E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
E04C 2/38 (2006.01) E04B 1/90 (2006.01) E04B 9/00 (2006.01) E04B 9/04 (2006.01) E04B 9/06 (2006.01) E04B 9/22 (2006.01) E04B 9/28 (2006.01)
Patent
CA 2415487
Panels (50) for a suspended ceiling of the torsional spring type are disclosed. Such panels can include: a circumferential edge configuration that preserves a very tight tolerance between a surface bearing against a foot portion (44) of a T-bar (42) and a face (64) of the panel; and/or reinforcing ribs in the form of T-bars whose foot portions are inserted between the laminae of a typical ceiling panel. Each circumferential side edge configuration is multifaceted and includes: a first surface (56) intersecting the back surface; a second surface (58) intersecting the first surface and substantially parallel to the face surface; a third surface (60) intersecting the second surface and substantially orthogonal to the face surface; and a fourth surface (62) intersecting, and being beveled relative to, the third surface. The length of the first surface will vary in close proportion to the variations in the thickness of a new panel, which makes the machined back- to-face distance very uniform.
Kliegle Dennis R.
Quiggle Doyle R.
Owens Corning
Smart & Biggar
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