Patent Description:
The present application relates generally to mobile device cases, and in particular, cases for protecting foldable mobile devices.

Cases for mobile electronic devices, such as mobile phones, tablets, and mobile computers, e.g., laptop computers, have been designed to provide at least some protection from impact events, such as when the device is dropped, hit, or otherwise struck. The vast majority of such cases have been designed for smartphones or tablets that retain their form factor at all times due to the relatively significant investment that consumers make in purchasing such devices as well as to the relatively higher exposure to impacts and potential damage inherent in the design of such devices.

Recently, however, mobile electronic devices such as the SAMSUNG GALAXY FOLD® and SAMSUNG GALAXY Z FLIP® smartphones by Samsung Electronics Co. , the RAZR® smartphone by Motorola Mobility LLC (a wholly owned subsidiary of Lenovo), and the SURFACE DUO™ by Microsoft Corporation having foldable display screens or multiple display screens that pivot relative to each other have been introduced. Such devices have the same inherent risks as their constant form factor counterparts, and thus developments have been made to create mobile device cases such as the GALAXY FOLD and GALAXY Z SYMMETRY SERIES® FLEX cases by Otter Products, LLC. Such cases utilize two separate pieces to cover opposing portions of the smartphones and thus require the user to keep the pieces together when not in use.

Cases with hinged connections for foldable phones have been considered, such as those in <CIT>. The protective enclosures described in the aforementioned patent include bellows and elongated, resilient hinge elements that are arranged to cover all or a portion of a hinge of a mobile device inserted into such enclosures. Such placements of the hinge elements of the protective enclosures prevent insertion of a mobile device when the enclosures are in closed positions. Moreover, such placements require either stretching of the hinge elements that can lead to cyclic fatigue of those elements or, as in the example of bellows, require additional material to create the accordion-like structure of the bellows. Furthermore, from <CIT> a tension spring assisted protective cover for a foldable handheld electronic device is known. Moreover, from <CIT> it is known to provide a multifunctional case for portable electronic device and from <CIT> it is known to provide a protective enclosure for encasing an electronic device.

Accordingly, still further improvements in foldable mobile device cases to enhance their utility and reduce material costs and waste are desirable.

A foldable case for removably receiving a separate and distinct mobile electronic device having a front device surface, a rear device surface opposite the front device surface, and a periphery extending between the front device surface and the rear device surface of the device according to the invention is defined by claim <NUM>. The case includes first and second cover members and opposing hinge members. The first and the second cover members include respective first and second rear walls, respective first and second peripheral rims, and respective first and second sidewalls extending between the respective rear walls and the respective peripheral rims. In this manner, the first and the second cover members define respective first and second recesses configured for receiving respective first and second portions of the device. Each of the opposing hinge members extends between adjacent locations at the respective peripheral rims of the first and the second cover members to hingedly connect the first and the second cover members.

In some arrangements, the device may be foldable. In some arrangements, the device may include circuitry and a foldable display screen covering the circuitry. In some other arrangements, the device may include circuitry and a plurality of display screens e.g., two display screens, that may be foldable relative to each other and in which each of the screens may cover the circuitry. In some arrangements, each of the first and the second cover members may cover a section of the foldable case in both a closed position of the case in which the first and the second peripheral rims confront each other and an open position of the case in which the first and the second peripheral rims face in the same direction.

In some arrangements, the first and the second cover members may be rotatable relative to each other to a closed position of the case in which the first and the second peripheral rims confront each other and to an open position of the case in which the first and the second peripheral rims face in the same direction. In some such arrangements, the first rear wall and the first sidewall together may form a first end surface of the first cover member and the second rear wall and the second sidewall together may form a second end surface of the second cover member. In some such arrangements, the first and the second end surfaces of the cover members and the opposing first and second hinge members together may define opposing side openings when the case is in the open position. In some such arrangements, each of the side openings may include a first aperture spaced from a respective one of the hinge members and a second aperture bounded by the respective one of the hinge members and extending from the respective one of the first apertures. In some such arrangements, the second aperture may be wider along a portion of the second aperture than the respective one of the first apertures.

In some arrangements, the first and the second peripheral rims may be in abutment when the foldable case is in the closed position. In some arrangements, the first and the second peripheral rims may lie in the same plane.

In some arrangements, the first and the second end surfaces may define a channel that may extend between the first and the second cover members when the case is in the open position. In some arrangements, the end surfaces of both of the first and the second cover members together with both of the opposing hinge members may define an end opening configured for receiving the device through the end opening when the case is in the closed position. In some such arrangements, the end opening may be configured for either one or both of inserting and removing the device through the end opening.

In some arrangements, the side openings may form ends of the channel.

In some arrangements, the first rear wall of the first cover member may include a lens opening that may be configured for alignment with and exposure of one or more camera lenses of the device. In some arrangements, the second rear wall of the second cover member may include a connector opening that may be configured for alignment with and exposure of an electrical power connector of the device.

In some arrangements, the mobile electronic device may include a first device member hingedly attached to a second device member such that the front and the rear device surfaces are formed by a combination of the first and the second device members. In some such arrangements, either one or both of i) the first rear wall may be configured such that a majority of the rear device surface of the mobile electronic device formed by the first device member is exposed by the first rear wall and ii) the second rear wall may be configured such that a majority of the rear device surface of the mobile electronic device formed by the second device member is exposed by the second rear wall.

In some arrangements, the foldable case may be foldable about a widthwise folding axis. In some other arrangements, the foldable case may be foldable about a lengthwise folding axis. In still other arrangements, the foldable case may be foldable about both widthwise and lengthwise folding axes.

In accordance with another aspect, a foldable case may be configured for removably receiving a separate and distinct mobile electronic device that may have a front device surface, a rear device surface opposite the front device surface, and a periphery extending between the front device surface and the rear device surface of the device. The case may include first and second shells, first and second cover portions, and opposing first and second hinge members. The first and the second shells may include respective first and second shell rear walls and respective first and second shell sidewalls extending from the respective shell rear walls. The first and the second cover portions may be flexible and may include respective first and second cover rear walls and respective first and second cover sidewalls extending from the respective cover rear walls. The first and the second shells may be combined with the first and the second cover portions, respectively, to form respective first and second cover members. The first and the second cover members may define respective first and second recesses that may be configured for receiving respective first and second portions of the device. The first hinge member of the opposing hinge members may extend between first and second adjacent locations of the first and the second cover members and the second hinge member of the opposing hinge members may extend between third and fourth adjacent locations of the first and the second cover members to hingedly connect the first and the second cover members. In this manner, a combination of the first and the second cover members and the opposing hinge members collectively may form an outer rim of the case. Each of the first, the second, the third, and the fourth locations may be on the outer rim of the case.

In some arrangements, the outer rim may define a bezel of the case.

In some arrangements, the first and the second shells may be made of polycarbonate (PC), and the first and the second cover portions may be made of a thermoplastic elastomer (TPE), which may be thermoplastic polyurethane (TPU). Other materials also may be used as set forth further herein.

In some arrangements, the first shell may be integral with the first cover portion to form the first cover member, the second shell may be integral with the second cover portion to form the second cover member, and each of the first and the second hinge members may be integral with the first and the second cover members to form a one-piece structure.

In some arrangements, each of the first and the second hinge members may be directly attached to the first and the second cover portions. In some other arrangements, each of the first and the second hinge members may be directly attached to the first and the second shells.

In some arrangements, the first and the second shells may be rigid.

In some arrangements, at least majorities of each of the first and the second cover portions may lie within respective first and second pockets formed by the first and the second shells, respectively.

In some arrangements, the first and the second cover portions may form respective first and second rear wall openings. The first and the second rear wall openings may expose respective first and second inner surfaces of the first and the second shell rear walls, respectively.

In some arrangements, at least majorities of each of the first and the second shells may lie within respective first and second pockets formed by the first and the second cover portions, respectively.

In some arrangements, each of the first and the second shell sidewalls may extend to respective first and second shell peripheral rims, and each of the first and the second cover sidewalls may extend to respective first and second cover peripheral rims that extend beyond and overlie the first and the second shell peripheral rims, respectively. In some other arrangements, each of the first and the second cover sidewalls may extend to respective ones of the first and the second cover peripheral rims, and each of the first and the second shell sidewalls may extend to respective ones of the first and the second shell peripheral rims that extend beyond and overlie the first and the second cover peripheral rims, respectively.

In some arrangements, opposing corners of each of the first and the second shells may include cutouts, and respective flange portions of the first and the second cover portions may extend through the cutouts.

In some arrangements, the first shell rear wall, the first cover rear wall, the first shell sidewall, and the first cover sidewall together may form a first end surface of the first cover member, and the second shell rear wall, the second cover rear wall, the second shell sidewall, and the second cover sidewall together may form a second end surface of the second cover member. In some such arrangements, the first cover portion may extend along an entirety of the length of the first end surface, and the second cover portion may extend along an entirety of the length of the second end surface.

In some arrangements, the first and the second cover members may be rotatable relative to each other to a closed position of the case in which a first section of the outer rim formed by the first cover member may confront a second section of the outer rim formed by the second cover member and to an open position of the case in which the first section of the outer rim and the second section of the outer rim may face in the same direction. In some such arrangements, the first shell rear wall, the first cover rear wall, the first shell sidewall, and the first cover sidewall together may form a first end surface of the first cover member, and the second shell rear wall, the second cover rear wall, the second shell sidewall, and the second cover sidewall together may form a second end surface of the second cover member. In some such arrangements, the first and the second end surfaces and the opposing first and second hinge members together may define a channel when the case in the open position.

In some arrangements, the first and the second cover members may be rotatable relative to each other to a closed position of the case in which a first section of the outer rim formed by the first cover member may confront a second section of the outer rim formed by the second cover member and to an open position of the case in which the first section of the outer rim and the second section of the outer rim may face in the same direction. In some such arrangements, the first shell rear wall, the first cover rear wall, the first shell sidewall, and the first cover sidewall together may form a first end surface of the first cover member, and the second shell rear wall, the second cover rear wall, the second shell sidewall, and the second cover sidewall together may form a second end surface of the second cover member. In some such arrangements, the first and the second end surfaces of the cover members and the opposing first and second hinge members together may define opposing side openings when the case is in the open position. In some such arrangements, each of the side openings may include a first aperture spaced from a respective one of the hinge members and a second aperture bounded by the respective one of the hinge members and extending from the respective one of the first apertures. In some such arrangements, the second aperture may be wider along a portion of the second aperture than the respective one of the first apertures.

In some arrangements, the mobile electronic device may include a first device member hingedly attached to a second device member such that the front and the rear device surfaces are formed by a combination of the first and the second device members. In some such arrangements, either one or both of i) the first shell rear wall may be configured such that a majority of the rear device surface of the mobile electronic device formed by the first device member is exposed by the first shell rear wall and ii) the second shell rear wall may be configured such that a majority of the rear device surface of the mobile electronic device formed by the second device member is exposed by the second shell rear wall.

In accordance with another aspect, a foldable case may be configured for removably receiving a separate and distinct mobile electronic device having a front device surface, a rear device surface opposite the front device surface, and a periphery extending between the front device surface and the rear device surface of the device. The case may include a first and second outer shells and an inner shell. The first and the second outer shells may be rigid and may include respective first and second outer rear walls, respective first and second outer peripheral rims, and respective first and second outer sidewalls extending between the respective outer rear walls and the respective outer peripheral rims. The inner shell may include a pair of struts. The inner shell may include first and second inner shell portions that each may be flexible and that each may be integrally connected to each of the pair of struts to form a one-piece structure. The first and the second inner shell portions may include respective first and second inner rear walls, respective first and second inner peripheral rims, and respective first and second inner sidewalls extending between the respective inner rear walls and the respective inner peripheral rims to form respective first and second recesses that each may be configured for receiving respective first and second portions of the device. The first and the second inner peripheral rims may extend beyond and overlie the first and the second outer peripheral rims, respectively. The first and the second inner shell portions may be integral with and may cover the first and the second outer shells, respectively, to form first and second cover members. Each of the struts may be flexible such that the first and the second cover members may be hingedly connected.

In some arrangements, the pair of struts and the first and the second inner shell portions may be integral such that they are inseparable without fracture of any one or any combination of the struts and the inner shell portions.

In some arrangements, the inner peripheral rims may be integral with and aligned with each of the struts to define an outer rim of the case.

In some arrangements, the inner shell may be co-molded onto the first and the second outer shells.

In some arrangements, the mobile electronic device may include a first device member hingedly attached to a second device member such that the front and the rear device surfaces are formed by a combination of the first and the second device members. In some such arrangements, either one or both of i) the first outer rear wall may be configured such that a majority of the rear device surface of the mobile electronic device formed by the first device member is exposed by the first outer rear wall and ii) the second outer rear wall may be configured such that a majority of the rear device surface of the mobile electronic device formed by the second device member is exposed by the second outer rear wall.

A more complete appreciation of the subject matter of the present invention and various advantages thereof may be realized by reference to the following detailed description and the accompanying drawings, in which:.

It is to be understood that the figures and descriptions of the present invention have been simplified to illustrate elements that are relevant for a clear understanding of the present invention, while eliminating, for purposes of clarity, many other elements which are conventional in this art. Those of ordinary skill in the art will recognize that other elements are desirable for implementing the present invention. However, because such elements are well known in the art, and because they do not facilitate a better understanding of the present invention, a discussion of such elements is not provided herein.

As used herein, "mobile device" refers to a mobile phone device, an electronic tablet device, a laptop computer, or other mobile computing system and like.

Referring now to the example of <FIG>, foldable case <NUM> is configured for removably receiving a separate and distinct mobile device. In some arrangements, the mobile device includes a front device surface, a rear device surface opposite the front device surface, and sides extending between the front device surface and the rear device surface and forming a periphery of the device. The foldable case includes a first cover member and a second cover member attached to the first cover member by opposing hinge members 10A, 10B. The first cover member includes rigid first outer shell 2A and flexible first inner shell portion 2B received within a first pocket defined by the rigid outer shell. The second cover member similarly includes rigid second outer shell 3A and flexible inner shell portion 3B received within a second pocket defined by the rigid second outer shell. As illustrated by contrasting <FIG> with <FIG>, the first cover member and the second cover member are rotatable about a folding axis, in the example shown a widthwise folding axis, defined by hinge members 10A, 10B by way of the flexibility of the hinge members.

First outer shell 2A includes first outer rear wall 4A, first outer peripheral rim 6B, first outer sidewall 8A extending between the first outer rear wall and the first outer peripheral rim. In the example shown, first outer shell 2A further includes instrument cluster opening <NUM>, which may be a lens or other sensor device opening, configured for alignment with and exposure of one or more instruments of the mobile device, such as but not limited to one or more camera lenses, one or more camera flashes or other illumination elements, one or more rear-facing microphones, and one or more Light Detection and Ranging (LIDAR) or other navigational or environmental detection sensors. Second outer shell 3A is separate from first outer shell 2A and includes second outer rear wall 5A, second outer peripheral rim 7B, second outer sidewall 9A extending between the second outer rear wall and the second outer peripheral rim.

First inner shell portion 2B includes first inner rear wall 4B, first inner peripheral rim 6A, and first inner sidewall 8B extending between the first inner rear wall and the first inner peripheral rim to form a first recess configured for receiving and retaining one part, e.g., a display screen side, of a mobile device. Second inner shell portion 3B includes second inner rear wall 5B, second inner peripheral rim 7A, and second inner sidewall 9B extending between the second inner rear wall and the second inner peripheral rim to form a second recess configured for receiving and retaining another part, e.g., a further display screen side or a keyboard or other entry button side, of a mobile device. As shown, first and second inner peripheral rims 6A, 7A extend beyond and overlie first and second outer peripheral rims 6B, 7B, respectively. In the example shown, first and second inner shell portions 2B, 3B are integral with and cover portions of first and second outer shells 2A, 3A, respectively, to form the first and the second cover members, although in other arrangements, the first and the second inner shell portions may be removable from the respective outer shells. As further shown in this example, first and second inner rear walls 4B, 5B may include respective rear wall openings 22A, 22B that expose respective first and second inner surfaces of first and second outer rear walls 4A, 5A, respectively. Although rear wall openings 22A, 22B may be excluded such that the first and second inner rear walls 4B, 5B completely or at least substantially cover first and second outer rear walls 4A, 5A, respectively, use of the rear wall openings avoids having the first and second inner rear walls from obscuring a view to an inserted mobile device when transparent or translucent outer rear walls are employed. Use of rear wall openings 22A, 22B also may provide an air gap between portions of an inserted mobile device and foldable case <NUM> to provide additional impact protection to the mobile device.

In the example shown, first inner shell portion 2B is indirectly attached to the second inner shell portion 3B via flexible struts 10A, 10B acting as opposing hinge members. As in this example, first and second inner shell portions 2B, 3B and opposing hinge members 10A, 10B may be integral with each other to form a single inner shell <NUM>. In such arrangements, first and second inner shell portions 2B, 3B and opposing hinge members 10A, 10B are inseparable without fracture of any one or any combination of the inner shell portions and the hinge members. A top portion of inner shell <NUM> defined by a combination of first and second inner peripheral rims 6A, 7A and hinge members 10A, 10B directly attached to the inner peripheral rims forms a flexible outer rim that provides impact protection as well as a frictional surface to prevent accidental sliding of foldable case <NUM> and an inserted mobile device.

As best shown in <FIG> and <FIG>, first inner shell portion 2B of inner shell <NUM> is contoured to form button cover <NUM> configured for covering a toggle switch, e.g. for volume control of a mobile device. In other arrangements, additional or different button covers may be employed, such as one configured for covering a power button of a mobile device. As shown in <FIG> and <FIG>, second inner shell portion 3B in combination with second outer shell 3A forms connector opening <NUM> configured for alignment with and exposure of an electrical power connector of the device. First and second outer shells 2A, 3A and first and second inner shell portions 2B, 3B are configured with additional ports and openings <NUM>-<NUM>, as shown, adapted for receipt of auxiliary devices or other hardware, e.g., jacks for headphone connections. As best shown in <FIG> and <FIG>, opposing corners of each of first and second outer shells 2A, 3A include cutouts <NUM> and opposing corners of each of first and second inner shell portions 2B, 3B include flange portions <NUM> that extend through respective ones of the cutouts in the manner shown and described in <CIT>, the entirety of the disclosure of which is hereby incorporated by reference herein.

As best shown in <FIG> and <FIG>, first outer rear wall 4A, first inner rear wall 4B, first outer sidewall 8A, and first inner sidewall 8B together form first end surface <NUM> of the first cover member and second outer rear wall 5A, second inner rear wall 5B, second outer sidewall 9A, and second inner sidewall 9B together form second end surface <NUM> of the second cover member. First and second end surfaces <NUM>, <NUM> define channel <NUM> extending between the first and the second cover members when the case is in the open position. Spacing between first end surface <NUM> and second end surface <NUM> defining channel <NUM> allows the first and second cover members to be opened relative to each other beyond a <NUM> degree angle defined by planes passing through and defined by the first and second cover members and thereby allows for easier removal of an inserted mobile device from foldable case <NUM>.

With reference to <FIG>, first and second end surfaces <NUM>, <NUM> of the cover members and opposing first and second hinge members 10A, 10B together define opposing side openings <NUM>, <NUM> when the case is in the open position. Each of side openings <NUM>, <NUM> include first aperture <NUM> spaced from its corresponding one of hinge members 10A, 10B and second aperture <NUM> adjacent to and bounded by its corresponding one of the hinge members in which each of the first apertures intersects its corresponding second aperture. As best shown in <FIG>, a portion of second aperture <NUM> in some arrangements may be wider than the entirety of first aperture <NUM> along a length of the second aperture. Moreover, as further shown in this example, in some arrangements, second aperture <NUM> may have a partially circular profile which may reduce residual stresses in first and second hinge members 10A, 10B to delay structural failure due to cyclic fatigue, especially that due to rotation of the first and second cover members relative to each other.

Referring now to <FIG>, hinge members 10A, 10B are elastic such that they fold over themselves about the widthwise folding axis to provide a closed position of foldable case <NUM> in which inner peripheral rims 6A, 7A of the respective first and second cover members are in abutment. A combination of end surfaces <NUM>, <NUM> and opposing hinge members 10A, 10B forms end opening <NUM> allowing a mobile device to be inserted into foldable case <NUM>. Once a mobile device is inserted, hinge members 10A, 10B prevent one cover member from sliding off of the corresponding portion of the mobile device on which that cover member is placed without the other cover member also being slid off of the corresponding portion of the mobile device on which that other cover member is placed. Each of first and second inner sidewalls 8B, 9B of first and second inner shell portions 2B, 3B have opposing side portions that may be spaced apart a predetermined distance such that a mobile device inserted into foldable case <NUM> fits tightly between such opposing side portions. One or both of first and second inner shell portions 2B, 3B may be made of a material such that a contact surface of the one or both of the first and second inner shell portions provides sufficient friction to inhibit or prevent sliding of the inserted mobile device relative to the one or both of the first and second inner shell portions. Accordingly, in such manners, the first and second cover members and opposing hinge member 10A, 10B together retain and secure a mobile device inserted into the cover members in both open and closed positions.

As shown in <FIG>, first outer sidewall 8A of first outer shell 2A and second outer sidewall 9A of second outer shell 3A include respective first tapered surfaces 27A, 27B and second tapered surfaces 28A, 28B extending from the respective first tapered surfaces to respective outer peripheral rims 6B, 7B. Such tapered surfaces allow for fingers of users or other objects to fit between the first and the second cover members when the foldable case <NUM> is in the closed position and thereby allow for ease of opening of the foldable case.

Referring now to <FIG>, each of first and second outer shells 2A, 2B include respective recesses <NUM>, <NUM> around respective perimeters of the first and the second outer shells. Recesses <NUM>, <NUM> lie below the respective inner surfaces of outer rear walls 4A, 5A in order to allow respective first and second inner shell portions 2B, 3B of inner shell <NUM> to be formed within the recesses, e.g. by co-molding the first and the second inner shell portions into the recesses. During the molding process, steps created between recesses <NUM>, <NUM> and the inner surfaces of outer rear walls 4A, 5A may act as shutoffs for the molding tool to minimize flash on first and second inner shell portions 2B, 3B. The use of recesses <NUM>, <NUM> further allows first and second inner shell portions 2B, 3B to be thicker and thereby provide greater impact absorption than a thickness such inner shell portions could be without recesses <NUM>, <NUM>.

Referring now to <FIG>, foldable case <NUM> is substantially similar to foldable case <NUM> with the exception that foldable case <NUM> includes instrument cluster opening <NUM> in place of instrument cluster opening <NUM> and configured for alignment with and exposure of one or more instruments of the mobile device, connector opening <NUM> defined by a combination of second inner shell portion 103B of inner shell <NUM> and second outer shell 103A in place of connector opening <NUM>, and additional ports and openings <NUM>-<NUM> defined by a combination of first inner shell portion 102B of inner shell <NUM> and first outer shell 102A in place of additional ports and openings <NUM>-<NUM>. Instrument cluster opening <NUM> includes rectangular portion <NUM> and partially oval portion <NUM>, which as shown may have a semi-circular shape, although the shape of the opening may vary depending on the instruments to be aligned with and exposed by the instrument cluster opening which, as with instrument cluster opening <NUM>, may be but are not limited to being one or more camera lenses, one or more camera flashes or other illumination elements, one or more rear-facing microphones, and one or more LIDAR or other navigational or environmental detection sensors. As in the example shown, instrument cluster opening <NUM> may be entirely defined by first outer shell 102A.

Referring now to <FIG>, foldable case <NUM> is substantially similar to foldable case <NUM> with the exception that foldable case <NUM> includes second outer shell 203A lacking at least a majority of a rear wall like that of rear wall 5A of second outer shell 3A, opposing hinge members 510A, 510B in place of hinge members 10A, 10B, instrument cluster opening <NUM> in place of instrument cluster opening <NUM>, connector opening <NUM> defined by a combination of first inner shell portion 202B of inner shell <NUM> and first outer shell 202A in place of connector opening <NUM>, both a first set of ports and openings <NUM>-<NUM> defined by a combination of second inner shell portion 203B of inner shell <NUM> and second outer shell 203A and a second set of ports and openings <NUM>-<NUM> defined by a combination of the first inner shell portion and the first outer shell in place of additional ports and openings <NUM>-<NUM>. The lack of a majority of a rear wall of second outer shell 203A provides a large opening that allows separate display screens to be visible through both the front and the rear of the second outer shell. In some arrangements, a rear wall of second outer shell 203A may cover less than <NUM>%, and preferably less than <NUM>%, of a rear-facing side of a mobile device inserted into a combination of second inner shell portion 203B and second outer shell 203A defining a second cover member of foldable case <NUM>.

Instrument cluster opening <NUM>, as in the example shown and like instrument cluster opening <NUM> of foldable case <NUM>, may be entirely defined by first outer shell 202A. In some arrangements, instrument cluster opening <NUM> may be a lens opening as in the example shown that exposes one or more camera lenses of a mobile device or such opening may be but is not limited to being configured to expose one or more camera flashes or other illumination elements, one or more rear-facing microphones, and one or more LIDAR or other navigational or environmental detection sensors. In some alternative arrangements, instead of having lens opening <NUM>, first outer shell 202A may lack at least a majority of a rear wall in the same manner as second outer shell 203A to provide a large opening that allows yet a further separate display screen to be visible through foldable case <NUM>.

Opposing ports <NUM>-<NUM> are configured to receive auxiliary components such as headphone jacks while openings <NUM>, <NUM> are configured to expose components of the mobile device. As in the example shown, openings <NUM>, <NUM> may be media openings configured to expose speakers on the mobile device, although in other arrangements such openings in the form shown or upon modification may partially or fully expose microphones, other sensors, or componentry, or such openings may be aligned with antenna keep-out areas. In the example shown, openings <NUM>, <NUM> each include a plurality of respective dividers 233A, 2234A extending across a width of the ports. Dividers 233A, 234A may be molded with the remainder of second outer shell 203A such that they are integral with the remainder of the second outer shell, i.e., inseparable from the second outer shell without fracture of one or both of the dividers and the remainder of the second outer shell. In the example shown, second inner shell portion 203B surrounds only a periphery of ports <NUM>, <NUM> such that the second inner shell portion does not extend along dividers 233A, 234A, but in alternative arrangements, the second inner shell portion may extend along any one or all of the dividers as well.

Hinge members 510A, 510B of inner shell <NUM> operate in the same manner as hinge members 10A, 10B but extend between corners of adjacent left and right sides of first inner shell portion 202B and second inner shell portion 203B, respectively, aligned with respective corners of first outer shell 202A and second outer shell 203A. In this manner, a first cover member formed by the combination of first outer shell 202A and first inner shell portion 202B and a second cover member formed by the combination of second outer shell 203A and second inner shell portion 203B are rotatable, by way of the flexibility of hinge members 510A, 510B, about a lengthwise folding axis defined by the hinge members and extending along the adjacent left and right sides of first inner shell portion and second inner shell portion, respectively.

As shown in <FIG>, a front side of second outer shell 203A includes adjacent openings 231A, 231B aligned with a cutout of second inner shell portion 203B. In this manner, openings 231A, 231B are configured for alignment with speakers on an inserted mobile device.

Preferred hard/rigid materials, such as for outer shells 2A, 3A, 102A, 103A, 202A, 203A include hardened plastic material, a rigid or semi-rigid plastic material, a rigid/hard rubber material, a polycarbonate material, a metal, an alloy, a para-aramid material, wood, glass, mirror, quartz, and any combination thereof, and may be any color or texture. Flexible components, such as inner shells <NUM>, <NUM>, <NUM> preferably may be made of elastomeric or other suitably flexible materials. Preferred materials include thermosetting plastics having a hardness of shore 5D to shore 100D, PC, poly(methyl methacrylate) ("PMMA"), metals, acrylonitrile butadiene styrene ("ABS"), PMMA, polyethylene terephthalate ("PET"), high durometer TPEs and TPUs having a hardness of shore 30D to shore 100D, and any combination thereof. In some arrangements, inner shell <NUM> may be made of a non-Newtonian dilatant material, as further described in <CIT> and <CIT>, the entireties of the disclosures of which hereby being incorporated herein by reference.

In some arrangements, any one or any combination of surfaces of outer shells 2A, 3A and inner shell <NUM> exposed to users of foldable case <NUM> may be treated with an antimicrobial material applied as a coating or any one or combination of the outer shells and the inner shell may have an antimicrobial material embedded into them. Preferred antimicrobial materials include silver or silver alloy (e.g., silver sodium hydrogen zirconium phosphate), copper or copper alloy, organosilanes, quaternary ammonium compounds (e.g., dimethyloctadecyl (<NUM>-trimethoxysilyl propyl) ammonium chloride, alkyldimethylbenzylammonium chloride, and didecyldimethylammonium chloride), chlorhexidine, chlorhexidine incorporated hydroxyapatite materials, chlorhexidine-containing polymers (e.g., chlorhexidine-containing polylactide), and antibiotics (e.g., gentamicin, cephalothin, carbenicillin, amoxicillin, cefamandol, tobramycin, vancomycin). Preferred antimicrobial coatings include coatings containing any of the aforementioned antimicrobial materials, chlorhexidine-containing polylactide coatings on an anodized surface, and polymer and calcium phosphate coatings with chlorhexidine. These antimicrobial treatments aid in reducing the presence and preventing the growth of microbes (e.g., bacteria, fungi, viruses, etc.), thereby aiding in preventing the spread of related sicknesses, illnesses, or diseases.

In some alternative arrangements, the flexible shell could be an outer structure and the rigid shells could be received in such a flexible shell. In some such arrangements, the opposing hinge members would remain as part of an integral flexible shell. In some other arrangements, there may be two separate flexible portions formed, such as by co-molding, around the rigid shells in which the opposing hinge members may be formed, such as by co-molding onto the rigid shells. In some alternative arrangements, one or both the flexible inner shell portions of the foldable case may include projections or protrusions extending inwardly toward a center the respective inner shell portions, such as in the manner of those shown and described in <CIT>.

In some alternative arrangements, an additional layer or layers, such as that described in <CIT>, may be added to either one or both first outer shell 2A or second outer shell 3A. In some arrangements, button caps, such as those shown and described in <CIT>, optionally may be applied over button covers and exposed for contact with a user of the foldable case (and likewise a user of a case assembly including a mobile device when such mobile device is received in case) in which such caps may be used to cover button covers, e.g., button cover <NUM>, such that the user does not contact the button cover. Such button caps may be held in place between the button covers or corresponding surrounding portions of inner shell <NUM> and the additional layer or layers added to either one or both first outer shell 2A or second outer shell 3A, as the case may be, by way of a tight fit between inner shell <NUM> and the corresponding additional layer or layers, which may include a slight compression of the elastomeric inner shell. In such arrangements, the button caps may be translucent, transparent, or clear, and in some such arrangements, a film or print, e.g., an ink coloring, a graphic, or an etching, may be provided between each such button cap and respective button cover such that the film or print is partially or wholly visible to the naked eye through each such button cap.

In some alternative arrangements, any of the ports and openings, e.g., instrument cluster openings <NUM>, <NUM>, <NUM> and ports and openings <NUM>-<NUM>, <NUM>-<NUM>, <NUM>-<NUM>, may be rearranged, repositioned, reconfigured, augmented with additional similar ports and openings, and be removed depending on the features of a mobile device to be used with the foldable case <NUM>, <NUM>, <NUM>. Moreover, such ports and openings may be configured to pass through either one or both of an outer shell 2A, 3A, 102A, 103A, 202A, 203A and an inner shell <NUM>, <NUM>, <NUM>.

It is noted that the terminology used above is for the purpose of reference only, and is not intended to be limiting. For example, terms such as "upper," "lower," "above," "below," "rightward," "leftward," "clockwise," and "counterclockwise" refer to directions in the drawings to which reference is made. As another example, terms such as "inward" and "outward" may refer to directions toward and away from, respectively, the geometric center of the component described. As a further example, terms such as "front," "rear," "side," "left side," "right side," "top," "bottom," "inner," "outer," "horizontal," and "vertical" describe the orientation of portions of the component within a consistent but arbitrary frame of reference which is made clear by reference to the text and the associated drawings describing the component under discussion. Such terminology will include the words specifically mentioned above, derivatives thereof, and words of similar import.

Claim 1:
A foldable case (<NUM>, <NUM>, <NUM>) for removably receiving a separate and distinct foldable mobile electronic device having a front device surface, a rear device surface opposite the front device surface, and a periphery extending between the front device surface and the rear device surface of the device, the case comprising:
first and second cover members (2A, 2B, 3A, 3B, 102A, 102B, 103A, 103B, 202A, 202B, 203A, 203B) including respective first and second rear walls (4A, 4B, 5A, 5B), respective first and second peripheral rims (6A, 7A) and respective first and second sidewalls (8A, 8B, 9A, 9B) extending between the respective rear walls and the respective peripheral rims and thereby defining respective first and second recesses configured for receiving respective first and second portions of the device; characterized in that the case further comprises:
opposing first and second hinge members (10A, 10B, 210A, 210B) each extending between adjacent locations at the respective peripheral rims of the first and the second cover members to hingedly connect the first and the second cover members.