Abstract: An integral main tee connector arranged to couple with an identical connector stamped from metal strip material aligned strip-wise with material making a web of the main tee the connector when connected to another identical connector exhibiting at least five locking zones distributed over an expanse of each connector.

Abstract: The invention provides a bracket design for connecting cross and main tees of a suspended ceiling in non-rectangular joints to provide a wide variety of ceiling patterns including rhombic and triangular shapes.

Abstract: Provided is a ceiling tile coated on at least one surface with an acoustically transparent coating which creates pores at the tile surface and comprises a high Tg polymeric binder, titanium dioxide, and particles selected from the group consisting of void latex particles, hollow glass beads, calcium carbonate, calcium magnesium carbonate, calcined clay and any combination thereof. Compositions for acoustically transparent coatings and methods for making a substrate surface acoustically transparent are provided as well.

Abstract: The invention provides coating processes for producing finished fibrous panels comprising applying a prime coat onto at least one side of the fibrous panel by curtain coating; and applying a finish coat over the prime coat by spray coating.

Abstract: The disclosure provides a coating composition for improving the sag resistance of a fibrous panel, the composition including 10 to 100 wt. % inorganic binder, based on the total weight of the dry coating, wherein the inorganic binder includes a borate salt and at least one of an alkali metal silicate or an alkaline earth metal silicate, and the inorganic binder is water soluble. Further provided are fibrous panels having a backing side and an opposing facing side including the coating of the disclosure, and methods of preparing same.

Abstract: A modular dynamic acoustic system for use in connection with an indoor environment includes a movable panel array, a support structure, and a plurality of suspension members. The movable panel array includes a plurality of panel members, each of which including a body defining at least one edge, at least one hinge positioned along the at least one edge, and at least one mounting structure. The panel members are operably coupled with at least one adjacent panel member via the at least one hinge. Each of the plurality of suspension members is operably coupled with the support structure and the at least one mounting structure of one of the plurality of panel members to secure the movable panel array to the support structure. Each of the suspension members is movable to modify a configuration of the movable panel array.

Abstract: A dynamic acoustic system for use in connection with an indoor environment includes a plurality of elongated acoustic bars and a controller operably to each of the elongated acoustic bars. Each of the bars is operably coupled to a ceiling member of the indoor environment and includes an upper portion, a lower portion, a plurality of side surfaces extending between the upper and lower portions, an interior region at least partially defined by the upper portion, the lower portion, and the plurality of side surfaces, and at least one movable element movable between first and second positions. The controller selectively controls operation of the at least one movable element of a desired number of the plurality of elongated acoustic bars to alter an environmental characteristic of the indoor environment.

Abstract: An elongate sheet metal body for attachment to the web of a grid tee, the body having a substantially right angle cross-section formed by legs that in use are vertical and horizontal, respectively, the vertical leg having a width adapted to fit against the web between a reinforcing bulb and lower flange of the tee, the horizontal leg having a width at least that of the width of a portion of the flange portion extending from the web to a free edge of the flange, the horizontal leg having at a free edge a plurality of depending lugs spaced uniformly from one another with a common center to center distance, the lugs having a horizontal width sized to fit into U-shaped baffles such that said baffles carried on said lugs have the same center to center distance as the lugs.

Abstract: A method of preparing a fibrous panel including surface treating a mineral wool with a water repellent agent to provide a water-repellent surface treated mineral wool, admixing the water-repellent surface-treated mineral wool with water to provide a slurry, and dewatering and drying the slurry to provide a fibrous panel. A method of preparing a mineral wool having a surface treated with a water repellent agent including contacting a water repellent agent emulsion with a mineral wool and drying the mineral wool, and a method of preparing a water-repellent surface-treated fibrous panel including mineral wool having a surface pre-treated with a water repellent agent are also provided.

Abstract: The disclosure provides basemats for fibrous panels, including a mineral wool present in an amount of at least about 60 wt %, based on the total weight of the basemat, a mineral filler, a cellulose present in an amount of about 1 wt % to about 3 wt %, based on the total weight of the basemat, and a binder. The basemat has a backing side and a facing side. Also provided are fibrous panels including the basemat of the disclosure and a porous veil.

Abstract: The disclosure provides a ceiling tile including a curable coating composition including 10-50 vol. % inorganic binder, based on the total volume of solids in the dry coating composition, wherein the inorganic binder is an alkali metal silicate or an alkaline earth metal silicate and 50-90 vol. % inorganic filler, based on the total volume of solids in the coating composition, wherein the binder and the filler are not the same and the coating is substantially free of an organic polymeric binder. The ceiling tiles have a backing side and an opposing facing side, and a cured coating layer disposed on the backing side of the panel, the backing side being directed to a plenum above the fibrous panel in a suspended ceiling tile, the cured coating layer including the curable coating composition of the disclosure.

Abstract: The invention provides coating processes for producing finished fibrous panels comprising applying a prime coat onto at least one side of the fibrous panel by curtain coating; and applying a finish coat over the prime coat by spray coating.

Abstract: A main tee for a suspended ceiling formed of metal sheet and having an upper reinforcing bulb, a lower flange and a web between the bulb and flange, the web having evenly spaced, generally vertical cross tee receiving slots along a length of the tee and a series of suspension wire receiving holes along the length of the tee, the lowermost edges of the holes being above a highest extremity of the cross tee slots.

Abstract: A circular multi-panel acoustic baffle assembly for suspending above an occupied space, the assembly including a plurality of baffle panel units each radiating away from a common center and generally lying in a vertical plane, upper edges of the baffle panel units lying in a common imaginary surface of revolution about the center, the baffle panel units being joined by common inner and outer arcuate ribs concentric with the center, radially inner ends and radially outer ends of the baffle panel units lying on imaginary circles concentric with the center.

Abstract: An improved connector for a main tee of a suspended ceiling grid that has multiple locking elements that increase connection tensile force properties. The connector has an end tab with a forward portion bent at a lead angle and a receiving pocket with an outwardly flared entrance that, with an opposed identical connector, cooperate to provide smooth horizontal alignment. The end portion, additionally, includes an edge profile that vertically aligns itself with the receiving pocket of the opposed connector. The receiving pocket includes a spring-like resilient wall that limits the assembly force to overcome interference with projecting lock elements. The spring-like pocket wall and shape of the lock elements contribute to an audible click signaling that a connection has been completed. One of the lock elements works with a relief groove to augment self-alignment of the connectors.

Abstract: A connector for a main tee of a suspended ceiling grid that has improved tensile strength achieved by accurately proportioning an end tab and receiving depression so that full lateral abutment between these elements is obtained to assure full engagement between lock lance edges and mating stop edges.

Abstract: A perimeter pocket system with an inner wall having a brace connecting protuberance and an extended ceiling supporting ledge with grid tee end reference marks or coupling structure for an extension. Grid tee connector clips have cam slots for raising grid tees in a seismic event and features imparting rigidity and vibration resistance.

Abstract: A composite structure for improving the acoustical properties of a low NRC membrane including a sound absorbing layer and a porous, scrim covered, perforated drywall layer.

Abstract: An elongated lighting assembly useful in suspended baffle ceilings comprising an inverted channel having an upper web and opposed legs depending from opposite sides of the web, inturned flanges extending inwardly from lower ends of the legs, distal edges of the flanges being horizontally spaced from each other to form a gap, LED tape located over an upper surface of the flanges and carrying upwardly facing LED elements at regularly spaced intervals, surfaces inside the channel facing the LED tape being coated with a white diffuse reflecting material whereby light emitted by the LED elements emanates essentially exclusively out of the gap by diffuse reflection from the coating.