US4068444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling runner with closure strip
Assignee: Armstrong World Industries Inc
•
Filing: 1977-05-02
•
Granted: 1978-01-17
•
Expires: 1997-05-02
Abstract
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 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.
Inventors
- 👤 James C. Ollinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:01
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/067; E04B9/068; E04B2009/062
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
In combination: a ceiling runner having an elongated sheet metal body with a generally inverted U-shaped configuration, said runner having two side walls connected together at their one ends with a flat top member, the opposite sides of the side walls having horizontal flanges which extend outwardly from the body of the runner to support ceiling boards on either side of the runner, said side walls having a groove means in the side walls closely positioned to the horizontal flanges forming a projection extending outwardly from the side walls of the runner adjacent said horizontal flanges; and, a closure strip means having a flat elongated body portion and flanges on the sides of the body portion, said flanges being in the form of two offset leg means positioned on one side of the plane containing the body portion, said closure strip means being sized to have its flanges positioned in said groove means and, at the same time, partly conform in shape to the flat top member and part of the side walls of the runner.
Claim 2
Dependent Claim
176 words
In combination: a ceiling runner having an elongated sheet metal body with a generally inverted U-shaped configuration, said runner having two side walls connected together at their one ends with a flat top member, the opposite sides of the side walls having horizontal flanges which extend outwardly from the body of the runner to support ceiling boards on either side of the runner, said side walls having a groove means in the side walls closely positioned to the horizontal flanges forming a projection extending outwardly from the side walls of the runner adjacent said horizontal flanges; and, a closure strip means having a flat elongated body portion and flanges on the sides of the body portion, said flanges being in the form of two offset leg means positioned on one side of the plane containing the body portion, said closure strip means being sized to have its flanges positioned in said groove means and, at the same time, partly conform in shape to the flat top member and part of the side walls of the runner.
Claim 3
Dependent Claim
76 words
The combination of claim 1 wherein said body portion width is equal to the width of the top member which is also equal to the width between said side walls ends adjacent said horizontal flanges, and said offset leg means are a first leg connected to said body portion, said first leg extends outwardly from the body portion at an obtuse angle, and a second leg extending from said first leg at a right angle thereto.
Claim 4
Dependent Claim
32 words
The combination of claim 2 wherein said closure strip means has its flanges positioned in said groove means and said body portion thereof is in the same plane as said horizontal flanges.
Claim 5
Dependent Claim
43 words
The combination of claim 2 wherein said closure strip means has its flanges positioned in said groove means and said body portion thereof is not in the same plane as said horizontal flanges, but is positioned within the U-shaped configuration of said runner.
Claim 6
Dependent Claim
43 words
The combination of claim 2 wherein said flat top member has openings therein and closure strip means is positioned against said flat top member so that the body portion of said closure strip means closes over the openings in said flat top member.
Claim 7
Dependent Claim
48 words
The combination of claim 2 wherein said side walls have a second groove means at the mid-region thereof and said closure strip means has its flanges positioned in said second groove means so that said closure strip means is positioned well within the U-shaped configuration of said runner.
References Cited (Backward Citations)
CA736145A
Cited
US1074895A
Cited
FR65636E
Cited
GB751538A
Cited
US3067323A
Cited
US3016997A
Cited
CH403258A
Cited
US3599386A
Cited
US3633952A
Cited
US3835614A
Cited
US3798865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |