USG INTERIORS, INC. Patent applications |
Patent application number | Title | Published |
20130330536 | METHOD OF REDUCING CEILING TILE SAG AND PRODUCT THEREOF - Sag in ceiling tiles is reduced by the present coated ceiling tile and method which decreases sag in the coated ceiling tiles. Calcined gypsum and water are combined to form a coating which is applied to the back side of a base ceiling tile in a thin layer of about 100 micrometer to about 1000 micrometers. The coating optionally includes a set time modifier. This method makes a coated ceiling tile from a base ceiling tile having a front side and a back side opposing the front side. The coating is applied to the back side of the base ceiling tile, the coating comprising an interlocking matrix of calcium sulfate dihydrate. Optionally, remnants of the set time modifier are present within interstices in the gypsum matrix. The remnants of the set time molecule include ions, molecules, particles or combinations thereof. | 12-12-2013 |
20120304574 | OPEN WEB GRID RUNNER - A suspended ceiling grid runner comprising separate parallel upper and lower chords, a plurality of identical web plates fixed between the chords and the plates having a height less than the height of the grid runner and a width, the chords being made of roll-formed sheet metal strips and symmetrical about a vertical plane, the chordal strips each having marginal sections folded parallel to one another and on opposite sides of the vertical plane, the web plates including vertical slots for receiving connectors of cross runners, the web plates being spaced at regular centers along the grid runner with a distance that is a small fraction of the nominal length of the grid runner, the gaps between adjacent web plates being longer than the height of the grid runner. | 12-06-2012 |
20120291388 | GRID RUNNER CAP ANCHORING LANCE - An elongated grid runner, and its manufacture, comprising a pair of overlying metal strips roll-formed together into a shape suitable for use in a rectangular grid to support ceiling panels, one of said strips serving as a visible cap for concealing the other strip forming the main body of the grid runner when the grid member is employed in a completed ceiling, the strips being lanced at each end of the grid runner to lock the cap strip on the main body strip whereby when the overlying strips are simultaneously cut to a finish length prior to finish roll-forming, the ends of the strip are maintained in substantially overlying end-to-end registration where the cap is visible in a finished ceiling. | 11-22-2012 |
20120285643 | WATER REPELLENT FIBER BOARDS - An acoustic building material and method for manufacture incorporates a homogenously dispersed reactive silicone to improve water repellency and physical properties. | 11-15-2012 |
20120167514 | CEILING PANEL SYSTEM - A ceiling panel system includes a plurality of grid members that are operable to form a grid suspendable from a ceiling, the grid having grid member intersections; and a plurality of ceiling panels, each ceiling panel including a planar surface and a plurality of upturned edges arranged about the periphery of the planar surface. The upturned edges include a catch operable to attach the panels to the face of the grid intermediately to the intersections to form a ceiling surface. | 07-05-2012 |
20120167513 | MAGNETIC CROSS TEES - An elongated metal grid runner for a suspended ceiling, the grid runner having a cross-section with an upper hollow reinforcing bulb, a vertical web extending below the bulb, and lower flange elements extending laterally from opposite sides of the web, the length of the grid runner being less than about 9′, a permanent magnet disposed on each end of the grid runner at its flange elements, the magnet being adapted to overlie and be attracted to a horizontal leg of a steel wall angle to thereby releasably retain the grid runner in position on the wall angle. | 07-05-2012 |
20120164422 | CEILING TILE BASE MAT - A water felted base mat for a suspended ceiling tile comprising on a weight basis about ½ mineral wool, starch binder, limited to about ⅛, newsprint, limited to about ⅛, and about ¼ expanded glass beads. | 06-28-2012 |
20120137615 | BI-PARTING ACCESSIBLE CEILING SYSTEM - A suspended ceiling comprising a grid formed of intersecting grid runners and snap-up panels supported on the grid runners, the grid runners dividing a ceiling area into standard modules, the pans being formed of sheet material and each having its sides sized to cover the module size while leaving a space at visible faces thereof between adjacent panels when in an installed position on the grid, at least one adjacent pair of panels being displaceable from their installed positions, the gap between a pair of displaceable panels being closed by a removable runner or the displaceable panels so that when the displaceable panels are displaced from their installed position and any removable runner is removed, an access opening of twice the standard module is made available for accessing the area above the ceiling while adjacent panels at longitudinal ends of the gap between the displaceable panels can remain in respective installed positions. | 06-07-2012 |
20120137614 | WALL CONFORMING SUSPENDED CEILING MOLDING - A wall molding for a suspended ceiling comprising a roll-formed sheet metal body having a generally upright component to be fixed to a wall and a projecting component extending generally transversely to the upright component and adapted to underlie and support the edges of ceiling tiles and ends of grid runners, the projecting component in a free state extending across a plane defined by the upright component to a line adapted to abut the wall when the upright component is drawn towards the wall. | 06-07-2012 |
20120076983 | PANELS FOR THE INTERIOR SURFACES OF BUILDINGS - An interior surface panel such as a ceiling tile is free of PVC materials and otherwise possesses desirable properties that make it suitable for installation in a variety of environments including schools, household and commercial kitchens and healthcare facilities. The panel can include a base mat and a facing material of a polyolefin or polyester polymer or copolymer bonded to the base mat. The facing material is resistant to ultraviolet light and possesses superior scrubbability. The PVC-free facing has a preferred thickness, opacity and surface roughness and a texture pattern that is non-directional and discontinuous. In an embodiment in which the PVC-free facing is white, it has a preferred light reflectance. The PVC-free facing is resistant to deformation under tension. In addition, the facing has low anisotropy; that is, the facing exhibits minimal differences in its physical properties in different directions. The facing also has good dimensional stability. | 03-29-2012 |
20120023854 | GRID RUNNER - A roll-formed grid runner comprising a sheet metal strip folded into an upper hollow single wall reinforcing bulb, a double wall web below the bulb, a channel extending laterally from both sides of a lower end of the web to a bend and upwardly from the bend to a panel supporting elevation, the bend on each side of the web existing at a longitudinally extending score line where a thickness of the strip is locally reduced. | 02-02-2012 |
20120017531 | FIELD ADJUSTABLE GRID INTERSECTION CLIP - A clip for a suspended ceiling grid to join a pair of grid runners intersecting a third grid runner from opposite sides of the third grid runner, the clip being bendable sheet metal symmetrical about a vertical plane, having a saddle portion with a seat and generally planar flaps depending from opposite sides of the seat, including a pair of generally planar wings each cantilevered from a respective one of the flaps; the seat width corresponding to a hollow reinforcing bulb of a grid runner, the flaps extend over the sides of the reinforcing bulb and web of the third grid runner, a flap and wing joined at a vertical bend line, weaker than each adjacent area of the flap and wing whereby the wing can be manually bent to a desired angle relative to the flap. | 01-26-2012 |
20110319543 | FORMALDEHYDE FREE COATINGS FOR PANELS - The invention, provides a curable, formaldehyde free coating composition comprising a composition comprising a polyacid copolymer crosslinked with a hydroxyl group-containing compound and calcium aluminosilicate powder, panels coated with the coating composition, and a method of coating a panel with the coating composition. | 12-29-2011 |
20110283634 | SEISMIC PERIMETER BRACE - A seismic bracket for supporting ends of suspended ceiling grid runners from a wall comprising a stamped sheet metal body, the body having a horizontally extending portion and a vertically extending portion, the vertically extending portion, in its installed position, rising above the top of a standard grid runner a distance at least 1½ times the height of such standard grid runner, the vertically extending portion having two sections generally coextensive in the vertical direction, a first section being integral with the horizontally extending portion and a second section arranged to be in a vertical plane that intersects a vertical plane occupied by the horizontally extending portion, the horizontally extending portion being arranged to support a grid runner to move longitudinally a limited distance, the second section of the vertically extending portion having an aperture for securing the bracket to the wall at a location substantially above the grid tee. | 11-24-2011 |
20110147119 | POROUS NONWOVEN SCRIMS IN ACOUSTICAL PANELS - An acoustical building panel and method of manufacturing it are disclosed. Embodiments of the panel include a porous nonwoven scrim, a coating deposited on the scrim, a base mat, and an adhesive deposited on either the base mat or the scrim in a discrete form such as in droplets. Embodiments of the method of manufacture include steps of perforating the base mat, applying the adhesive to the base mat in the discrete form, laminating the scrim onto the base mat, and applying the coating to the scrim surface. | 06-23-2011 |
20110146194 | SEISMIC CLIP - A seismic clip for suspended ceiling grid tees that offers high strength, rigidity, versatility and ease of assembly while improving the ability of a clip to self-align with a grid tee. The clip includes a lanced tab that serves to establish and maintain alignment of the clip body and the tee to which it is assembled whereby a tendency of a clip to be tilted upwardly relative to the tee is eliminated or greatly reduced. The alignment tab serves to initially align the clip and tee either when it is assembled by snapping it over the tee or by sliding the tee endwise into the clip. The tab is configured so that it does not unduly add to the assembly force level when the clip is snapped over the tee or when the tee and clip are slipped endwise together. | 06-23-2011 |
20110146184 | CLIP CONNECTION - Producing grid tees with a range of service duty, reflected in the use of various gauge sheet stock, that exhibit an effective uniform thickness at their cross tee slots by locally altering a grid tee in the area of its cross tee receiving slot or slots so that the grid tee has a uniform effective thickness at these area(s) that can be standardized across a manufacturer's range of tee load ratings. Preferably, a grid tee is permanently stamped with an indentation or dimple adjacent the cross tee slot and a cross tee connector has a lead edge area arranged to seat against the bottom of the indentation. | 06-23-2011 |
20110131913 | CONNECTOR CLIP - An end clip for joining runners of suspended ceilings by coupling with an identical clip, the clip being stamped from sheet metal stock with lead and trailing ends, a lateral projection and a projection receiving area behind the lead end, the clip being arranged such that when an identical clip oriented in the opposite direction of the clip and caused to laterally overlap the clip the projection of the clip is locked in the receiving area of the identical clip and, vice versa, at least one of the projection and projection receiving area having a rearward facing sheared edge forming an acute angle with the clip plane resulting from being sheared with tooling having a clearance between tooling substantially greater than 10% of the thickness of the sheet from which the clip is stamped. | 06-09-2011 |
20110078969 | BRACKET USEFUL WITH SLOPED SUSPENDED CEILING SYSTEMS - The invention provides a bracket and method of its use for adapting standard wall angle trim for use in sloped ceiling construction. The disclosed bracket arrangement can be used for the top edge or bottom edge of a sloped ceiling and be adjusted to match the angle of any practical ceiling slope. In disclosed embodiments, the bracket has the form of a rectangular flat steel sheet. The sheet has a hinge or bend line running lengthwise in its mid-area. The bend line is made by cutting the sheet intermittently along its length and thereby dividing the sheet into two sections. The cuts may be made, for example, by punching elongated slots along the bend line in a blank being formed into the bracket. Also punched into the bracket blank are a plurality of holes distributed lengthwise on marginal areas of the two sections of the blank. | 04-07-2011 |
20110011023 | SECURE LOCKING ATTACHMENT DEVICE USEFUL WITH SUSPENDED CEILING SYSTEMS - An attachment device useful with suspended ceiling systems is provided. In disclosed embodiments, the device comprises a clip that matingly engages a bulb of a ceiling grid tee. The device may include a reinforcing sleeve and can be used to increase the load carrying capacity of suspended ceiling systems while providing a simple, quick method of attaching the suspended ceiling grid to the true ceiling. | 01-20-2011 |
20100320029 | LOW DENSITY NON-WOVEN MATERIAL USEFUL WITH ACOUSTIC CEILING TILE PRODUCTS - A non-woven material, that can be formed into an acoustic ceiling tile, is provided. The material includes a substantially planar and self-supporting core of an inorganic base fiber and a synthetic thermal bonding fiber. The synthetic thermal bonding fiber preferably has an increased bonding surface area that improves adhesion and porosity to provide a base mat or core with a low density to provide sound absorption required by an acoustic ceiling tile. | 12-23-2010 |
20100269444 | CEILING PANEL - A ceiling panel is provided for use in a grid-type suspended ceiling, wherein the grid includes a plurality of spaced grid runners. The ceiling panel comprises a tile base with perimeter segments and perimeter profiles along at least a portion of at least two of the perimeter segments. Each profile is supportable by the grid runners during suspension. A facing material is secured across the perimeter segments, and extends beyond the perimeter profiles in order to at least partially conceal two of the grid runners when the tile is suspended from the two grid runners and viewed from below. | 10-28-2010 |
20100257807 | EXTENDED SHORT SPAN TEE FOR DRYWALL CEILING - A short span flat drywall ceiling construction comprising a pair of spaced parallel wall angles facing one another, the wall angles each having a vertical leg secured to vertical support surfaces and a horizontal leg cantilevered from its respective vertical leg towards the other wall angle, a plurality of substantially identical roll-formed sheet metal tees extending between the wall angles and vertically supported thereby, each tee having a main body formed of a single strip of sheet steel, the tee having a horizontal single layer lower flange, a vertical double layer central web disposed above the flange, and a bulb at the top of the web centered on a plane of symmetry, a sheet metal U-shaped reinforcement channel fitted on a central part of the length of the tee such that it is in contact with at least the sidewalls of the bulb. | 10-14-2010 |
20100199594 | MOUNTING CLIP - An L-shaped clip for mounting a trim member along an exposed edge of a suspension ceiling includes a support leg to be longitudinally secured to a grid tee and a perpendicular face leg to be secured to the trim member. The support leg includes offset clip walls for engagement with offset tee walls and clip abutment surfaces for engagement with tee abutment surfaces. The offset walls and abutment surfaces cooperate to assist in the alignment and mounting of the clip to the grid tee at different relative heights. A single clip may be mounted to either a T-shaped grid tee or an open channel grid tee. | 08-12-2010 |
20100170702 | ELECTRICALLY CONDUCTIVE MODULE - An electrically conductive module is provided. The module includes a panel configured to engage with one or more conductive structural elements. The module further includes conductive layers formed on or in the panel. Each conductive layer has a terminal configured to be in electrical communication with at least one of the conductive structural elements. In one embodiment of the present invention, a first terminal is configured to be in electrical communication with a first conductive structural element and a second terminal is configured to be in electrical communication with a second conductive structural element. In another embodiment of the present invention, both a first terminal and a second terminal are configured to be in electrical communication with a first conductive structural element. In this embodiment, the first and second terminals are respectively configured to be in electrical communication with first and second conductive portions of the first conductive structural element. | 07-08-2010 |
20100170616 | ELECTRICALLY CONDUCTIVE TAPE FOR WALLS AND CEILINGS - An electrically conductive tape for walls and ceilings is provided. The tape includes a substrate configured to be applied to at least one surface including at least one surface of a wall or ceiling and at least one conductive layer applied to the substrate. The conductive layer is penetrable by at least a conductor of an electrical device to provide an electrical connection thereto. In one embodiment the conductive layer is formed from a conductive composition including an electrically conductive material therein. The conductive composition can include a conductive ink. A method of manufacturing an electrically conductive tape or film for walls and ceilings is also provided. The method includes providing a conductive composition including an electrically conductive material therein, and providing a substrate configured to be applied to at least one surface including at least one surface of a wall or ceiling. The method also includes applying the conductive composition to the substrate forming a conductive layer attached to the substrate, the conductive layer being penetrable by a conductor of an electrical device. | 07-08-2010 |
20100156196 | ELECTRICALLY CONDUCTIVE ELEMENT, SYSTEM, AND METHOD OF MANUFACTURING - An electrically conductive element, including an insulator and a first conductor, is provided, which can be affixed to a second conductor consisting of conductive structural element, wherein the insulator is positioned between the first and second conductors to electrically isolate them. A power supply may be connected between the first and second conductors to provide power thereto, and an electrical device may be connected across the first and second conductors. | 06-24-2010 |
20100154341 | WALL MOLD ATTACHMENT CLIP - A clip for attaching the end of a grid tee to a wall angle. The clip, in various forms, is arranged to frictionally lock between the hem of the horizontal leg of the wall angle and the vertical leg. The clip, typically, has a pair of opposed open hems forming channels in which the flange of the tee end is received to join the tee to the clip. The clip can be elongated horizontally to accommodate movement of the grid during seismic activity. The clip can be used to trim the edges of a ceiling island and can be made to accommodate angular intersections of the grid with a wall or island edge. | 06-24-2010 |
20100139190 | DIRECTLY ELECTRIFIED CEILING GRID - An electrified grid for a suspended ceiling comprising first and second grid sections lying in a common ceiling plane, each grid section having metal main tees and metal cross tees intersecting with the main tees, the first and second sections being adjacent one another and having respective main tees in parallel alignment and with a fixed spacing not substantially greater than the length of the cross tees, the grid sections being electrically insulated from one another whereby at least said main tees of fixed spacing can be held at opposite voltage polarities and an electrical or electrical device carried on or above the ceiling can be powered by electrical connection of separate ones of its leads to the metal tees of a respective one of said first and second grid sections. | 06-10-2010 |
20100139189 | CONCEALED SUSPENSION CEILING WITH DOWNWARD REMOVABLE PANELS - A suspended ceiling system comprising metal grid members and rectangular composite acoustical panels, the panels having edges at their peripheries, the grid members having a cross section generally like an inverted T such that they provide oppositely extending flanges adapted to support the panels at their edges, a resilient element at a juncture between a support on the grid member flanges and at least one edge of each panel, the resilient element being arranged to temporarily deflect to permit a panel to be raised from below the grid member into an installed position and to extend itself to hold such panel in position on the grid. | 06-10-2010 |
20100130055 | ELECTRIFIED SUSPENDED CEILING GRID - A suspended ceiling grid tee of conventional cross-sectional shape having a plurality of generally planar parallel and orthogonal surfaces and at least two electrically isolated conductor strips attached to the planar areas of the tee surfaces extending along substantially the full length of the tee, a connector for supplying low voltage electrical power to or from the conductors, the connector having a configuration complementary to the cross-sectional shape of the grid tee and including at least two electrical contacts for energizing each of said conductor strips when said connector is positioned on said grid tee. | 05-27-2010 |
20100126105 | MULTI-CIRCUIT ELECTRIFIED CEILING GRID - A suspended ceiling elongate grid tee having a lower flange, a vertical web, and an upper hollow reinforcing bulb, at least some of the flange, web and bulb elements, having relatively flat exposed or accessible surfaces, and a plurality of pairs of conductors attached to said flat surfaces and extending along substantially the full length of the tee whereby grid tee is capable of carrying at least two fully independent DC circuits. | 05-27-2010 |
20100126104 | ELECTRIFIED CEILING GRID - An elongated grid tee for supplying low voltage power on a suspended ceiling comprising at least two electrically conductive paths electrically insulated from each other, extending lengthwise of the tee, and accessible for receiving or supplying electrical power at numerous locations along the length of the tee. | 05-27-2010 |
20100126090 | SPECIALTY CEILING STRUCTURE AND FUNCTIONAL CEILING GRID - A rectangular ceiling tile proportioned for use in a standard rectangular ceiling grid module formed by grid tees, the tile having a pair of conductors arranged to feed low voltage electrical power from the grid elements to an electric or electronic device carried on the tile, the conductors each extending to an edge or edges of the tile and adapted to make physical contact with a conductor carried on a grid element when supported on such grid element. | 05-27-2010 |
20100095606 | FACETED METAL SUSPENDED CEILING - A non-planar suspended panel system comprising a metal grid formed of curved main runners and straight cross runners extending between the main runners, a plurality of panels supported on the grid, the panels each having flat major faces with quadrilateral profiles, the edges of a panel being aligned with a pair of main runners and a pair of cross runners, each panel having flanges at its edges extending between its flat face and the runners in a manner that disposes the plane of its flat face generally parallel to chordal lines in the planes of the main runners between the intersections of the associated cross runners and main runners, whereby the panel system extends over a three dimensional surface and the surface is formed of a multitude of facets each formed by one of said panels. | 04-22-2010 |
20100050554 | PANEL ATTACHMENT CLIP - A clip for suspending ceiling panels from a horizontal channel having a C-shape formed by a vertical web and integral opposed horizontal upper and lower flanges, the clip comprising a sheet metal body, the body including a vertical web extending between upper and lower portions, the upper portion being configured to overlie the horizontal upper flange of the channel when installed thereon, the lower portion being configured to lie below the horizontal lower flange of the channel, the lower portion including a generally upstanding hook section adapted to be received in a downwardly open channel on the ceiling panel beneath the C-shaped channel to enable the clip to support the panel by transferring the weight of the panel to the C-shaped channel, the hook section being fixed against horizontal movement relative to the body vertical web. | 03-04-2010 |
20100005747 | SEISMIC CLIP FOR GRID TEE CONTROL JOINT - A clip for bridging a longitudinal gap between a pair of grid tee lengths, the clip having a cruciform shape in plan view formed by a set of four integral arms, one pair of the arms extending along a first line in opposite directions from a center of the clip, and another pair of arms extending along a line perpendicular to said first line in opposite directions from the center of the clip, said arms when oriented for installation having an inverted U-shape cross-section proportioned to fit over a respective one of four intersecting lengths of grid tees having an inverted T-shape with a reinforcing hollow bulb at its upper edge, at least one of said arms having a longitudinally extending fastener receiving slot and other of said arms having locations for receiving respective fasteners, said slot and receiving locations each being arranged to receive a fastener and allow the fastener to be anchored into the bulb of an associated tee, said slot being arranged to allow its respective grid tee length to telescope within the associated arm. | 01-14-2010 |
20090308013 | EXPANDABLE CEILING GRID - A preassembled suspended ceiling grid module comprising a plurality of parallel main tees and a plurality of cross tees, the main and cross tees each having horizontal flanges extended to both sides of a central plane, the cross tees being joined at their ends to the main tees with end connections that enable the module to be folded in a plane corresponding to an eventual ceiling plane in a zigzag pattern, such that the cross tees lie in directions generally parallel to the main tees with the cross tees connected on a side of a particular main tee being folded in a common direction relative to their end connection, and where connected to an adjacent main tee being folded in an opposite direction relative to their end connections with said adjacent tee. | 12-17-2009 |
20090253323 | NON-WOVEN MATERIAL AND METHOD OF MAKING SUCH MATERIAL - A non-woven material and method of formation thereof is provided to form a substantially flat or planar self supporting core of an inorganic base fiber and an organic binding fiber preferably using an air-laid forming head. In certain preferred embodiments, the organic base fiber has a fiber strength with a break load of about 10 grams or less and an elongation of about 20 percent or less. Preferably, the organic binding fiber has a binding component and a structural component within unitary fiber filaments. In one aspect, the structural component of the organic binding fiber has a composition effective to provide a strength thereof so that the non-woven material can be manually cut with minimal effort. In such form, the non-woven material is suitable to function as an acoustic ceiling tile. | 10-08-2009 |
20090252941 | NON-WOVEN MATERIAL AND METHOD OF MAKING SUCH MATERIAL - A non-woven material and method of formation thereof is provided to form a substantially flat or planar self supporting core of an inorganic base fiber and an organic binding fiber preferably using an air-laid forming head. In certain preferred embodiments, the non-woven material has a basis weight of about 3,000 gsm or greater. Preferably, the organic binding fiber has a binding component and a structural component within unitary fiber filaments. In one aspect, the structural component of the organic binding fiber has a composition effective to provide a strength thereof so that the non-woven material can be manually cut with minimal effort. In such form, the non-woven material is suitable to function as an acoustic ceiling tile. | 10-08-2009 |
20090173464 | ACOUSTIC CEILING TILES MADE WITH PAPER PROCESSING WASTE - A composition and process suitable for making acoustic tiles are disclosed. Certain embodiments of the composition comprise: perlite; inorganic material selected from the group consisting of calcium sulfate, calcium carbonate, clay and mixtures thereof; a binder selected from the group consisting of starch, a combination of starch and cellulosic fibers, latex, kraft paper gel and mixtures thereof; optionally mineral wool; optionally gypsum; and cellulosic fiber, wherein at least a portion of the cellulosic fiber and at least a portion of the inorganic material are pulp and paper processing waste comprising cellulosic fiber, clay and calcium carbonate. Certain embodiments of the process comprise: forming an aqueous slurry; continuously flowing slurry onto a moving foraminous wire to form a cake; dewatering the cake to form a base mat; and drying the base mat. | 07-09-2009 |
20090173030 | Ceiling Panel - A ceiling panel is provided for use in a grid-type suspended ceiling, wherein the grid includes a plurality of spaced grid runners. The ceiling panel comprises a tile base with perimeter segments and perimeter profiles along at least a portion of at least two of the perimeter segments. Each profile is supportable by the grid runners during suspension. A facing material is secured across the perimeter segments, and extends beyond the perimeter profiles in order to at least partially conceal two of the grid runners when the tile is suspended from the two grid runners and viewed from below. | 07-09-2009 |
20090158684 | GRID TEE FOR SUSPENSION CEILING - In one embodiment, a roll-formed sheet metal tee for grid type suspended ceilings with the face of its flange integral with the stem and the layers of the stem fixed together for improved torsional strength. An upper region of the stem can have one or more of its layers folded to increase suspension wire breakout strength. A stiffening bulb is below suspension wire receiving holes so that a loop of the suspension wire through the tee has a narrow profile and thereby avoids interference with ceiling panels during their installation or removal. Other embodiments of a tee share the feature of a narrow, suspension wire receiving upper stem portion. | 06-25-2009 |
20090139158 | CONFORMABLE WIDE WALL ANGLE - A wide wall angle useful in locations of seismic activity to support ceiling tile and grid tees of a suspended ceiling comprising an assembly of an elongated base angle and an elongated extension strip, the base angle having generally perpendicular legs integral with one another and intersecting at a longitudinally extending corner, one leg being adapted to be fixed against a wall with the corner down, and the other adapted to project horizontally from the wall, the extension strip having a face with greater than the width of the horizontal leg, the extension strip having a multiple layer construction, two layers of the extension strip being held together in close parallel relation by an intermediate web integral with the layers, at least portions of the two layers being arranged to frictionally engage at least a part of the horizontal leg of the base angle spaced from the corner such that the strip can be assembled on and frictionally retained on the horizontal leg of the base angle, the horizontal leg of the base angle being disposed between the two layers of the extension strip. | 06-04-2009 |
20090126886 | PROCESS FOR PRODUCING A LOW DENSITY ACOUSTICAL PANEL WITH IMPROVED SOUND ABSORPTION - A process useful for producing low density high mineral wool based acoustical panels with improved acoustical absorption properties using a water felting process is disclosed. The process includes forming a dilute slurry mixture including water, mineral wool, a thermoplastic binder and/or starch; and distributing the dilute slurry on a porous carrier to have the slurry dewatered to a base mat by gravity drainage to remove water by gravity. A vacuum is adjusted to gradually apply vacuum to the gravity dewatered base mat to further dewater the base mat without subjecting the mat to static pressure that would compress the base mat. The base mat is dried to form an acoustical ceiling product that has a low density and excellent acoustical absorption properties. | 05-21-2009 |
20080301572 | METHOD AND SYSTEM FOR LAYING OUT PERFORATION PATTERNS - A method and system for automating the layout of perforation patterns is described. An embodiment of the invention includes an innovative software application running on a computer, which application allows a perforation designer to select lines or arcs that comprise edges of a building panel. The application determines a starting hole spacing based on the average distance through the geometric center of the panel, and a default perforation pattern is laid out on a computer aided drawing. The application provides the user with detailed information about the perforation layout such as number of perforations, panel area, and percentage of open area. The application further allows the user to change any parameter such as hole size, hole spacing, hole shape, and edge spacing. After any user adjustment of the parameters, the application automatically updates the perforation pattern. | 12-04-2008 |
20080289280 | SINGLE WEB GRID WITH REINFORCED BULB - Manufacture of roll formed one piece sheet metal grid tees that affords different load ratings with the same gauge and quality of sheet stock and the same overall cross-section dimensions by varying the width of the strip used to make the tees and disposing material added for increased load rating at the area of the hollow reinforcing bulb of the tees. | 11-27-2008 |
20080216936 | CEILING TILE CONSTRUCTION - A ceiling tile of gypsum and cellulose fibers formed into a board by initially mixing the fibers and gypsum in a water-based slurry that is felted and thereafter pressed and dried with a desired board thickness, the dried board being processed to form a plurality of holes in a face thereof through at least the majority of the thickness of the board, the collective volume of the holes being sufficient to reduce the weight of the board by at least 10% and increase the NRC exhibited by the board over that which would otherwise be found in a board of the same composition without such holes. | 09-11-2008 |