wall halves include upwardly extending tabs with tab connecting means releasably connectiing both halves. The opposing vertical walls of the attachment clip each having an oppositely extending cross-runner attachment flange. Said clips engaged in a sleeve-like manner to said main-runners by means of the box-like configuration separating at said upper wall to extend around outer portions of main-runners. A spacer key is struck out from the lower wall of the attachment clip and extends downwardly in a plane generally parallel with the longitudinal axis of the main-runner. The attachment system further comprises ceiling panels comprised of gypsum and being mechanically fastened to said lower panel attachment surfaces wherein adjacent panels meet at butt joints along cross-runners and spaced-apart open joints along main-runners being spaced apart by said spacer keys of the attachment clips.
REFERENCES:
patent: 3037594 (1962-06-01), Kaufman
patent: 3612461 (1971-10-01), Brown
patent: 3677589 (1972-07-01), Roles
patent: 3785110 (1974-01-01), Galloway
Kurlandsky Samuel
Murtagh John E.
Ohlson Glenn W.
Robinson Robert H.
United States Gypsum Company
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