Body support cushion assembly

Abstract

A body support cushion assembly is provided that includes a mattress and a cover assembly including a fire sock, a first cover, and a second cover. The mattress includes two movable portions with a split defined between them and a keyhole defined at a terminal end of the split. The fire sock covers the top and sides of the mattress including between the split of the mattress, and the fire sock includes handles configured to pull the fire sock through the split. The first cover encloses the mattress and extends between the split of the mattress. The second cover is positioned over and dimensionally-sized to cover at least the top panel of the first cover. A fastener connects the second cover to the first cover along the perimeter of the second cover.

Description

BODY SUPPORT CUSHION ASSEMBLYRELATED APPLICATIONS

[0001] This application claims priority from U.S. Design Application Serial No. 29 / 978,684, filed December 13, 2024, the entire disclosure of which is incorporated herein by this reference.TECHNICAL FIELD

[0002] The present invention relates to adjustable mattresses and cover assemblies for such mattresses. In particular, the present invention includes mattresses with independently moveable portions that are adjacent to one another and cover assemblies that are designed to provide for such movement.BACKGROUND

[0003] Bed assemblies that make use of adjustable bases are becoming increasingly popular as an alternative to traditional bed assemblies. Unlike traditional bed assemblies that make use of rigid box springs or other similar bases, a bed assembly that makes use of an adjustable base can readily be adjusted by articulating the base into a desired ergonomic position. In other words, by articulating the adjustable base, a user can readily change the position of the mattress lying on the adjustable base and, consequently, can quickly match the position of the mattress to their specific preferences and, at least partially, individualize his or her level of sleep comfort.

[0004] As a further advancement in user comfort, certain adjustable beds allow for two users to independently change the position of the mattress on their individual sides of the bed. The use1TE104L:522US02:10011684:v2of such split-head adjustable mattresses, however, frequently leads to a number of issues regarding the longevity of the mattress.

[0005] As one way to increase the longevity and to protect a mattress and prevent it from becoming stained, torn, or otherwise damaged, mattresses are often surrounded by a mattress cover that completely covers the top, sides, and the bottom of the mattress. In most mattress covers, a zipper or other similar fastener is used to enclose the mattress cover on a single side or around a bottom portion of the mattress. Such mattress covers are often sufficient for protecting a mattress. However, in the event that the mattress cover does become stained, torn, or otherwise damaged, it may be exceedingly difficult to remove the mattress cover from the mattress and then replace it with a new or clean mattress cover. Additionally, mattress covers are almost always made from protective materials, such as plastics and coarse fabrics that prevent the underlying mattresses from becoming stained, tom, or otherwise damaged, but that can be irritating or uncomfortable to the skin of a user that comes into contact with such a mattress cover.

[0006] In this regard, mattress covers are often covered with a fitted sheet that completely covers the top of the mattress cover, the sides of the mattress cover, and a small portion of the bottom edge of the mattress cover (as a result of a lower edge of the fitted sheet being tucked under the mattress). Those fitted sheets typically provide a softer surface on which to rest the body of a user, and also typically provide a layer of material that can easily be removed and then cleaned or replaced should the fitted sheet become stained, tom, or otherwise damaged. Nevertheless, it is often the case that fitted sheets slip off of the mattress cover and the underlying mattress, and can thus potentially fail to provide a sufficient additional layer. Moreover, such fitted sheets are often made from materials that ultimately fail to protect the2TE104L:522US02:10011684:v2underlying mattress cover as any staining or damage to the fitted sheet will also typically affect the mattress cover. Accordingly, a cover assembly that can be securely fastened to a mattress, including split-head adjustable mattresses, and provide a more sufficient layer of protection and functionality would be both highly desirable and beneficial.SUMMARY

[0007] The present invention includes adjustable mattresses and cover assemblies for such mattresses. In particular, the present invention includes mattresses with independently moveable portions that are adjacent to one another and cover assemblies that are designed to provide for such movement.

[0008] In one exemplary embodiment of the present invention, a body support cushion assembly is provided that includes a body support cushion, a fire sock, a first cover, and a second cover. The exemplary body support cushion includes an upper surface, a lower surface opposite the upper surface, a stationary portion, a first moveable portion extending from the stationary portion, and a second movable portion extending from the stationary portion adjacent to the first movable portion. A split is defined between the first moveable portion and the second movable portion with the split extending from the upper surface to the lower surface. A keyhole is defined at a terminal end of the split with the keyhole also extending from the upper surface to the lower surface.

[0009] In some embodiments, the body support cushion includes a body supporting layer and one or more foam layers configured to support the body supporting layer. In some particular embodiments, the body supporting layer is comprised of a visco-elastic foam.

[0010] In some embodiments, the body support cushion includes a body supporting layer and an innerspring layer positioned below the body supporting layer. The inner spring layer includes3TE104L:522US02:10011684:v2a base layer, exterior foam rails positioned around a perimeter of the base layer, and an intermediate foam rail extending across a length of the support cushion such that the exterior foam rails and the intermediate foam rail define two cavities. A support insert is then provided within each of the two cavities. In such embodiments, the split and keyhole extend through the intermediate foam rail of the innerspring layer. In some particular embodiments, the support insert includes an array of springs configured to support the body supporting layer. In some particular embodiments, a reinforcing patch is affixed to the base plate, the keyhole and at least a portion of the split extending through the reinforcing patch. In some further specific embodiments, the reinforcing patch is comprised of a fabric and affixed to the base plate with an adhesive.

[0011] In some embodiments, the fire sock includes a top panel and a bottom panel. The top panel covers the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion. The top panel defines a split between the first movable portion and the second movable portion. The bottom panel is positioned opposite the top panel with the body support cushion positioned between the top panel and the bottom panel. The bottom panel defines an opening through which the body support cushion is inserted to place the fire sock on the body support cushion. One or more handles are affixed to the bottom panel adjacent to the split of the body support cushion and along the first movable portion of the body support cushion, and one or more handles are affixed to the bottom panel adjacent to the split of the body support cushion and along the second movable portion of the body support cushion.

[0012] In some embodiments, the fire sock further includes a first indicia located along the bottom panel adjacent the first movable portion of the body support cushion and a second indicia4TE104L:522US02:10011684:v2located along the bottom panel adjacent to the second movable portion of the body support cushion, such that the first indicia and the second indicia extend along the split of the body support cushion.

[0013] In some embodiments, the first cover includes a top panel, a bottom panel, and a side panel. The top panel covers the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion. The bottom panel is positioned opposite the top panel and covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion. The side panel extends between the top panel and the bottom panel around a periphery of the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, such that the top panel, bottom panel, and side panel collectively define a cavity for enclosing the body support cushion. The second cover has a top surface and a bottom surface and defines a perimeter. The second cover is positioned over and dimensionally- sized to cover at least the top panel and an upper portion of the side panel of the first cover. A fastener connects the second cover to the first cover along the perimeter of the second cover.

[0014] In some embodiments, the side panel of the first cover includes a left side panel, a right side panel, a foot side panel, a left head side panel located on the first movable portion of the body support cushion, a right head side panel located on the second movable portion of the body support cushion, a left inner split side panel located on the first movable portion within the split of the body support cushion, and a right inner split side panel located on the second movable portion within the split of the body support cushion. The second cover extends a distance over the upper portion of the left side panel and the right side panel that is greater than a5TE104L:522US02:10011684:v2distance the second cover extends over the foot panel, the left head side panel, the right head side panel, the left inner split side panel, and the right inner split side panel.

[0015] In some embodiments, the second cover does not extend downward within the split of the body support cushion.

[0016] In some embodiments, the fastener comprises one or more zippers extending around the perimeter of the second cover. In some particular embodiments, the fastener is a two-way separating zipper.

[0017] Further features and advantages of the present invention will become evident to those of ordinary skill in the art after a study of the description, figures, and non-limiting examples in this document.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. l is a perspective view of an exemplary body support cushion assembly made in accordance with the present invention;

[0019] FIG. 2 is an exploded perspective view of the exemplary body support cushion assembly of FIG. 1 showing the body support cushion, fire sock, first cover, and second cover;

[0020] FIG. 3 is a perspective view of the exemplary mattress shown in FIG. 2;

[0021] FIG. 4 is a perspective view of another exemplary mattress made in accordance with the present invention;

[0022] FIG. 5 is a perspective view of yet another exemplary mattress made in accordance with the present invention;

[0023] FIG. 6 is a perspective view of the mattress of FIG. 5 with upper foam layers removed to show an intermediate innerspring layer;6TE104L:522US02:10011684:v2

[0024] FIG. 7 is a bottom view of the mattress of FIG. 5 during an intermediate step of manufacturing before the split and keyhole are formed;

[0025] FIG. 8 is a bottom view of the mattress of FIG. 7 after the split and keyhole are formed;

[0026] FIG. 9 is a perspective view of the exemplary fire sock shown in FIG. 2 surrounding the exemplary mattress shown in FIG. 2;

[0027] FIG. 10 is a bottom view of the fire sock of FIG. 9;

[0028] FIG. 11 is a bottom perspective detailed view of the split of the mattress and the split of fire sock of FIG. 9;

[0029] FIG. 12 is a bottom perspective detailed view of the split of the mattress and the split of another exemplary fire sock;

[0030] FIG. 13 is a perspective view of the exemplary first cover shown in FIG. 2 surrounding the exemplary mattress and fire sock shown in FIG. 2;

[0031] FIG. 14 is a bottom view of the first cover of FIG. 13;

[0032] FIG. 15 is the bottom view of FIG. 14 with a zipper on the bottom of the first cover opened showing the mattress and fire sock;

[0033] FIG. 16 is a left side view of the first cover of FIG. 13;

[0034] FIG. 17 is a right side view of the first cover of FIG. 13;

[0035] FIG. 18 is a foot side view of the first cover of FIG. 13;

[0036] FIG. 19 is a head side view of the first cover of FIG. 13;

[0037] FIG. 20 is a perspective view of the exemplary second cover shown in FIG. 2 shown in isolation;

[0038] FIG. 21 is a foot side view of the second cover of FIG. 20; and7TE104L:522US02:10011684:v2

[0039] FIG. 22 is a head side view of the second cover of FIG. 20.DESCRIPTION OF EXEMPLARY EMBODIMENTS

[0040] The present invention includes adjustable mattresses and cover assemblies for such mattresses. In particular, the present invention includes mattresses with independently moveable portions that are adjacent to one another and cover assemblies that are designed to provide for such movement.

[0041] Referring first to FIGS. 1-2, in one exemplary embodiment of the present invention, a body support cushion assembly made in accordance with the present invention includes a body support cushion 100 and a cover assembly 500. In this embodiment, the cover assembly 500 includes a fire sock 200, a first or lower cover 300, and a second or upper cover 400 connected to the first cover 300 by a fastener 470. Both the body support cushion 100 and the cover assembly 500 are configured to allow two occupants to independently adjust a portion of the body support cushion assembly.

[0042] Referring still to FIGS. 1-2, but now also to FIG. 3, in the exemplary body support cushion assembly, the body support cushion 100 includes a stationary portion 150, a first (left) movable portion 152 extending from the stationary portion 150, and a second (right) movable portion 154 extendable from the stationary portion 150 adjacent and parallel to the first movable portion 152. As shown in FIG. 1, the first moveable portion 152 can tilt upward to allow a first occupant different resting positions. Although not shown, the second moveable portion 154 can likewise tilt upward. To this end, a split 160 is defined between the first movable portion 152 and the second moveable portion 154, and a keyhole 162 is then defined at a terminal end of the split 160, as described in further detail below.8TE104L:522US02:10011684:v2

[0043] The body support cushion 100 has an upper surface 110, a lower surface 120 opposite the upper surface 110, and a sidewall 130 that extends between the upper surface 110 and the lower surface 120. The sidewall 130 can also be characterized as having a left sidewall 132, a right sidewall 134, a foot sidewall 136, a left head sidewall 138a located on the first movable portion 152, a right head sidewall 138b located on the second movable portion 154, a left inner split sidewall 140a located on the first movable portion 152, and a right inner split sidewall 140b located on the second movable portion 154. The split 160 of the support cushion 100 is defined between the left inner split sidewall 140a and the right inner split sidewall 140b and extends through the entire thickness of the body support cushion 100, i.e., from upper surface 110 to the lower surface 120. The keyhole 162 likewise extends through the entire thickness of the body support cushion 100 and is in fluid communication with the split 160.

[0044] With further regard to the body support cushion 100, the exemplary body support cushion 100 is in the form of a mattress. As discussed further below, the mattress 100 may be formed of foam, gels, springs (e g., inner spring mattress and / or pocketed spring mattresses), or a combinations of these, among other materials. Further, the mattress 100 can be adapted to be supported on a base or foundation (not shown) which is adjustable to move the mattress 100 the first moveable portion 152 and the second moveable portion 154 between a flat position and an upright position.

[0045] To increase the comfort of a user, in some embodiments, the mattress 100 can also or alternatively include one or more foam layers. In the foam form, the mattress 100 may differ in firmness and comfort feel by adjusting the number, thickness and composition of the constituent foam layers. Multi-layer foam mattresses, also referred to herein as laminate mattresses, of the prior art are designed to provide adequate support, without the use of wire springs, and pressure-9TE104L:522US02:10011684:v2relieving conformity, particularly in the top layer. Typically, the first or top foam layer that is in contact with the user may be made of visco-elastic foam, i.e., foam which is both viscous in order to conform under pressure, and elastic in order to return to its uncompressed state. Viscoelastic foam is sensitive to body heat such that the material conforms to the user's body, providing a more comfortable sleep surface. Multiple layer foam mattresses come in a variety of forms as the type of material, the thickness of each layer and the density of each layer can be varied to provide a mattress with different support characteristics.

[0046] Foams have numerous characteristics, including density and firmness, which contribute to the “feel” of the mattress. Density refers to the weight per unit volume amount of gas-containing cells within a foam matrix. Firmness refers to the rigidity or spring rate of the foam. Therefore, by varying the density and firmness of a foam, one may provide a mattress having a different “feel.” Further, by combining layers of different types of foams, a multitude of different mattresses possessing a broad spectrum of “feel” may be produced.

[0047] Solid foams, included closed cell and open cell (reticulated) structures, provide lightweight cellular engineering materials for weight bearing and distribution (pressure distribution) and energy absorption. In general, open-cell-structured foams have pores that are interconnected in a network. The interstitial spaces of open-cell foams can be filled with gas, liquid, or solid material. The density of foam is determined in part by both the amount of structural material which forms the cells, such as polyurethane, polyethylene or latex, and the volume or size of the cells.

[0048] Closed-cell foams generally do not have interconnected pores, generally have relatively higher compressive strength due to the closed cell bubble structures, and are relatively denser. The closed-cell structure foams have higher dimensional stability, low moisture10TE104L:522US02:10011684:v2absorption coefficients, and higher strength compared to open-cell-structured foams. The closed cells can be filled with gases to provide improved insulation, or with other materials to alter the physical properties of the foam. All types of foam have been widely used as core material in sandwich structure composite materials.

[0049] Many of the foregoing foams and / or foam laminates are formed with the use of glue or adhesive or join the layers of foam individually or together in any of various combinations to form the cushion or mattress or subassemblies thereof.

[0050] The mattress 100, as indicated above, can also include springs either alone or in combination with foams or foams and gels. The coil arrangements may include coil innersprings, pocketed coils, either of which may include coil-in-coil arrangements, or combinations of foam and spring assemblies. The springs may have a linear response or a non-linear response. Spring assemblies that make use of pocket coil springs, which are also known as wrapped coils, encased coils, encased springs, or Marshall coils, are generally recognized as providing a unique feel to a mattress when used as a part of a spring assembly because each discrete coil is capable of moving independently to support the body of a user, or a portion thereof, resting on the mattress. In particular, in pocket coil spring assemblies, each coil is wrapped in a fabric pocket and moves substantially independently of the other coils in the pocket coil spring assembly to thereby provide individualized comfort and contouring to the body of a user. Moreover, as a result of moving substantially independently from one another, the pocket coils also do not directly transfer motion from one pocket coil to another, such that the movement of one user resting on a mattress assembly using pocket coils will not disturb another user resting on the mattress assembly. In this regard, mattress assemblies constructed with pocket coil springs are generally recognized as providing a soft and luxurious feel, and may be more desirable than a traditional11TE104L:522US02:10011684:v2inner spring mattress. The coils or pocketed coils may define a two dimensional array and may comprise various diameters, pitches, or other characteristics which may be used to vary the firmness of the cushion.

[0051] Referring still to FIGS. 2-3, the exemplary mattress 100 includes a plurality of foam layers 172, 174, 176, 178. The first foam layer 172, also referred to as a lowermost, or base layer, is formed of a convoluted foam, or egg crate foam, and provides a foundation for the remainder of the foam layers. The second foam layer 174 is positioned on top of the first foam layer 172 and affixed by one of the means described above. Likewise, the third foam layer 176 is positioned on top of the second foam layer 174 and affixed by one of the means described above. Finally, the four foam layer 178, also referred to as an uppermost, or body supporting layer, is positioned on top of the third foam layer 176 and affixed by one of the means described above.

[0052] Although not expressly shown, the split 160 and keyhole 162 are defined through each of the foam layers 172, 174, 176, 178 so as to extend the entire thickness of the mattress 100, i.e., from the upper surface 110 to the lower surface 120, which allows the first movable portion 152 and the second movable portion 154 to move independently. In the exemplary mattress 100, the split 160 is about 2 cm wide while the keyhole 162 has a diameter of about 3.5 cm. Including the enlarged keyhole 162 at the end of the split 160 distributes stresses introduced during articulation of the two moveable portions 152, 154 and therefore prevents ripping or tearing after extended use. These dimensions, however, are merely exemplary and may be modified without departing from the spirit and scope of the present invention.

[0053] By adjusting one or more of the foam layers, the support characteristics of the mattress of the present invention can be modified, for example to provide a softer or firmer feel.In some embodiments, the overall support characteristics of the mattress can be modified by12TE104L:522US02:10011684:v2adjusting the composition of one or more foam layers. However, the overall support characteristics of the mattress can also be modified by adjusting the physical dimensions (e.g., thickness) of one or more foam layers.

[0054] Referring now to FIG. 4, another exemplary mattress 1100 made in accordance with the present invention likewise includes a plurality of foam layers 1172, 1174, 1176, 1178 with a split 1160 and keyhole 1162 defined through the entire thickness of the mattress 1100, but the thicknesses of one or more of the plurality of foam layers 1172, 1174, 1176, 1178 are changed in order to provide the mattress 1100 with a different support as compared to the mattress 100 shown in FIG. 3. In particular, each of the plurality of foam layers 1172, 1174, 1176, 1178 of the mattress 1100 shown in FIG. 4 are made of the same composition as the respective foam layers 172, 174, 176, 178 of the mattress 100 shown in FIG. 3, but the first foam layer 1172 of the mattress 1100 shown in FIG. 4 is thinner than the first foam layer 172 of the mattress 100 shown in FIG. 3, the second foam layer 1174 of the mattress 1100 shown in FIG. 4 is thicker than the second foam layer 174 of the mattress shown in FIG. 3, the third foam layer 1176 of the mattress 1100 shown in FIG. 4 is thicker than the third foam layer 176 of the mattress shown in FIG. 3, and the fourth foam layer 1178 of the mattress 1100 shown in FIG. 4 is thinner than the fourth foam layer 178 of the mattress shown in FIG. 3. It is contemplated that by adjusting the thicknesses in this manner, the mattress 1100 shown in FIG. 4 is softer than the mattress 100 shown in FIG. 3.

[0055] Of course, a person of skill in the art would readily understand how to modify the composition, the physical dimension, or both the composition and physical dimensions of one or more foam layers to provide a mattress with an intended support characteristic. In all instances,13TE104L:522US02:10011684:v2however, a mattress made in accordance with the present invention includes a split and keyhole defined through the entire thickness of the mattress.

[0056] As previously mentioned, in some embodiments the mattress of the present invention may include springs in combination with foams. Referring now to FIGS. 5-6, in one exemplary embodiment, another exemplary mattress 2100 made in accordance with the present invention includes a plurality of foam layers 2172, 2174, 2176, 2178 but additionally includes an innerspring layer 2180. The innerspring layer 2180 is positioned between the first foam layer 2172 and the second foam layer 2174. To this end, the first foam layer 2172 can, in this embodiment, be considered a base layer 2172 of the innerspring layer 2180. As shown in FIG. 6, the innerspring layer 2180 includes a plurality of foam rails 2182, 2184, 2186, 2188 which collectively define cavities 2190 within which an array of springs 2192 are positioned. In particular, two foot rails 2182, two side rails 2184, and two head rails 2186, which collectively are characterized as exterior foam rails, are positioned around a perimeter of the base layer 2172. An intermediate foam rail 2188 extends across a length of the mattress 2100 such that the exterior foam rails 2182, 2184, 2186 and the intermediate foam rail 2188 define the two cavities 2190.

[0057] The exemplary springs 2192 are individually “pocketed” coils. Each individually pocketed coil may comprise a spring or coil wrapped or encased within a fabric cover. This cover may be known in the art as a spacer fabric, and may be permeable. In some instances, the spacer fabric comprising the cover may be formed of a bi-directionally stretched material, meaning it is stretchable in two dimensions, such as the horizontal directions, for example head to toe and laterally, side to side relative a bed. The spacer fabric may include a woven, or knit material, and / or may include extruded plastic materials including polyethylene, polyester, other14TE104L:522US02:10011684:v2plastics or combinations of any of these or others. These individually pocketed coils may then be arranged in rows or columns within a perimeter and sewn together to form a cohesive unit. In some embodiments, the rows and columns are aligned such that each row forms a straight line and each column forms a straight line. In other embodiments, the rows and columns are arranged so as to be offset from each other, for example forming a checkerboard-like pattern. The use of pocketed coils or a pocketed coil layer may provide for a more comfortable mattress surface as the coils become relatively individually flexible, so that each coil may flex separately without affecting the neighboring coils.

[0058] In some embodiments, the springs or coils may be constructed of a steel wire, high carbon spring wire, high carbon piano wire, cooper coated high carbon wire, aluminum coated high carbon wire, cold drawn upholstery wire types “A”, “B”, or “C”, or any other types of wire known in the art. The wire used in the construction of the springs or coils may range between 12 and 20 gauge. In other embodiments, the springs or coils may be constructed of a polymer material, for example plastic or polyurethane. In some embodiments, the springs or coils may range in diameter from about 10 millimeters to about 150 millimeters. The raw height of the springs or coils may range from about 0.5 inches to about 12 inches, and the height or the spring or coil in the pocket may also range from about 0.5 inches to about 12 inches. In some embodiments, the spring or coil preload ranges from 0 to 5 pounds of force, and spring rate ranges from 0.25 to 5.0 pounds of force per inch. In some embodiments, the coil geometry may be linear compression; while in other embodiments the coil geometry may be variable compression, linear cylindrical, or variable diameter in order to achieve variable compression.

[0059] Similar to the mattresses 100, 1100 described above, the exemplary mattress 2100 defines a split 2160 and keyhole 2162 through the entire thickness of the mattress 2100. In15TE104L:522US02:10011684:v2particular, and as shown in FIG. 6, the split 2160 and keyhole 2162 are defined through the intermediate foam rail 2188 of the innerspring layer 2180. However, because the base layer 2172 is relatively thin compared to the other foam layers, it is contemplated that addition measures may be required to prevent ripping of the base layer 2172 in particular. To this end, and referring now additionally to FIGS. 7-8, the exemplary mattress 2100 further includes a reinforcing patch 2173 affixed to the base layer 2172 such that the keyhole 2162 and a portion of the split 2160 extend through the reinforcing patch 2173.

[0060] In particular, when constructing the mattress 2100, the various layers 2172, 2174, 2176, 2178, 2180 are first stacked and connected without having the split 2160 and keyhole 2162 formed through the layers 2172, 2174, 2176, 2178, 2180. Before or after this step, the reinforcing patch 2173 is affixed to the base layer 2172, as shown in FIG. 7. After the reinforcing patch 2173 is affixed to the base layer 2172, the split 2160 and keyhole 2162 are formed so as to extend through the entire mattress 2100, including the reinforcing patch 2173, as shown in FIG. 8. In one exemplary implementation, a CNC machine is used to cut through the mattress 2100 to form the split 2160 and keyhole 2162, but other means of forming the split 2160 and keyhole 2162 are possible without departing from the spirit and scope of the present invention.

[0061] In the exemplary mattress 2100, the reinforcing patch 2173 is made of fabric and affixed to the base layer 2172 with an adhesive, but other materials and means of affixing the reinforcing patch 2173 are possible without departing from the spirit and scope of the present invention. Furthermore, the exemplary reinforcing patch 2173 is about 35 cm x 45 cm and positioned such that the keyhole 2162 is located about 7 cm away from the edge of the16TE104L:522US02:10011684:v2reinforcing patch 2173. However, these dimensions are merely exemplary and may be modified without departing from the spirit and scope of the present invention.

[0062] In the exemplary mattress 2100, the reinforcing patch 2173 is affixed to the base layer 2172 so as to be on the lowermost surface of the mattress 2100 (i.e., opposite from the innerspring layer 2180), but in other embodiments, a reinforcing patch can be affixed to the base layer 2172 on the upper side of the base layer 2172 (i.e., between the base layer 2172 and the innerspring layer 2180) in addition to, or instead of, the reinforcing patch 2173 on the lowermost surface of the mattress 2100. Furthermore, although the reinforcing patch 2173 is shown only in use with the mattress 2100 including the innerspring layer 2180, it is contemplated that reinforcing patches can be use with any mattresses made in accordance with the present invention.

[0063] Although the cavities 2190 of the exemplary mattress 2100 shown in FIGS. 5-6 include an array of springs 2192, in other embodiments, other support inserts may be provided within the cavities, including, but not limited to, flexible foam instead of or in addition to an array of springs. In some exemplary embodiments, a foam support insert is comprised of a viscoelastic foam similar to a body supporting layer described herein. The flexible foam material can be chosen to provide a preferred feel and support characteristic. For example, in some embodiments, a foam support insert can provide substantially the same feel and support as the foam rails whereas in some other embodiments, a foam support insert can provide a softer feel than the foam rails. Furthermore, a foam insert can be configured to provide substantially the same feel and support as the body supporting layer. It is additionally contemplated that a foam insert can include a plurality of foam layers each having various configurations including, for example, different densities, hardnesses, and / or porosities.17TE104L:522US02:10011684:v2

[0064] Turning now to the exemplary fire sock 200 of the present invention, fire retardant layers, such as fire socks, are designed to block heat, oxygen or both from reaching the underlying mattress. These barriers, may be in the form of woven or knit fabrics, or non-woven fiber pads. The barriers are typically made from a variety of well-known natural and synthetic fibers which are design to protect an underlying mattress by forming a char when burned. To this end, and referring once again to FIG. 2 but now also to FIGS. 9-11, the exemplary fire sock 200 is configured to completely enclose and protect the upper surface 110 and the sidewall 130 of the mattress 100, but as perhaps best shown in FIG. 10, the fire sock 200 defines an opening 270 through which the mattress 100 can be inserted, and when the fire sock 200 is on the mattress 100, the opening 270 is positioned along the lower surface 120 of the mattress 100. More specifically, as shown in FIGS. 2 and 9, the fire sock 200 includes an top panel 210 that is positioned adjacent to the upper surface 110 of the mattress 100, a bottom panel 220 that is positioned adjacent to the lower surface 120 of the mattress 100, and a side panel 230 that extends between the top panel 210 and the bottom panel 220.

[0065] The top panel 210 covers the entirety of the upper surface 110 of the mattress 100 include the stationary portion 150 of the mattress 100, the first movable portion 152 of the mattress 100, and the second movable portion 154 of the mattress 100. To this end, the top panel 210 of the fire sock 200 also defines a split 260 which allows the top panel 210 of the fire sock 200 to remain flat on the first movable portion 152 of the mattress 100, and the second movable portion 154 of the mattress 100 when the moveable portions 152, 154 actuate independently.

[0066] Likewise, the side panel 230 covers the entirety of the sidewall 130 of the mattress100. The side panel 230 of the fire sock 200 can also be characterized as having a left side panel232, a right side panel 234, a foot side panel 236, a left head side panel 238a located on the first18TE104L:522US02:10011684:v2movable portion 152 of the mattress 100, a right head side panel 238b located on the second movable portion 154 of the mattress, a left inner split side panel 240a located on the first movable portion 152 within the split 160 of the mattress 100, and a right inner split side panel 240b located on the second movable portion 154 within the split 160 of the mattress 100.

[0067] Referring now specifically to FIGS. 10-11, the bottom panel 220 is positioned along the lower surface 120 of the mattress 100 and, as previously mentioned, defines the opening 270 through which the mattress 100 is inserted. As shown, the bottom panel 220 covers a majority of the stationary portion 150 of the mattress 100, but only extends inwardly a relatively short distance away from the side panel 230 along the first moveable portion 152 and the second movable portion 154 such that the opening 270 of the fire sock 200 exposes the majority of the lower surface 120 of the mattress 100 at the two movable portions 152, 154. The shape and location of the opening 270 helps maintain the position of the fire sock 200 relative to the mattress 100 while allowing for easy positioning of the fire sock 200 over the movable portions 152, 154 and especially within the split 160 of the mattress 100.

[0068] To this end, the exemplary fire sock 200 includes several features which help facilitate its placement over the mattress 100. In particular, the exemplary fire sock 200 is provided with sections, or patches, of non-woven material on the interior of the fire sock 200 which contact the movable portions 152, 154 of the mattress. This non-woven material has less friction with the mattress 100 which facilitates slipping the fire sock 200 over the moveable portions 152, 154 of the mattress 100.

[0069] Furthermore, as shown in FIGS. 10-11, where the fire sock 200 extends between the split 160 (i.e., the left inner split side panel 240a and the right inner split side panel 240b) the portions of the bottom panel 220 positioned on each side of the split 160 of the mattress 100 each19TE104L:522US02:10011684:v2include one or more handles 250 are affixed to the bottom panel 220 adjacent to the split 160 of the mattress 100. In this embodiment, there are two handles 250 affixed to the bottom panel 220 adjacent to the split 160 and along the first movable portion 152 and another two handles 250 affixed to the bottom panel 220 adjacent to the split 160 and along the second movable portion 154. Two linear indicia 254a, 254b are also provided on the bottom panel 220 which visually show when the fire sock 200 is in the correct position. More specifically, a first indicia 254a is located along the bottom panel 220 adjacent the first movable portion 152 and a second indicia 254b located along the bottom panel 220 adjacent to the second movable portion 154, such that the first indicia 254a and the second indicia 254b extend substantially parallel along the split 160 of the mattress 100. In this way, the indicia 254a, 254b provide an easily recognizable visual indicator of when the fire sock 200 is appropriate positioned on the mattress 100 where the bottom panel 220 meets the side panel 230 adjacent to the split 160.

[0070] In use, when positioning the fire sock 200 over the mattress 100, the stationary portion 150 of the mattress 100 is first inserted through the opening 270 of the fire sock 200 and the fire sock 200 is pulled around the two movable portions 152, 154 of the mattress with the left inner split side panel 240a and the right inner split side panel 240b positioned within the split 160 of the mattress 100. The handles 250 are then used to pull the fire sock 200 until the left inner split side panel 240a and the right inner split side panel 240b extend fully through the split 160 and the bottom panel 220 is entirely located on the lower surface 120 of the mattress 100. To this end, along the edges of the bottom panel 220 with the handles 250, there are additional edge stiffeners 252 which the stabilize these edges and help prevent tearing or other damage to the bottom panel 220 which may otherwise be caused when using the handles 250 to pull the bottom panel 220 into place.20TE104L:522US02:10011684:v2

[0071] While the handles 250 shown in FIGS. 10-11 extend upward from the bottom panel 220, it is contemplated that the handles may be formed or provided in a variety of other configurations which still facilitate in pulling the fire sock into position. For example, and referring now to FIG. 12, L-shaped handles 1250 are provided at the comer of the bottom panel 1220 on either side of the split 160 with the handles 1250 sewn flat to the bottom panel 1220. All other features of the fire sock 1200 shown in FIG. 12 are substantially the same as the fire sock 200 shown in FIG. 11.

[0072] It should be understood that the fire sock is optional and in some embodiments of the present invention, a cover assembly for a mattress only includes a first cover and a second cover.

[0073] Turning now to the first cover 300 and the second cover 400, and referring once again to FIG. 2 but now also to FIGS. 13-22, the exemplary cover assembly 500 for the mattress 100 includes a first cover 300 having a top panel 310, a bottom panel 320, and a continuous side panel 330 which collectively define a cavity for enclosing the mattress 100.

[0074] The top panel 310 covers the entirety of the upper surface 110 of the mattress 100 include the stationary portion 150, the first movable portion 152, and the second movable portion 154 of the mattress 100. To this end, the top panel 310 also defines a split 360 which allows the top panel 310 of the first cover 300 to remain flat on the first movable portion 152 of the mattress 100, and the second movable portion 154 of the mattress 100 when the moveable portions 152, 154 actuate independently.

[0075] Likewise, the side panel 330 covers the entirety of the sidewall 130 of the mattress100. The side panel 330 of the cover 300 can also be characterized as having a left side panel332, a right side panel 334, a foot side panel 336, a left head side panel 338a located on the first movable portion 152 of the mattress 100, a right head side panel 338b located on the second21TE104L:522US02:10011684:v2movable portion 154 of the mattress 100, a left inner split side panel 340a located on the first movable portion 152 within the split 160 of the mattress 100, and a right inner split side panel 340b located on the second movable portion 154 within the split 160 of the mattress 100.

[0076] The bottom panel 320 also covers the entirety of the lower surface 120 of the mattress 100, but defines an opening 380 (shown in FIG. 15) through which the mattress 100 is inserted into the first cover 300 and which is selectively closed by a zipper 370 to secure the first cover 300 around the mattress 100. As shown in FIGS. 14-15, the zipper 370 extends along a portion of the perimeter of the bottom panel 320 from a first end 371 positioned adjacent to the left side panel 332 to a second end 379 positioned adjacent to the right side panel 334. The zipper 370 includes six substantially straight sections 372, 373, 374, 376, 377, 378 which follow the perimeter of the bottom panel 320 around the first movable portion 152 and the second movable portion 154 of the mattress 100. The zipper 370 further includes a curved portion 375 located at the end of the split 360 which helps direct the zipper transition smoothly between the two straight sections 374, 376 on either side of the split 360.

[0077] As shown in FIGS. 20-22, the second cover 400 includes a top surface 402 and a bottom surface 404, with the second cover 400 defining a perimeter 430 and a split 460 which allows the second cover 400 to remain flat on the first movable portion 152 of the mattress 100, and the second movable portion 154 of the mattress 100 when the moveable portions 152, 154 actuate independently. The second cover 400 of the cover assembly 500 is generally positioned over the top panel 310 of the first cover 300 and is dimensionally-sized to cover the top panel 310 as well as portions of the side panel 330 of the first cover 300. In particular, in the exemplary cover assembly 500, the second cover 400 is dimensionally-sized to cover the entirety of the top panel 310 of the first cover 300 as well as upper portions 333, 335, 337, 339a, 339b of22TE104L:522US02:10011684:v2the left side panel 332, the right side panel 334, the foot side panel 336, the left head side panel 338a, and the right head side panel 338b of the first cover 300 respectively, as described in further detail below. The second cover 400 is thus configured to cover and protect the portions of the underlying first cover 300 and, consequently, the portions of any mattress 100 underlying the first cover 300, that would be exposed to excessive wear and would be at an increased risk of becoming stained or damaged.

[0078] Referring now to FIGS. 1-2, 13, and 16-22, the cover assembly 500 further includes a fastener in the form of a two-way separating zipper 470 which extends along a perimeter 430 of the second cover 400 and that connects the second cover 400 to the first cover 300 along the perimeter 430 of the second cover 400, including within the split 360 of the first cover 300 and the split 460 of the second cover. The particular location of the zipper 470 along the first cover 300 and thus the corresponding shape of the second cover 400 is designed specifically to facilitate the connect and separate the second cover 400 from the first cover 300, as described below.

[0079] As shown in FIG. 16, the zipper 470 is positioned along the left side panel 332 closer to the bottom panel 320 than the top panel 310 such that the upper portion 333 of the left side panel 332 is greater than one half of the left side panel 332. Likewise, as shown in FIG. 17, the zipper 470 is positioned along the right side panel 334 closer to the bottom panel 320 than the top panel 310 such that the upper portion 335 of the right side panel 334 is greater than one half of the right side panel 334.

[0080] By comparison, as shown in FIG. 18, the zipper 470 is positioned along the foot side panel 336 closer to the top panel 310 than the bottom panel 320 such that the upper portion 337 of the foot side panel 336 is less than one half of the foot side panel 336. Likewise, as shown in23TE104L:522US02:10011684:v2FIG. 19, the zipper 470 is positioned along the left head side panel 338a and the right head side panel 338b closer to the top panel 310 than the bottom panel 320 such that the upper portions 339a, 339b of the left head side panel 338a and the right head side panel 338b are less than one half of the left head side panel 338a and the right head side panel 338b. Furthermore, the zipper 470 angles upwards along the left head side panel 338a and the right head side panel 338b towards the split 360 so that the zipper 470 is immediately adjacent to the top panel 310 along the split 360. The zipper 470 then extends along the left inner split side panel 340a and the right inner split side panel 340b immediately adjacent to the top panel 310.

[0081] As previously mentioned, and illustrated in FIGS. 20-22, the shape of the second cover 400 corresponds to the location of the zipper 470 along the first cover 300. Specifically, the portion 432 of the second cover 400 that extends downward along the left side panel 332 of the first cover 300 and the portion 434 of the second cover 400 that extends downward along the right side panel 334 of the first cover 300 are each larger than the portion 436 of the second cover 400 that extends downward along the foot side panel 336 of the first cover 300 and the portions 438a, 438b of the second cover 400 that extend downward along the head side panels 338a, 338b of the first cover 300. Furthermore, as perhaps best shown in FIG. 22, the portion 438a of the second cover 400 that extends downward along the left head side panel 338a of the first cover 300 and the portion 438b of the second cover 400 that extends downward along the right head side panel 338b of the first cover 300 angle upward along the these portions 438a, 438b such that the second cover 400 does not extends downward into the split 160 of the mattress 100. As such, the zipper 470 is immediately adjacent to the upper surface 110 of the mattress along the split 360 of the first cover 300 and the split 460 of the second cover.24TE104L:522US02:10011684:v2Advantageously, the zipper 470 is thereby accessible at all points along its path allowing for easy removal and reattachment of the second cover 400.

[0082] Further features and advantages of a two-cover system can be found, for example, in U.S. Patent No. 9,675,189, which is incorporated herein by reference.

[0083] One of ordinary skill in the art will recognize that additional embodiments or implementations are possible without departing from the teachings of the present invention or the scope of the claims which follow. This detailed description, and particularly the specific details of the exemplary embodiments and implementations disclosed herein, is given primarily for clarity of understanding, and no unnecessary limitations are to be understood therefrom, for modifications will become obvious to those skilled in the art upon reading this disclosure and may be made without departing from the spirit or scope of the claimed invention.25TE104L:522US02:10011684:v2

Claims

CLAIMSWhat is claimed is:

1. A body support cushion, comprising: an upper surface, a lower surface opposite the upper surface; a stationary portion; a first moveable portion extending from the stationary portion; a second movable portion extending from the stationary portion adjacent to the first movable portion; wherein a split is defined between the first moveable portion and the second movable portion, the split extending from the upper surface to the lower surface; and wherein a keyhole is defined at a terminal end of the split, the keyhole extending from the upper surface to the lower surface.

2. The body support cushion of claim 1, wherein the body support cushion includes a body supporting layer and one or more foam layers configured to support the body supporting layer.

3. The body support cushion of claim 2, wherein the body supporting layer is comprised of a visco-elastic foam.

4. The body support cushion of claim 1, wherein the body support cushion includes a body supporting layer and an innerspring layer positioned below the body supporting layer, the innerTE104L:522US02:10011684:v2 26spring layer including: a base layer, exterior foam rails positioned around a perimeter of the base layer, and an intermediate foam rail extending across a length of the support cushion such that the exterior foam rails and the intermediate foam rail define two cavities; wherein a support insert is provided within each of the two cavities.

5. The body support cushion of claim 4, wherein the split and keyhole extend through the intermediate foam rail of the innerspring layer.

6. The body support cushion of claim 4, the support insert includes an array of springs, the array of springs configured to support the body supporting layer.

7. The body support cushion of claim 4, further comprising a reinforcing patch affixed to the base plate, the keyhole and at least a portion of the split extending through the reinforcing patch.

8. The body support cushion of claim 7, wherein the reinforcing patch is comprised of a fabric and affixed to the base plate with an adhesive.

9. The body support cushion of claim 7, wherein the reinforcing patch is affixed to the base plate opposite the intermediate foam rail.TE104L:522US02:10011684:v2 2710. A fire sock for a body support cushion including a stationary portion, a first movable portion extending from the stationary portion, and a second movable portion extending from the stationary portion adjacent to the first movable portion such that a split is defined between the first moveable portion and the second movable portion, the fire sock comprising: a top panel covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, the top panel defining a split between the first movable portion and the second movable portion; a bottom panel positioned opposite the top panel with the body support cushion positioned between the top panel and the bottom panel, the bottom panel defining an opening through which the body support cushion is inserted to place the fire sock on the body support cushion; one or more handles affixed to the bottom panel adjacent to the split of the body support cushion and along the first movable portion of the body support cushion; and one or more handles affixed to the bottom panel adjacent to the split of the body support cushion and along the second movable portion of the body support cushion.

11. The fire sock of claim 10, further comprising a first indicia located along the bottom panel adjacent the first movable portion of the body support cushion and a second indicia located along the bottom panel adjacent to the second movable portion of the body support cushion, such that the first indicia and the second indicia extend along the split of the body support cushion.

12. The fire sock of claim 10, further comprising a side panel extending between the topTE104L:522US02:10011684:v2 28panel and the bottom panel, and indicia located along the cover where the bottom panel meets the side panel adjacent to the split.

13. The fire sock of claim 10, further comprising stiffeners connected to the bottom panel adjacent to the one or more handles.

14. A fire sock for a body support cushion, the body support cushion including a stationary portion, a first movable portion extending from the stationary portion, and a second movable portion extending from the stationary portion adjacent to the first movable portion such that a split is defined between the first moveable portion and the second movable portion, the fire sock comprising: a top panel covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, the top panel defining a split between the first movable portion and the second movable portion; a side panel extending down from the top panel along a side of the body support cushion, the side panel extending around a periphery of the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion; and one or more handles operably connected to the side panel and configured to pull the side panel through the split.

15. The fire sock of claim 14, further comprising a first indicia located along the coverTE104L:522US02:10011684:v2 29adjacent the first movable portion and a second indicia located along the cover adjacent to the second movable portion, such that when the side panel is pulled through the split, the first indicia and the second indicia extend along the split.

16. A body support cushion assembly comprising: body support cushion including an upper surface, a lower surface opposite the upper surface; a stationary portion; a first moveable portion extending from the stationary portion; a second movable portion extending from the stationary portion adjacent to the first movable portion; wherein a split is defined between the first moveable portion and the second movable portion, the split extending from the upper surface to the lower surface; and a fire sock including: a top panel covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, the top panel defining a split between the first movable portion and the second movable portion; a bottom panel positioned opposite the top panel with the body support cushion positioned between the top panel and the bottom panel, the bottom panel defining an opening through which the body support cushion is inserted to place the fire sock on the body support cushion; a first indicia located along the bottom panel adjacent the first movable portion ofTE104L:522US02:10011684:v2 30the body support cushion; and a second indicia located along the bottom panel adjacent to the second movable portion of the body support cushion, such that the first indicia and the second indicia extend along the split of the body support cushion.

17. The body support cushion assembly of claim 16, further comprising: one or more handles affixed to the bottom panel adjacent to the split of the body support cushion and along the first movable portion of the body support cushion; and one or more handles affixed to the bottom panel adjacent to the split of the body support cushion and along the second movable portion of the body support cushion.

18. A cover assembly for a body support cushion including a stationary portion, a first movable portion extending from the stationary portion, and a second movable portion extending from the stationary portion adjacent to the first movable portion such that a split is defined between the first moveable portion and the second movable portion, the cover assembly comprising: a first cover having a top panel covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, a bottom panel positioned opposite the top panel and covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, and a side panel extending between the top panel and the bottom panel around a periphery of the stationary portion of the body support cushion, the first movable portion of the body support cushion, andTE104L:522US02:10011684:v2 31the second moveable portion of the body support cushion, such that the top panel, bottom panel, and side panel collectively define a cavity for enclosing the body support cushion; a second cover having a top surface and a bottom surface, the second cover defining a perimeter, and the second cover positioned over and dimensionally-sized to cover at least the top panel and an upper portion of the side panel of the first cover; and a fastener connecting the second cover to the first cover along the perimeter of the second cover.

19. The cover assembly of claim 18, wherein the side panel of the first cover includes a left side panel, a right side panel, a foot side panel, a left head side panel located on the first movable portion of the body support cushion, a right head side panel located on the second movable portion of the body support cushion, a left inner split side panel located on the first movable portion within the split of the body support cushion, and a right inner split side panel located on the second movable portion within the split of the body support cushion; and wherein the second cover extends a distance over the upper portion of the left side panel and the right side panel that is greater than a distance the second cover extends over the foot panel, the left head side panel, the right head side panel, the left inner split side panel, and the right inner split side panel.

20. The cover assembly of claim 19, wherein the second panel does not extend downward within the split of the body support cushion.

21. The cover assembly of claim 19, wherein the fastener comprises one or more zippersTE104L:522US02:10011684:v2 32extending around the perimeter of the second cover.

22. The cover assembly of claim 19, wherein the fastener is a two-way separating zipper.

23. The cover assembly of claim 19, further comprising a fire sock positioned between the body support cushion and the first cover, the fire sock including: a top panel covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, the top panel defining a split between the first movable portion and the second movable portion; a bottom panel positioned opposite the top panel with the body support cushion positioned between the top panel and the bottom panel, the bottom panel defining an opening through which the body support cushion is inserted to place the fire sock on the body support cushion; one or more handles affixed to the bottom panel adjacent to the split of the body support cushion and along the first movable portion of the body support cushion; one or more handles affixed to the bottom panel adjacent to the split of the body support cushion and along the second movable portion of the body support cushion; a first indicia located along the bottom panel adjacent the first movable portion of the body support cushion; and a second indicia located along the bottom panel adjacent to the second movable portion of the body support cushion, such that the first indicia and the second indicia extend along the split of the body support cushion.TE104L:522US02:10011684:v2 3324. A body support cushion assembly comprising: body support cushion including an upper surface, a lower surface opposite the upper surface; a stationary portion; a first moveable portion extending from the stationary portion; a second movable portion extending from the stationary portion adjacent to the first movable portion; wherein a split is defined between the first moveable portion and the second movable portion, the split extending from the upper surface to the lower surface; a fire sock including: a top panel covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, the top panel defining a split between the first movable portion and the second movable portion; a bottom panel positioned opposite the top panel with the body support cushion positioned between the top panel and the bottom panel, the bottom panel defining an opening through which the body support cushion is inserted to place the fire sock on the body support cushion; a first indicia located along the bottom panel adjacent the first movable portion of the body support cushion; and a second indicia located along the bottom panel adjacent to the second movable portion of the body support cushion, such that the first indicia and the second indicia extendTE104L:522US02:10011684:v2 34along the split of the body support cushion; a first cover having a top panel covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, a bottom panel positioned opposite the top panel and covering the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, and a side panel extending between the top panel and the bottom panel around a periphery of the stationary portion of the body support cushion, the first movable portion of the body support cushion, and the second moveable portion of the body support cushion, such that the top panel, bottom panel, and side panel collectively define a cavity for enclosing the body support cushion; a second cover having a top surface and a bottom surface, the second cover defining a perimeter, and the second cover positioned over and dimensionally-sized to cover at least the top panel and an upper portion of the side panel of the first cover; and a fastener connecting the second cover to the first cover along the perimeter of the second cover.TE104L:522US02:10011684:v2 35

Images