Ceiling tile plenum boundary suspended ceiling construction

Claim 2

In a suspended ceiling construction having a ceiling gridwork, air distribution components integrated into the gridwork, and ceiling tile closing the spaces between the gridwork and the air distribution components, with at least some of said tiles forming a boundary for an air plenum above said gridwork, the improvement comprising the provision of sealing membrane means overlaying all of said tiles for sealing the boundary of the plenum formed by said tiles against the leakage of air therethrough.

Claim 3

The improvement as in claim 1 wherein the sealing membrane means comprises a sheet of flexible, imperforate material draped upon the upper side of the tiles within the plenum.

Claim 4

In a suspended ceiling construction having a ceiling gridwork, air distribution components integrated into the gridwork, wherein the air distribution components include air control means mounted to and between the gridwork and include an inverted channel member mounted to and between the gridwork over the air control means, and ceiling tile closing the spaces between the gridwork and the air distribution components with the tile closing the space between the channel member and the air control means with at least some of said tiles forming a boundary for an air plenum above said gridwork, the improvement comprising the provision of: sealing membrane means overlaying at least some of said tiles for sealing the boundary of the plenum formed by said tiles against the leakage of air therethrough, said sealing membrane means comprising a sheet of flexible, imperforate material draped upon the upper side of the tiles within the plenum; and means for sealingly holding the peripheral outer edge portion of said sheet of material against the channel member.

Claim 5

In a suspended ceiling construction having a ceiling gridwork, air distribution components integrated into the gridwork, wherein the air distribution components include air control means mounted to and between the gridwork and include an inverted channel member mounted to and between the gridwork over the air control means, and ceiling tile closing the spaces between the gridwork and the air distribution components with the tile closing the space between the channel member and the air control means with at least some of said tiles forming a boundary for an air plenum above said gridwork, the improvement comprising the provision of: sealing membrane means overlaying at least some of said tiles for sealing the boundary of the plenum formed by said tiles against the leakage of air therethrough, said sealing membrane means comprising a sheet of flexible, imperforate material draped upon the upper side of the tiles within the plenum; and means for sealingly holding the peripheral outer edge portion of said sheet of material against the channel member.

Claim 6

The improvement as in claim 3 wherein the inverted channel member includes as inverted channel section, and feet means for mounting the channel section to the gridwork, and wherein the holding means includes the provision of a wall on the feet means and against the channel section, said sheet having its peripheral outer edge received between the channel section and the wall of the feet means to sealingly engage the channel section.

Claim 7

An improved air troffer for use with a suspended ceiling gridwork of main and cross runners having air control means mounted to and between a first pair of runners, and extending parallel to but spaced from an adjacent second pair of runners, and having ceiling tile extending between and supported by the runners and the air control means, said air troffer comprising an inverted channel section, feet means for mounting the inverted channel section to the adjacent pair of runners over the air control means, and sealing membrane means sealingly attached to the section for draping across the tile and against the air control means to sealingly close the opening of the chanNel section around the air control means.

Claim 8

An improved air troffer for use with a suspended ceiling gridwork of main and cross runners having air control means mounted to and between a first pair of runners, and extending parallel to but spaced from an adjacent second pair of runners, and having ceiling tile extending between and supported by the runners and the air control means, said air troffer comprising an inverted channel section, feet means for mounting the inverted channel section to the adjacent pair of runners over the air control means, and sealing membrane means sealingly attached to the section for draping across the tile and against the air control means to sealingly close the opening of the chanNel section around the air control means.

Claim 9

The invention as in claim 5 wherein the sealing membrane means includes a sheet of flexible imperforate material suitably sized to drape across the ceiling tile and against the air control means, and means for sealingly attaching the sheet to the inverted channel section.

Claim 10

The invention as in claim 6 wherein the means for sealingly attaching the sheet includes the provision of walls on the feet means for receiving thereagainst the section and the outer edge portion of the sheet, said walls pressing the outer edge portion of the sheet into sealing engagement with the section.