CROSS-REFERENCE TO RELATED APFLICATIONS j0O l] The present application claims the benefit of United States Provisional Patent Application Serial No. US 61/696,424 filed September 4, 2012, the entirety of which is incorporated herein by reference,

FIELD OF THE INVENTION

[0002] The presen invention relates to ceiling systems, and more particularly to a monolithic ceiling system formed wile, tiles,

BACKGROUND OF THE INVENTION

(0903] One type of ceiling system includes individual ceiling tiles which are installed in a suspended overhead support grid to collectively form a monolithic ceiling in appearance. The grid generally comprises an arra of horizontal interlocking grid support members which may typically be arranged in a rectilinear pattern forming openings sized to locate and receive a portion of the tiles therein for attachment to the grid. The ceiling files are generally supported at their perimeter by the grid when fully mounted.

(0004] Variations in the aesthetic appearance of the ceiling system are desirable for creating customized designs.

SUMMARY OF THE INVENTION

(0005] The present invention provides a ceiling system which allows customized creation of user-selectable three-dimensional visual effects baaed on the mounting positions (e.g.

horizontal orientation) of the individual ceiling tiles. The ceiling tiles may be configured with at least two opposing rebated peripheral sides having tegular edges configured for mounting to an overhead support grid. One embodiment includes a flush tegular edge when mounted and an opposing deep recessed tegular edge which creates a reveal that projects down ward below the support grid. The bottom surface of the ceiling tile may therefore be angled and lie in different horizontal planes when mounted to the grid.

(0006] In various arrangements, the ceiling tile and mounting system allows creation of undulating ceiling configurations such as without limitation a facetted hill and valley, pinwheel, shingled effect, combinations thereof, and others via detachably mounting the ceiling tiles to the grid support members in differen horizontal positions or orientations, in addition, the original, visual appearance of the ceili ng system ma be readily changed later if

- i - desired by simply changing the moun ting -position of some or all of the ceiling tiles in the grid.

}0e07J According to one exemplary embodiment, a ceiling system includes an overhead support grid defining a grid opening configured for locating a ceiling tile therein, and a ceiling tile positioned in the grid opening. The ceiling tile has a top surface, a bottom surface, a first tegular edge engaging the support grid, and. an opposing second tegular edge engaging the support grid. The .first tegular edge has a configuration different than the second tegular edge. In one preferred embodiment, the ceiling tile has a substantially uniform thickness between the first and second tegular edges wherein the top and bottom surfaces of the ceiling tile are substantially parallel, in one embodiment, the first tegular edge has a deep recess and the second tegular edge has a shallow recess, and may be a flush recess for locating the bottom, surface of the ceiling tile in a substantially flush position with respect to the bottom of the support grid. The fi rst tegular edge therefore sits lower in the support grid than the second tegular edge. When mounted in the support grid, the ceiling tile- is seated in an angled position.

[0008} According to another embodiment, a ceiling system includes an overhead support grid comprising intersecting grid support members defining a grid, opening configured for locating a ceiling tile therein, and a ceiling tile positioned in the grid opening, the ceiling tile having a top surface and a bottom surface oriented parallel to the top surface. The ceiling tile has a first peripheral side defining a downward .feeing first support surface engaging one of the grid support members and an opposing second peripheral side defining a downward facing second support surface engagin a second grid support members. The first and second support surfaces are configured so that the ceiling tile is angled i orientation with respect to a horizontal reference plane defined by the grid support, members when the ceiling tile Is mounted in the support grid. In one embodiment, the ceiling tile has a substantially uniform thickness between the first and second peripheral sides.

fu(M)*>] According to another embodiment, a customizable ceiling system is provided. The ceiling system includes an overhead support grid, comprising intersecting grid support members defining a plurality of grid openings configured for locating ceiling tiles therein, and a plurality of ceiling tiles each positioned, in one of the grid openings. The ceiling tiles have a top surface and a bottom surface oriented parallel to the top surface. The ceiling tiles each have a first peripheral side defining a downward facing first support surface engaging one of the grid support members and an opposing second peripheral side defining a

downward facing second support surface engaging a second grid support members. The first and second support surfaces of each ceiling tile are configured so that the ceiling tile is angled in orientation with respect to a horizontal reference plane defined by the grid support niembers when the ceiling tiles are mounted in the support grid. The first peripheral side of each ceiling tile defines an outward facing end surface extendin downwards below the support grid and creating an exposed visible reveal

BRIEF DESCRIPTION OF THE DRAWINGS

jO lO j The features of the exemplar embodiments of the present invention will be described with reference to the following drawings, where like elements are labeled similarly, and in which:

[Θ0Π) FIG. i is a perspective view of a ceiling tile for use in a ceiling system according to the present disclosure;

[O0J 2} FIG. 2 is a bottom plan view thereof;

j 0I3{ FIG. 3 is a. first side elevation view thereof the view taken from a first orthogonal direction;

[0014] FIG, 4 is an enlarged detail IV from FIG. 3;

10015) FIG. 5 is an enlarged detail V from FIG. 3;

{0016] FIG. 6 is a second side elevation view of the ceiling tile of FIG. 1, the view taken from a second orthogonal direction;

[00 J 7) FIG, 7 is a perspective view of an alternative embodiment of ceiling tile for use in a ceiling system according to the present disclosure;

10018] FIG. 8 is a bottom plan vie thereof;

[0019] FIG. 9 is a first side elevation vie thereof, the view taken from a first orthogonal direction;

[0020) FIG. 10 is an enlarged detail X from FIG. 9;

[002i ] FIG. 1 1 is an enlarged detail XI from FIG, 9;

[0022) FIG, 12 is a second side elevation view of the ceiling tile of FIG. 7, the view taken from, a second orthogonal direction;

j 0023 j FIG. 13 is a first side elevation view of a ceiling system comprising an overhead support grid and ceiling tiles of either FIGS, I or 7, the view taken from a first orthogonal direction;

[0024] FIG. 14 is an enlarged detail XIV taken from FIG. 13;

[0025) FIG. 15 is a second stde elevation view of the ceiling system of FIG. 13, the view taken from a second orthogonal direction; (Θ026) F 3, 16 is a perspective view of ceiling system of FIG. .13 viewed from beneath the ceiling tiles;

(0027] FIG. 1 ? is a bottom plan view thereof;

(0028] FIG. 18 a cross-sectional side vie taken along lines XVI!I - XVIII in FIG. 17; (0029] FIG. 19 is an enlarged detail XIX taken from FIG. 1 8;

[0030] FIG. 20 is an enlarged detail XX taken from FIG, 1 ; and

10031) FIGS, 21A-24B each illustrate a bottom plan view and corresponding side elevation views of several exemplary ceiling tiles and mounted pattern configurations which may be created with a ceiling system according to the present disclosure.

10032 J All drawings are schematic and not necessarily to scale. Parts given a reference numerical designation in one figure may be considered to be the same parts where they appear in other figures without a numerical designation for brevity unless specifically labeled with a different part number and described herein.

DETAILED DESCRIPTION OF THE EMBODIMENTS

(0033] The features and benefits of the invention are illustrated and described herein by reference to exemplary embodiments. This description of exemplar embodiments i intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. In the description of embodiments disclosed herein, any reference to direction or orientation is merely intended for convenience of description and is not intended in any way to limit the scope of the present invention.

Relative terms such, as "lower," "upper," "horizontal," "vertical,", "above," "below," "up," "down," "top" and "bottom" as well as derivative thereof (e.g., "horizontally,"

"downwardly," "upwardly," etc.) should be construed to refer to the orientation as then described or as shown in the drawing under discussion. These relative terms are for convenience of description only and do not require that the apparatus be constructed or operated in a particular orientation. Terms such as "attached," "affixed," "connected," "coupled," "interconnected," and similar refer to a relationship wherein structures are secured or attached, to one another eiiher directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise. Accordingly, the disclosure expressly should not be limited to such exemplary embodiments illustrating some possible non-limiting combination of features that may exist alone or in other combinations of features. [0034} FIGS. 1-6 depict an exemplary ceiling tile 100 according o one embodiment of the present disclosure... Ceiling iiles 1.00 are configured for mounting in openings of art overhead support grid 200, as further described herein. The ceiling tiles 1 0 and support grid 200 collectively define a ceiling system 300 havin the ability to produce different three- dimensional visual effects by varying the position of the ceiling tiles,

[0035] Ceiling tile 100 includes an upper surface 102, lower surface 104, and four peripheral sides 1.06, 108, 1 1 , and 1 12. Peripheral sides 1 6 and 108 are opposing and may each define a tegular edge in profile in one non-limiting embodiment Peripheral side 1 06 includes a downward facing offset support surface 1 6a formed on laterally-extending back flange 106b that is configured to engage a mating upward lacing support surface 204 defined on overhead support grid 200 {see, e.g. FIG, 20). Support surface 106a. is defined by recess 107 in side 106 and is offset from, the bottom sitriace 104 of ceiling tile 100 by a vetlicai distance V2. it will be appreciated thai distance V2 also defines the vertical depth of the recess 107. Recess 107 defines a laterally outward facing end surface F2 on side 106 of ceiling tile 1 0 within the recess . The end surface F2 (lower portion of sarface 1 6 within recess 107) may be offset horizontally from the upper portion of surface 106 above die recess by a horizontal distance H2. in one embodiment, the top of end surface F2 may be angled, inwards towards the center of the ceilin g tile 100, Support surface 106a is oriented substan tially parallel to bottom surface 1 4 of ceiling iiie 1 0 in one embodiment,

[0036] Opposing peripheral side 1 8 includes a downward facing offset support surface 1 08a formed on laterally-extending back flange 1 8b that is configured to engage a mating upward facing support surface 204 defined on overhead support grid 200 (see, e.g. FIG. 20). Support surface 108a is defined by recess 109 in side 108 and is offset from the bottom surface 1 04 of ceiling tile 100 by a vertical distance VI . It will be appreciated that distance VI also defines the vertical depth of the recess 1 9. Recess 309 defines a laterally outward facing end surface Fl on side 108 of ceiling tile 100 within the recess. The end surface F.t (lower portio of surface 108 within recess 109) may be offset horizontally from the upper portion of surface 108 above the recess by a horizontal distance H I , In one embodiment, the top of end surface Fl may be angled inwards towards the center of the ceiling tile 100. Support surface 1,08a is oriented substantially parallel to bottom surface 104 of celling tile 100 in one embodiment,

(0037 The tegular edges of peripheral sides 106 and 1 8 may be different in configuration to create a three-dimensional visual effect when mounted in the overhead support grid 200 of the ceiling system 300, Accordingly, in one embodiment, recess 109 in peripheral side 1 8 may ^' be deeper (higher) than recess 107 in peripheral side 106 by making vertical, distance VI larger than vertical distance V2 measured to the offset support surfaces i Sa and 106a, respectively. Outward facing end surface Fi within recess 109 will therefore have a greater height and exposed surface area below the overhead support grid 200 than end surface F2 within recess 107. When mounted in overhead support grid 200 (as shown in F!GS, 13-14 and 17-1 ), the top and bottom surfaces 102, 104 of the ceiling tiles 100 will he angled in orientation (and appearance) with respect to the grid support members 202 due to the difference in recess depths (heights) in peripheral sides 106 and 1.08.

[Θ038] With continuing reference to FIGS. 1-6, in one embodiment the remaining opposing peripheral sides 1 10 and i .12 may have plain or straight edge profiles without any offset support surfaces or recesses. With these edge configurations, the ceiling tiles 100 preferably have a horizontal width .measured between sides i 10 and 1 .12 that is dimensioned to fit in between opposing grid suppori members 202 (see, e.g. FIGS, 17-20) without engaging upward facing support surface 204 of the grid suppori members. Sides 110 and 1 12 therefore do not engage grid support members 202. The ceiling tile 100 is supported within the overhead support grid fay the tegular edges on opposing peripheral sides 1 6 and 108. This tile configuration may be used, for field tiles (i.e. those not lying along the perimeter of ceiling system 300.

|β039] FIGS. 7- .12 show an. alternati e embodiment of ceiling tile 100 that may be useful for border tiles in which either tegular edge on peripheral sides 106 or 1.08 may need to be cut or severed by an installer to reduce the wid th of the ti le. Thi s would produce an. essentially straight side without a tegular edge that does not engage the overhead support grid 200. In this embodiment, the remaining opposing peripheral sides 1 1 and 1 12 of ceiling ie 100 are also configured with tegular edges. Sides 1 10 and. 1 12 each include an angled downward facing offset support surface 1 10a and 1 1.2a formed on laterally-extending back flanges 1 1 b and 112b, respectively. Support surfaces .1 .10a and .1 12a are defined by recesses 11 1 and i .13 espectively m peripheral sides 1 10 and 1.1.2, and. may each be offset, from the bottom surface 104 of ceiling tile 100 by a varying vertical distance V3 between sides 106 and 108. Support surfaces .1 10a, 1 12a are oriented at an angle Al between 0 and 45 degrees to bottom surface 104 of ceiling tile 100 ( thereby producing the vary ing distance V3). in on embodiment representative example, without limitation, angle A! may be abou 3-5 degrees.

(0040] Suppori surfaces 1 10a, 1 12a each intersect downward facing offset support surfaces 106a and 110a such that a continuous rectilinear-shaped peripheral downward facin support surface is formed around all sides of the ceiling tile 100 for engaging the overhead suppori grid 200, as further described herein. This embodiment provides support of the ceiling tile 100 on all. sides when hung in full-sized grid openings 208 of support grid 200. Even if either peripheral side 106 or 108 needs to he field trimmed to fit a reduced size grid opening 208, the ceiling tile 100 will still be adequately supported on three remaining peripheral sides by the support surfaces on the back flanges.

[0041] When ceiling tiles 100 are mounted in the overhead support grid 200, exposed outward facing end surfaces F3, F4 of peripheral sides 110, i 12 within recesses I I I, 1 13 lying below support surfaces 11 Oa, 1 12a create opposing angled vertical reveals visible to room occupants. The angled end surface F3, F4 reveals are highest adjacent peripheral side 108 and narrow approachin peripheral side 1 6 (see also FIG. 14).

)0042 In one embodiment, the ceiling tiles 100 may have a substantially uniform overall thickness T ^' l as shown in FIGS. 3-5 between peripheral sides 1 6 and 108, and further between peripheral sides 1 10 and 1.12, Accordingly, top surface 102 is substantially parallel to bottom surface 104 of the ceiling tile 100. The angled orientation and appearance of the bottom surfaces 104 of the ceiling tiles 100 (and formation of a reveal on end surface Fl on peripheral side 108 as described further below) is achieved, through the different recess depths or heights (i.e. vertical distances V2 and VI ) in the tegular edges of periph eral sides 106 and 108 instead of varying the thickness of the ceiling tiles at different spots which would increase the weight of the tiles and be more costly to produce. Advantageously, this further minimizes the total installed weight of the ceiling tiles that must be supported by the overhead support grid 200 thereby saving money by allowing structurally lighter grid support members to be provided.

|Θ043] When ceiling tile 1 0 is fully mounted in an angled position to support grid 200, the reveal is created on peripheral side 1 8 by the projectio of end surface F l below the bottom 206 of the grid support members 202, The reveal is visible to room occupants within the space below the ceiling system 300 (see, e.g. FIGS. 13- 14 and 18-20) and creates a vertical rectangular face projecting below the support grid when viewed head on (i.e. perpendicular to peripheral side 1 8.

[Θ044] To maintain the position of the end surface F t reveal in a substantially vertical plane as viewed by the room occupants when, using ceiling tiles .1 0 of uniform thickness T.l as described above, the end surface Fl preferably is disposed at an angle A2 with respect to the top surface 102 of the ceiling tile 100 as show n m FIG. 5. Because top and bottom surfaces 102, 104 are parallel to each other, end surface Fl is therefore also disposed at an angle to the bottoin surface of the ceiling tile. Angle A2 is measured between a vertical reference line Rl which lies perpendicular to top surface 102 (i.e. 90 degrees thereto) and the plane of the end surface PI . In some exemplary embodiments, angle A2 may be between 0 degrees and 45 degrees depending on the vertical depth of the recess 109 (i.e. vertical distance V 1), with deeper recesses requiring generally larger angles A2 to maintain the end surface Fl reveal in a substantially vertical plane. In one embodiment representative example, without limitation, angle A2 may be about 3-5 degrees. To further produce the vertically oriented end surface Fl reveal, the angle A3 measured between end surface Fl and downward facing support surface 108a on peripheral side 108 of ceiling tile 100 is preferably at a 90 degree angle A3 (i.e. perpendicular). Downward facing support surface 108a would therefore not be parallel to top and bottom surfaces 1 2 and 104.

|004S End surface F2 on opposing peripheral side 1 6 may be angled similarly to end surface Fl. described above, or in other embodiments may be vertically straight (i.e.

perpendicular to top and bottom surfaces 1 2 and 104 of ceiling tile 100 depending on the vertical depth (i.e. vertical distance V2) of recess 107. For small vertical depths, as illustrated in FIG. 4, a straight end surface F2 may be used as there may be no reveal or a minimal reveal, which would not be noticeable to a room occupant. In one embodiment, a straight end surface F2 is used.

1Θ0 61 Ceiling tiles 100 may be made of any suitable material, including for example without limitation fiberglass, a mineral fiber substrate, wood, or other materials and various combinations of materials. The ceiling tiles 100 may further be structured to be pliable or non-pliable in various embodiments. Accordingly, the invention is not limited, by the selection of ceiling tile material or construction.

j0047j FIGS. 13-20 depict the overhead support grid 200 for perimeter mounting and hanging the ceiling tiles 100 in ceiling system 300. Support grid 200 includes a plurality of intersecting and elongated grid support members 202 forming an array of grid openings 208 configured and dimensioned to receive ceiling tiles 100 therein. In some embodiments, the grid support: members 202 may be arranged in an orthogonal pattern forming rectilinear grid openings 208 such as squares or rectangles for ceiling tiles 1 0 having complementary configured shapes (in top plan view). The terminal ends of at least some of the grid support members 202 may be configured to interlock with other transversely oriented grid support members 202 at right angles to form the rectilinear grid, pattern in a manner well known to those skilled in the art without further elaboration. Any suitable interlocking mechanism and configuration may be used. 1Θ048] In transverse cross section, grid support members 202 may have a generally inverted T-shaped cowfiguration when in the mounted position suspended from a ceiling structure or other overhead support structure. In this embodiment, grid support members 202 may include a longitudinally-extending horizontal bottom flange 210, a bulbous top stiffening channel 220, and a vertical web 212 extending upwards from the flange to the stiffener. The grid support members 202 each define a longitudinal axis LA. Web 212 may be centered between opposing side ends of f!ange 212 in one embodiment. This defines a pair of upward facing support surfaces 204 on each, side of the web for seating a portion of a ceiling tile edge thereon, such as downward facing offset support surfaces 1.06a, 108a, Ϊ 10a. and/or 1 12a (see FIGS. 4-5 and 7- 1 2). Bottom flange 210 further defines a bottom, surface 206 facing downwards towards a room or space below the support grid. Bottom surface 206 may be generally disposed opposite support surfaces 204 on the flange. Bottom surface 206 defines a first horizontal reference plane PI of the overhead support grid 200. in one embodiment, the bottom surfaces 206 of at least four intersecting grid support members 202 defining a grid opening 208 in which a ceiling tile 1.00 is mounted all lie in the same horizontal reference plane PI . Accordingly, these four intersecting bottom surfaces 20 are positioned at essentially the same elevation.

10O 9 Although the exemplary embodiment of grid support member 202 has an inverted T-shaped cross sectional configuration, it will be appreciated that other suitable cross sectional configurations may be used so Song as an upward facing support surface 204 is provided on at least some grid support members 202 for holding ceiling tiles 100.

Θ 50 Grid support members 202 may be supported from and suspended below a ceiling 21 or other overhead support structure (e.g. beam, deck, etc.) by vertical hangers 214 having any suitable configuratio including for example without limitation wires, cables, rods, stmts, etc. Hangers 214 may be attached at one end to the ceiling 216 or other overhead structure by appropriate mounting components (e.g. expansion or anchor lugs, welding, clamps, brackets, etc.) and at an opposite end to the support members 202 by any suitable method (e.g.

fasteners, brackets, clamped, threaded rods, etc). Hangers 214 may be spaced along the length of the grid support members 202 at appropriate intervals to properly support the weight of the ceiling tiles 1.00. Therefore, any suitable number and spacing of hangers 21 ma be used,

JOOSl Grid support members 202 may be made of metallic or non-metallic material suitable to hold the intended dead or weight load of ceiling tiles 100 without undue deflection. In some preferred but noti-limiiing embodiments,, support members 1 it) may be made of metal including aluminum, titanium, steel, or other.

(0952] Mounting of the ceiling tiles I 00 to overhead support grid 200 will now be described in further detail. FIGS. 16 and 1? show a complete ceiling system 300 with ceiling tiles 100 m a fully mounted position supported by the overhead support grid 200, FIGS. 13-15 and 18- 20 show various side elevation and cross-sectional views of the ceiling system with mounting details of the ceiling tiles 1 in overhead support grid 200. The end surface Fl reveals are visible projecting below from the grid support members 202.

jW053| Referring to the FIGS. 13-20, the tegular edges of peripheral sides 1 6 and 108 are shown engaged, with grid support members 202 to support the ceiling tiles 1 0 on at least two opposing sides. The downward facing offset support surfaces 106a and 108a formed on laterally-extending back flanges 106b and 1 8b of celling tile KMX respectively, are seated on mating upward facing support surfaces 204 of the grid support members.

[Θ054] When full mounted to the grid support members 202, the ceiling tiles 1 0 which have a substantially uniform thickness Tl in this embodiment are slanted or angled in orientation with respect to the support, members, and more particularly to horizontal reference plane PI defined by the ^' bottom surface of the support members. As shown in FIGS. 14, 19, and 20, the top surface 102 of the ceiling tile 1 0 slopes downward from peripheral side 106 having a shallow end recess 107 to peripheral side 108 having a deeper end recess 109, Accordingly, top surface 102 is disposed at an angle A4 (indicated in FIG. 14) formed between horizontal reference plane PI. and the top surface. Concomitantly, the bottom surface 104 slopes downward from peripheral side 106 to peripheral side 108. Bottom surface 1 4 is disposed at an angle A5 (indicated in FIG, 14) formed between horizontal reference plane PI and the bottom surface. The botiom corner .120 on peripheral side 108 (see also FIG. 5) projects below the bottom surface 206 of grid support member 202 and horizontal reference plane P i by vertical distance Dl which corresponds to the height of the end surface Fl reveal thai is visible to a room occupant. Ceiling tile bottom corner 120 defines a second horizontal reference plane P2 which lies parallel to horizontal reference plane Pi.

[Θ055] In the present embodiment, the bottom corner 122 on the opposing peripheral side 106 of ceiling tile 1 0 (see also FIG . 4) lies substantially on. the horizontal reference plane Pi as shown in FIGS. 14 and 20. Accordingly, the bottom comer 122 and botiom surface 104 of the ceiling tile adjacent peripheral side 106 is substantially flush with the bottom surface 206 of the grid support members 202 so that the grid support: members essentially visually disappears at this side of the ceiling tile. In other possible embodiments con temp Sated, the bottom end 1.22 may project: slightly downward below the bottom surface 20 of grid support member 202 and horizontal reference plane PI if desired for aesthetic reasons. It bears noting that, top corner 121 on peripheral side 106 of ceiling tile 100 is located higher than opposing top corner 123 on side 1 8 when fee ceiling tile is in the fully mounted position (with respect to horizontal reference plane PI ) because of the angled or slanted mounting position of the tile,

[0056] if the embodiment of ceiling tile 100 shown in FIGS. 7-1 1 is used with sloping or angled back flanges 11 b and 1 12b formed on tegular-edged peripheral sides 1 .1 and 1 1 , the angled downward facing offset support surfaces 1 1 a and 1 12a would, engage and rest on upward feeing support surfaces 204 of the grid support members 202 (shown extending horizontally side-to-side in FIGS. 14 and 20). FIG, 1 identifies support surface 1 10a in dashed lines to represent this engagement. The engagement on opposite peripheral side 1 10 not visible in FIG. 14 would be identical.

[0857] if the embodiment of ceiling tile 100 shown in FIGS. 1-6 having straight peripheral skies 11.0 and 1 12 without angled or sloping tegular edges is used instead, the straight sides would not engage grid support members 202. Rather, the straight peripheral sides 1 1 , 112 would simply pass alongside the horizontal bottom flange 210 of and through the grid support member 202.

[0058] Referring to FIGS. 13-20, a method of mounting the ceiling dies 100 in overhead support grid 200 may Include holding a ceiling tile in a tilted, or angled position (to horizontal) and then inserting one of peripheral sides 106 or 108 upwards into a grid support member 202 through a grid opening 208 from below the support grid 200. Assuming for example without limitation that side 106 is inserted first, for convenience of description, peripheral side 106 is .higher than peripheral side 108 which wottld be positioned below the support grid 200 and opening 208. Back flsnge 106b on peripheral side 106 of ceiling tile 100 may then be positioned and located above horizontal bottom flange 21 and over an upward feeing support surface 204 on. the bottom flange. The peripheral side .106 may then be lowered to engage downward facing support surface 1 6a of the ceiling tile with support surface .204 on the bottom flange 210 of grid support member 202. The ceiling tile 100 may still be in a generally tilted or angled, position with peripheral side 1.06 being higher than peripheral side 108 which may still be positioned below the support grid 200 and opening 208.

}00S9| The remaining peripheral side 108 is then rotated upwards (clockwise for example in FIGS. 1 and 20) so that back flange i08h moves upwards through grid opening 208 to a positioB just slightly higher than ^' bottom flange 210 of grid support member 202. .Preferably, the offset horizontal distances Ή2 and H12 on peripheral sides .106, 108 respectively (see FIGS. 4 and 5) are large enough to provide adequate lateral play for inserting one side 106 and then the remaining side 10$ through the grid opening 208 between two grid support members 202, Back flange 108b on peripheral side 108 of ceiling tile 100 may (hen. be positioned and located above horizontal bottom flange 210 and over an upward facing support suriace 204 on the bottom flange of grid support member 202. The peripheral side 1 8 may then be lowered to engage downward facing support surface 108a of the ceiling tile with support surface 204 on the bottom, flange 210 of the grid support member 202. The ceiling tile 100 is now fully mounted at the perimeter to the overhead support grid 200.

[0060] It will be appreciated that if peripheral side 108 was inserted first into the support grid 200 in lieu of peripheral side .1 during the ceiling tile mounting procedure, the foregoing installation sequence would simply be reversed.

[086 ^' J ] By varying the horizontal orientation of ceiling tile 100 in grid openings 208, numerous customizable ornamental ceiling configurations ma be created by selecting various combinations of positions for the end surface Fl reveal on peripheral side 108.

[0962] FIGS, 21A-B show one exemplary pattern producing a shingled visual effect. The end surface Fl reveals on peripheral sides 108 are positioned parallel to each other and at opposing ends of adjacent grid openings 208 (the arrows pointing to the location of end surface Fl. reveals on each ceiling tile 1 0). The ceiling tiles 100 have a square shape in top plan view i this embodiment.

[O063j FIGS. 22A-B show another exemplar} ¹ pattern producing a pimvheel visual effect. The end surface FT reveals on peripheral sides 108 are positioned at right angles to each other in adjacent grid openings 208 (the arrows pointing to the location of end surface F ^' l reveals on each ceiling tile 100). The ceiling tiles 100 have a square shape in top plan view in tins embodiment.

[006 ] FIGS. 23 A-B show another exemplary pattern producing a faceted hill and valley visual effect. The end surface Fl reveals on peripheral sides 108 are positioned parallel to each oilier and at adjoining ends of adjacent grid openings 208 (the arrows pointi ng to the location of end surface F 1 reveals on each ceiling tile 100 ). The ceiling tiles 10 have a square shape in top plan view in this embodiment.

[0065] FIGS. 24A-B show one exemplar pattern producing a shingled visual effect using ceiling tiles 100 having a rectangular or plank shape in top plan view in this embodiment It will be appreciated that the rectangular ceiling tiles 1.00 may also be arranged in the foregoing p nwheel or hill and. valley patterns. The end sur face F1 reveals on peripheral sides 108 are positioned at opposi ng ends of adjacent grid openings 208 (the arrows pointing to the location of end surface F t reveals on each ceiling tile 100).

(0066] It will be appreciated thai various combinations of the foregoing patterns or a multitude of other patterns may be used in a single ceiling system 300 advantageously providing a highly customizable appearance. Accordingly, the foregoing patterns are intended to provide only some illustrative, but non-limiting examples of the types of patterns thai may be created.

j0067| While the foregoing description and drawings represent exemplary embodiments of the present disclosure, it will be understood that various additions, modifications and substitutions may be made therein without departing from the spirit and scope and range of equivalents of the accompanying claims, in particular, it will be clear to those skilled in the art thai the present invention may be embodied in other forms, structures, arrangements, proportions, sizes, and with other elements, materials, and components, without departing from the spirit or essential characteristics thereof. In addition, numerous variations in the methods/processes described herein may be made within the scope of the present disclosure. One skilled in the art will further appreciate that the embodiments may be used with many modifications of structure, arrangement, proportions, sizes, materials, and components and otherwise, used in the practice of the disclosure, which are particularly adapted to specific environments and operative requirements without departing from the principles described herein. The presently disclosed embodiments are therefore to be considered in all respects as illusirative and not restrictive. The appended claims should be constraed broadly, to include other variants and embodiments of the disclosure, which may be made by those skilled in the art without departing from the scope and range of equivalents.

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