IP Library Granted Patent US 7,779,593
Granted Patent B2
US 7,779,593 · App. 12/047,371 · Granted Aug 24, 2010

Wall angle with pre-punched locating tabs

Assignee: Chicago Metallic Corporation
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Quick Facts
Patent No.
US 7,779,593
App. No.
12/047,371
Granted
Aug 24, 2010
Kind
B2
Abstract

A wall angle for a suspended ceiling, which may either be a drywall suspended ceiling or a lay-in tile suspended ceiling, has a cross-section forming a substantially right angle of the vertical leg and a horizontal leg. The horizontal leg is adapted to support an inverted tee-runner that has a vertical web and opposed flanges, the opposed flanges being adapted to rest on the horizontal leg of the wall angle. The horizontal leg is formed with a plurality of pairs of locating tabs, at least one tab in each pair being upwardly extending and vertically-oriented. The tabs in each pair are spaced apart a distance sufficient to accommodate the width of the opposed flanges of the tee-runner. At least one of the tabs in each pair has a downwardly extending detent adapted to permit installation of a tee-runner, but to inhibit removal of the tee-runner. The pairs of tabs are spaced, on center, a pre-determined distance that depends upon the intended application of the wall angle.

Claims (6)

1. A wall angle for a suspended ceiling having a cross section forming a substantially right angle with a vertical leg and a horizontal leg, the horizontal leg being adapted to support an inverted tee-runner having a vertical web and opposed flanges that rest on the horizontal leg, the horizontal leg being formed with a plurality of pairs of tabs, at least one tab of each pair being upwardly extending and vertically-oriented, the tabs in each pair being spaced apart a distance sufficient to accommodate the width of the opposed flanges of the tee-runner; at least one of the tabs in each pair having a downwardly extending detent adapted to permit installation of a tee-runner, but to inhibit removal of the tee-runner, the vertical leg further comprising a tab that is bendable so as to overlie the horizontal leg and having a slot therein for receiving a screw for attachment to the vertical web of a tee-runner so as to allow limited movement of the tee-runner toward and/or away from the vertical leg of the wall angle.

2. The wall angle of claim 1 wherein the tab extends downwardly toward the horizontal leg when bent outwardly from the vertical leg.

3. The wall angle of claim 1 wherein the horizontal leg includes a plurality of pairs of vertical tabs, the vertical tabs in each pair being spaced a distance approximately equal to the flanges of the tee-runner.

4. A wall angle for a grid for a suspended ceiling having a cross section forming a substantially right angle with a vertical leg and a horizontal leg, the vertical leg including a tab lanced therefrom that is bendable so as to overlie the horizontal leg and adapted to be secured to the vertical web of a tee-runner, wherein the tab has a slot therein for receiving a screw for attachment to the vertical web of a tee-runner so as to allow limited movement of the tee-runner toward and/or away from the vertical leg of the wall angle.

5. The wall angle of claim 4 wherein the tab extends downwardly toward the horizontal leg when bent outwardly from the vertical leg.

6. The wall angle of claim 4 wherein the horizontal leg includes a plurality of pairs of vertical tabs, the vertical tabs in each pair being spaced a distance approximately equal to the flanges of the tee-runner.

Assignments (4)
CHANGE OF NAME Recorded Jun 27, 2023
From: ROCKWOOL INTERNATIONAL A/S
To: ROCKWOOL A/S
Reel/Frame 064087/0340 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 21, 2015
From: CHICAGO METALLIC COMPANY LLC
To: ROCKWOOL INTERNATIONAL A/S
Reel/Frame 034769/0054 →
MERGER Recorded Jan 9, 2014
From: CHICAGO METALLIC CORPORATION
To: CHICAGO METALLIC COMPANY LLC
Reel/Frame 031926/0624 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 28, 2008
From: JAHN, PETER G., MR.; JANKOVEC, SCOTT G., MR.
To: CHICAGO METALLIC CORPORATION
Reel/Frame 020867/0294 →
Continuity (2)
Provisional Application 6089601300 · Mar 21, 2007
Related Publication 20080229680A1 · Sep 25, 2008