Lee W. Addie - Lancaster PA James C. Ollinger - Lancaster PA
Assignee:
Armstrong World Industries, Inc. - Lancaster PA
International Classification:
E04B 552 E06B 354
US Classification:
52480
Abstract:
The ceiling tile suspension system is composed of a runner structure and a clip structure. The runner structure is generally trapezoidal in cross section with two flanges spaced away from a ceiling structure. The clip structure includes a flat base portion with flanges that grasp the flanges of the runner. The clip structure has a serrated edge connected to the flat base portion and the serrated edge either digs into the edge of the ceiling tile or slips into a kerf in the edge of the ceiling tile to hold the ceiling tile in position against the clip flat base portion.
James C. Ollinger - Lancaster PA Melvin H. Shaub - Lancaster PA
Assignee:
Armstrong World Industries, Inc. - Lancaster PA
International Classification:
B23P 1700
US Classification:
29155R
Abstract:
A method is provided for adding strength to a T-bar grid fabricated with a double web and capped system. The addition of strength is achieved by coating the inside portions of the T-bar with a hot melt adhesive. Cooling sets the adhesive and results in the parts of the grid member becoming a unitized structure.
The invention is directed to a ceiling runner which has a generally U-shaped configuration. The runner has flanges to support ceiling boards. The side walls of the runner are formed with first grooves which may be used to support the runner in position or define an isolation chamber within the body of the runner. The side walls of the runner have second grooves which are used for positioning ceiling boards on the flanges. A closure member is used in combination with this ceiling runner to close off either the bottom of the runner or the top of the runner.
James C. Ollinger - Lancaster PA Daniel C. Ziegler - Millersville PA
Assignee:
Armstrong World Industries, Inc. - Lancaster PA
International Classification:
E04C 332
US Classification:
52735
Abstract:
An end detail for a ceiling runner is provided incorporating a tongue extending from the end of the ceiling runner with a tab formed as part of the tongue. Due to the construction of the ceiling runner, the tab is formed from two side-by-side pieces of metal which tend to separate. A means is provided near the base of the tab on the tongue for displacing a portion of the metal of the tongue laterally within the plane of the tongue to lock together the two pieces of metal forming the tongue.
James C. Ollinger - Lancaster PA James S. Peraro - Columbus OH
Assignee:
Armstrong Cork Company - Lancaster PA
International Classification:
E04C 242 F16B 722
US Classification:
52664
Abstract:
The invention is directed to a ceiling runner which has a generally U-shaped configuration. The runner has flanges to support ceiling boards. The side walls of the runner are formed with grooves which may be used to support the runner in position or define an isolated chamber within the body of the runner. The side walls of the runner have a second groove which is used for positioning ceiling boards on the flanges. Locking means are provided on the end and side of two adjacent ceiling runners to lock the ceiling runners together.
James C. Ollinger - Lancaster PA Daniel C. Ziegler - Millersville PA
Assignee:
Armstrong World Industries, Inc. - Lancaster PA
International Classification:
E04C 242 E04B 550
US Classification:
52232
Abstract:
The expansion joint for the runner is formed with two cut-out areas and cuts in the vertical web to permit the horizontal web, enlarged bulb and remaining web by the cut-out areas to bend outward to absorb expansion of the runner when subjected to fire.
The invention is primarily directed towards a splice for fastening together metal furring strips which are mounted to a ceiling. Ceiling tiles are placed adjacent the metal furring strips and staples are driven through the ceiling tiles into the metal furring strips to mount the ceiling tiles in position.
The invention is directed to a ceiling runner which has a generally U-shaped configuration. The runner has flanges to support ceiling boards. The side walls of the runner are formed with grooves which may be used to support the runner in position or define an isolated chamber within the body of the runner.