Patent Publication Number: US-11653746-B1

Title: Convertible carrying case

Description:
The present application is a continuation of U.S. patent application Ser. No. 15/654,247 filed Jul. 19, 2017, now U.S. Pat. No. 10,433,633. U.S. patent application Ser. No. 15/654,247 is a continuation of U.S. patent application Ser. No. 14/454,557 filed Aug. 7, 2014, now U.S. Pat. No. 9,717,322. U.S. patent application Ser. No. 14/454,557 is a continuation of U.S. patent application Ser. No. 13/544,970 filed Jul. 9, 2012, now U.S. Pat. No. 8,820,596. U.S. patent application Ser. No. 13/544,970 is an application claiming the benefit of U.S. Provisional Patent Application No. 61/506,026, filed Jul. 8, 2011. The present application is based on and claims priority from these applications, the disclosures of which are hereby expressly incorporated herein by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     Disclosed herein is a convertible carrying case, and more specifically a convertible case that can be converted from a first configuration (emulating a first type of carrying case) to a second configuration (emulating a second type of carrying case). 
     “Carrying cases” are devices for transporting objects. Carrying cases generally include a plurality of panels or faces that are associated in such a way so as to provide an interior and also to selectively allow access to the interior (e.g. through an opening or access structure that may be selectively opened and closed). Objects may be inserted through the opening into the interior of the carrying case. Carrying cases generally include carry structures such as handles, straps, grips, and pulls. Exemplary types of carrying cases include, but are not limited to, backpacks, briefcases, purses, handbags, totes, satchels, camera bags, duffle bags, shoulder bags, clothes bags, garment bags, artist easels, makeup bags, computer bags, messenger bags, diaper bags, fishing bags, tack bags, saddlebags, luggage, suitcases, travel bags, panniers, knapsacks, and any other type of carrying case known (including those discussed in patents set forth herein) or yet to be discovered. 
     “Convertible carrying cases” are carrying cases that are convertible between at least two configurations. There are many convertible carrying cases that provide multiple ways to carry the same carrying case. Most convertible carrying cases achieve these conversions by manipulations (e.g. adding, subtracting, and/or rearranging) of straps, flaps, and other structures to change the characteristics of the carry structure and/or the main container. Examples of convertible carrying cases include U.S. Pat. No. 417,301 to Weldon (directed to a knapsack carrying case that converts between different configurations), U.S. Pat. No. 3,346,155 to Oechsle (directed to a carrying case that converts between a backpack and a purse), U.S. Pat. No. 4,273,274 to Freistadt (directed to a carrying case that converts between a backpack and a handbag), U.S. Pat. No. 4,869,408 to Lutz (directed to a carrying case that converts between a garment bag and a case for a bike carrier-rack), U.S. Pat. No. 5,749,503 to Wulf (directed to a carrying case that converts between a backpack and a wheeled suitcase), U.S. Pat. No. 5,765,733 to Brule (directed to a carrying case that converts between a backpack and a pannier for bicycling), U.S. Pat. No. 5,881,932 to Wadden (directed to a carrying case that converts between a backpack and a briefcase), U.S. Pat. No. 5,887,770 to Covell (directed to a carrying case that converts between a waist pack, day backpack, and shoulder bag), U.S. Pat. No. 5,964,384 to Young (directed to a carrying case that converts between a waist or shoulder bag and a backpack), U.S. Pat. No. 6,601,743 to Godshaw (directed to a carrying case that converts between a backpack and a duffel bag), U.S. Design Pat. No. D498,585 to Darling (directed to a carrying case that converts between a backpack and a compartmented organizer or valise), and U.S. Design Pat. No. D545,056 to Leighton (directed to a carrying case that converts between a backpack and a briefcase). 
     U.S. Published Application No. 2003/0042277 to Gulmatico is directed to a carrying case that converts between a backpack and an elongated sports equipment bag. This bag is designed for carrying snow boards, skis, and other lengthy sports equipment. Then, when the user reaches the sports field (e.g. mountain top), a carry harness (in a harness pouch) can be revealed and the bag can be used as a backpack. The lower portion of the elongated bag, when empty, is adapted for folded placement exteriorly to the rear panel in positional opposition to the harness pouch. 
     U.S. Pat. No. 4,236,657 to Brunton is directed to a backpack with shoulder straps that has a flap along one rear side edge thereof and a pair of leaves hingedly connected by a zipper to the flap. The leaves form an envelope that opens out at a right angle to the zip when the leaves are arranged in a packing position, enabling clothes to be received neatly into the envelope whereupon the leaves are wrapped around one another and the pack in a stouted position and secured. The envelope is detachable from the pack and has a handle to permit use as a release. 
     U.S. Pat. No. 2,493,506 to Schwartbard is directed to a reversible handbag having twin handbag portions. Each handbag portion has a first side of a first color, first grain, or first material (the first scheme) and a second side of a second color, second grain, or second material (the second scheme). The handbag portions are connected by two rings. In one configuration, the first schemes are adjacent and the second schemes are exposed on the exterior of the handbag. In another configuration, the second schemes are adjacent and the first schemes are exposed on the exterior of the handbag. The Schwartbard handbag is easily transitioned between the configuration having the exterior first scheme and the configuration having the exterior second scheme by rotating the handbag portions around the rings. This allows the wearer to adapt the scheme of the exterior handbag to match the scheme of the wearer. Schwartbard specifically discloses that each handbag portion has a single opening that remains “on top” so that it is accessible in either configuration. 
     U.S. Pat. No. 2,010,166 to Thompson is directed to a golf bag that can be inverted to carry with the golf club pockets on the inside or the outside. When on the inside of the Thomson golf bag, the clubs are wholly enclosed within the bag. 
     The Tumi Dror Benshetrit line is a collection of travel, business, and day bags that “transform” or change their shape and/or purpose. One case (the “brief”) is “two cases in one” in that it transforms from a slim portfolio with a large faceted front panel to a medium capacity brief with a smaller faceted panel. This transformation is accomplished by unzipping and inverting to change shape and functionality. 
     All the convertible carrying cases described above have limitations as will be described herein. 
     BRIEF SUMMARY OF THE INVENTION 
     Disclosed herein is a convertible carrying case, and more specifically a convertible case that can be converted from a first configuration (emulating a first type of carrying case) to a second configuration (emulating a second type of carrying case). Convertible carrying cases such as those described herein include at least two containers. The process of conversion does not necessitate the removal or rearrangement of the contents of the containers. 
     A preferred convertible carrying case has a first container and a second container. The first container has a primary face and a secondary face; the primary face and the secondary face at least partially surround an interior of the first container; the primary face has a primary access structure for accessing the interior of the first container; the secondary face has a secondary access structure for accessing the interior of the first container; and the first container has a first mateable half of an openable-closeable connection. The second container has a primary face and a secondary face; the primary face and the secondary face at least partially surround an interior of the second container; the primary face has a primary access structure for accessing the interior of the second container; the secondary face has a secondary access structure for accessing the interior of the second container; and the second container has a second mateable half of the openable-closeable connection. A hinge connection is situated between the first container and the second container; the hinge connection facilitates the conversion between a primary configuration and a secondary configuration; the primary configuration has the primary faces facing outward while the secondary faces are adjacent to each other; and the secondary configuration with the secondary faces facing outward while the primary faces are adjacent to each other. The first mateable half of the openable-closeable connection and the second mateable half of the openable-closeable connection are connectable to secure the containers in either of the configurations. Preferably, contents within the containers may remain during conversion between the primary configuration and the secondary configuration. Preferably, the interiors of the containers are accessible through respective primary access structure in respective primary faces when the convertible carrying case is in the primary configuration, and wherein the interiors of the containers are accessible through respective secondary access structure in respective secondary faces when the convertible carrying case is in the secondary configuration. Preferably, the primary configuration emulates a first type of carrying case and the secondary configuration emulates a secondary type of carrying case. Preferably, the primary configuration emulates a first type of carrying case that has a first orientation and the secondary configuration emulates a secondary type of carrying case that has a secondary orientation, the first orientation being horizontal and the second orientation being vertical. Preferably, at least one of the configurations has a compartment defined between the first container and the second container. Preferably, the configurations are a backpack configuration and a briefcase configuration. Preferably, the convertible carrying case further includes a tertiary configuration, the configurations being a backpack configuration, a briefcase configuration, and a saddlebag configuration. Preferably, each container has an annular extension, at least part of each of the annular extensions associated with the hinge connection, at least part of the remainder of the annular extensions associated with respective mateable halves of the openable-closeable connection. Preferably, in convertible carrying cases having annular extensions, the annular extensions associated with respective mateable halves bend towards each other to allow the openable-closeable connection to secure the convertible carrying case in one of the configurations. 
     The first container has a primary face and a secondary face; the primary face and the secondary face at least partially surround an interior of the first container; the primary face has a primary access structure for accessing the interior of the first container; the secondary face has a secondary access structure for accessing the interior of the first container; and the first container has a first mateable half of an openable-closeable connection. The second container has a primary face and a secondary face; the primary face and the secondary face at least partially surround an interior of the second container; the primary face has a primary access structure for accessing the interior of the second container; the secondary face has a secondary access structure for accessing the interior of the second container; and the second container has a second mateable half of the openable-closeable connection. A hinge connection is situated between the first container and the second container; the hinge connection facilitates the conversion between a primary configuration and a secondary configuration; the primary configuration has the primary faces facing outward while the secondary faces are adjacent to each other; and the secondary configuration with the secondary faces facing outward while the primary faces are adjacent to each other. The interiors of the containers are accessible through respective primary access structure in respective primary faces when the convertible carrying case is in the primary configuration; and wherein the interiors of the containers are accessible through respective secondary access structure in respective secondary faces when the convertible carrying case is in the secondary configuration. Preferably, the contents within the containers may remain during conversion between the primary configuration and the secondary configuration. Preferably, the primary configuration emulates a first type of carrying case and the secondary configuration emulates a second type of carrying case. Preferably, the primary configuration emulates a first type of carrying case that has a first orientation and the secondary configuration emulates a second type of carrying case that has a secondary orientation, the first orientation being horizontal and the second orientation being vertical. Preferably, at least one of the configurations has a compartment defined between the first container and the second container. Preferably, the configurations are a backpack configuration and a briefcase configuration. Preferably, the convertible carrying case further includes a tertiary configuration, the configurations being a backpack configuration, a briefcase configuration, and a saddlebag configuration. Preferably, each container has an annular extension, at least part of each of the annular extensions associated with the hinge connection, at least part of the remainder of the annular extensions associated with respective mateable halves of the openable-closeable connection. Preferably, in convertible carrying cases having annular extensions, the annular extensions associated with respective mateable halves bend towards each other to allow the openable-closeable connection to secure the convertible carrying case in one of the configurations. 
     A method for converting a convertible carrying case between a primary configuration and a secondary configuration. The method includes the steps of providing a first container and a second container as described herein. Another step is rotating at least one of the first and second containers about a longitudinal hinge connection, the hinge connection between the first container and the second container, the rotating converting the convertible carrying case in the primary configuration with the primary faces facing outward while the secondary faces are adjacent to each other to the secondary configuration with the secondary faces facing outward while the primary faces are adjacent to each other. Yet another step is flipping the annular extensions to allow the first mateable half of the openable-closeable connection and the second mateable half of the openable-closeable connection connectable to secure the containers in either of the configurations. The containers are accessible through the primary access structure when the convertible carrying case is in the primary configuration and accessible through the secondary access structure when the convertible carrying case is in the secondary configuration. 
     The subject matter described herein is particularly pointed out and distinctly claimed in the concluding portion of this specification. Objectives, features, combinations, and advantages described and implied herein will be more readily understood upon consideration of the following detailed description of the invention, taken in conjunction with the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS 
       The accompanying drawings illustrate various exemplary convertible carrying cases and/or provide teachings by which the various exemplary convertible carrying cases are more readily understood. 
         FIG.  1    is a front perspective view of a first exemplary convertible carrying case configured as a backpack. 
         FIG.  2    is a front view of the first exemplary convertible carrying case configured as a backpack. 
         FIG.  3    is a rear view of the first exemplary convertible carrying case configured as a backpack. 
         FIG.  4    is a top view of the first exemplary convertible carrying case configured as a backpack. 
         FIG.  5    is a bottom view of the first exemplary convertible carrying case configured as a backpack. 
         FIG.  6    is a first side view of the first exemplary convertible carrying case configured as a backpack. 
         FIG.  7    is a second side view of the first exemplary convertible carrying case configured as a backpack. 
         FIGS.  8 - 13    are views of a simplified exemplary convertible carrying case going through the conversion process between a backpack and a briefcase. 
         FIG.  14    is a front perspective view of the first exemplary convertible carrying case configured as a briefcase. 
         FIG.  15    is a front view of the first exemplary convertible carrying case configured as a briefcase. 
         FIG.  16    is a rear view of the first exemplary convertible carrying case configured as a briefcase. 
         FIG.  17    is a top view of the first exemplary convertible carrying case configured as a briefcase. 
         FIG.  18    is a bottom view of the first exemplary convertible carrying case configured as a briefcase. 
         FIG.  19    is a first side view of the first exemplary convertible carrying case configured as a briefcase. 
         FIG.  20    is a second side view of the first exemplary convertible carrying case configured as a briefcase. 
         FIG.  21    is a front perspective view of a second exemplary convertible carrying case configured as a briefcase. 
         FIG.  22    is a front view of the second exemplary convertible carrying case configured as a briefcase. 
         FIG.  23    is a side view of the second exemplary convertible carrying case configured as a briefcase. 
         FIGS.  24 - 25    are perspective views of the second exemplary convertible carrying case with the two containers separated to expose the spanning yoke. 
         FIG.  26    is a perspective view of the second exemplary convertible carrying case with the two containers separated and the spanning yoke in its fully extended position such that the second exemplary convertible carrying case may be used as a saddlebag. 
         FIG.  27    is a cross-sectional view of the top portions of the two containers of the second exemplary convertible carrying case, the two containers separated, and the spanning yoke disconnected (but with guide lines showing the intended connections). 
         FIG.  28    is a perspective view of the second exemplary convertible carrying case in the process of conversion, the spanning yoke secured to the face of a container. 
         FIG.  29    is a front perspective view of the second exemplary convertible carrying case configured as a backpack, the spanning yoke secured to the face of a container. 
         FIG.  30    is a simplified plan view of a simplified exemplary convertible carrying case, the double-sided solid black arrow between the two containers representing a hinge connection and the outlined arrows representing openable-closeable connections (the actual openable-closeable connections also being located on the top and bottom edges). 
         FIG.  31    is a simplified plan view of the exemplary convertible carrying case in an open, flattened position, each container showing its “A” face, each Face A having an access structure through which the contents of its respective container may be accessed. 
         FIG.  32    is a simplified plan view of the exemplary convertible carrying case in the open, flattened position, each container showing its “B” face, each Face B having an access structure through which the contents of its respective container may be accessed. 
         FIG.  33    is a simplified plan top view of the exemplary convertible carrying case in a first folded configuration with Face B of Container # 1  being substantially coextensive with Face B of Container # 2 . 
         FIG.  34    is a simplified plan top view of the exemplary convertible carrying case in an intermediate position between the folded configuration of  FIG.  33    and the flat configuration of  FIG.  35   . 
         FIG.  35    is a simplified plan top view of the exemplary convertible carrying case in an open, flattened position, the relationship of the faces to their respective containers being shown. 
         FIG.  36    is a simplified plan top view of the exemplary convertible carrying case in an intermediate position between the flat configuration of  FIG.  35    and the folded configuration of  FIG.  37   . 
         FIG.  37    is a simplified plan top view of the exemplary convertible carrying case in a first folded configuration with Face A of Container # 1  being substantially coextensive with Face A of Container # 2 . 
         FIG.  38    is a simplified plan view of a simplified exemplary convertible carrying case, the periphery of each container having an annular extension, the annular extension along adjacent sides of the containers being attached together, the remaining sides of the annular extensions having openable-closeable connections associated therewith for use when the containers are aligned either in the configuration of  FIG.  33    or the configuration of  FIG.  37   . 
         FIG.  39    is a simplified cross-sectional view of a simplified exemplary container showing access structure in both faces and optional accessory holder(s) on its interior surfaces. 
         FIG.  40    is a simplified cross-sectional view of an exemplary convertible carrying case in a folded configuration, each container having one soft face and one hard/rigid face, with the hard/rigid face being substantially coextensive and the soft face being external to the carrying case. 
         FIG.  41    is a simplified cross-sectional view of the exemplary convertible carrying case of  FIG.  40    in a folded configuration with the soft being substantially coextensive and the hard/rigid faces being external to the carrying case. 
         FIG.  42    is a simplified cross-sectional side view showing two extensions at the edges of respective containers, each extension having an associated mateable half, the mateable halves forming an openable-closeable connection that spans between the containers. 
         FIG.  43    is a simplified cross-sectional side view showing the extensions and mateable halves of  FIG.  42   , the mateable halves separated so that they no longer form an openable-closeable connection, and the extensions and associated mateable halves beginning the process of “flipping.” 
         FIG.  44    is a simplified cross-sectional side view showing the extensions and mateable halves of  FIG.  42   , and the extensions and associated mateable halves continuing the process of “flipping.” 
         FIG.  45    is a simplified cross-sectional side view showing the extensions and mateable halves of  FIG.  42   , and the extensions and associated mateable halves finishing the process of “flipping” so that after the containers rotate about the longitudinal hinge connection (not shown), the extensions and associated mateable halves will point towards the internal faces so that the associated connections span between the containers in the new position. 
     
    
    
     The drawing figures are not necessarily to scale. Certain features or components herein may be shown in somewhat schematic form and some details of conventional elements may not be shown or described in the interest of clarity and conciseness. The drawing figures are hereby incorporated in and constitute a part of this specification. 
     DETAILED DESCRIPTION OF THE INVENTION 
     Disclosed herein are convertible carrying cases, and more specifically convertible carrying cases that can be converted from a primary or first configuration (emulating a primary or first type of carrying case) to a secondary or second configuration (emulating a secondary or second type of carrying case). The first and second types (and therefore the configurations) may be the same or may be different. The first and second types (and therefore the configurations) may have the same or different orientations (e.g. both horizontal, both vertical, or one horizontal and one vertical). 
     Convertible carrying cases such as those described herein include at least two containers (referred to generally as Container # 1  (or container  100 ) and Container # 2  (or container  200 )). The process of conversion does not necessitate the removal or rearrangement of the contents of the containers  100 ,  200 . 
     In its simplest form, each of the two containers  100 ,  200  of a preferred convertible carrying case has two faces (Face A or the primary face and Face B or the secondary face). Face A of Container # 1  is referred to as face  110 , Face B of Container # 1  is referred to as face  120 , Face A of Container # 2  is referred to as face  210 , and Face B of Container # 2  is referred to as face  220 . Each face  110 ,  120 ,  210 ,  220  of each container  100 ,  200  has access structure  112 ,  122 ,  212 ,  222  that allows access into the interior of its respective container  100 ,  200 . To be clear, each container  100 ,  200  has two access structures (one primary access structure and one secondary access structure), one associated with each face (primary access structures associated with primary faces and secondary access structures associated with secondary faces). The two containers  100 ,  200  are connected together along an adjacent edge of each container  100 ,  200  using a hinge connection  300 . The remaining periphery of each container  100 ,  200  have a mateable half  410 ,  420  of an openable-closeable connection  400 . The hinge connection  300  allows transitioning between (conversion) two folded configurations: a primary configuration has the primary faces (e.g. Faces A or faces  110 ,  210 ) facing outward while the secondary faces (e.g. Faces B or faces  120 ,  220 ) are adjacent to each other, and a secondary configuration has the secondary faces (e.g. Faces B or faces  120 ,  220 ) facing outward while the primary faces (e.g. Faces A or faces  110 ,  210 ) are adjacent to each other. When the two containers  100 ,  200  are in a folded configuration such that the two containers  100 ,  200  are substantially coextensive, the openable-closeable connection  400  can be closed (the mateable halves  410 ,  420  joined together) to hold the containers  100 ,  200  in that position and to create a compartment  450  ( FIG.  41   ) therebetween. 
       FIGS.  1 - 20    show first exemplary convertible carrying case that converts between a backpack configuration and a briefcase configuration.  FIGS.  1 - 7    show the backpack configuration.  FIGS.  8 - 13    show a simplified carrying case (without, for example, the optional pockets) exemplary conversion process between the backpack configuration and the briefcase configuration.  FIGS.  14 - 20    show the briefcase configuration. The general reference numbers have been modified with “a” with the following as examples: Container # 1  is container  100   a , Container # 2  is container  200   a , Face A of Container # 1  is face  110   a , Face B of Container # 1  is face  120   a , Face A of Container # 2  is face  210   a , Face B of Container # 2  is face  220   a , hinge connection  300   a , openable-closeable connection  400   a , the mateable halves of the openable-closeable connection are half  410   a  and half  420   a.    
       FIGS.  21 - 29    show second exemplary convertible carrying case that converts between a backpack configuration and a briefcase configuration. Further, this second exemplary convertible carrying case has an additional saddlebag configuration to which it can also be converted. This equates to a convertible carrying case having a primary configuration, a secondary configuration, and a tertiary configuration.  FIGS.  21 - 23    show an exemplary briefcase configuration.  FIGS.  24 - 25    show an exemplary conversion between the briefcase configuration and the saddlebag configuration.  FIG.  26    shows an exemplary saddlebag configuration with a spanning yoke  320   b  fully extended.  FIG.  27    shows attachment guide lines representing how the spanning yoke could be secured in an exemplary conversion between the briefcase configuration and the backpack configuration (as well as when the carrying case is in either the briefcase configuration or the backpack configuration).  FIG.  28    shows an exemplary intermediate step in an exemplary conversion between the briefcase configuration and the backpack configuration.  FIG.  29    shows an exemplary backpack configuration. The general reference numbers have been modified with “b” with the following as examples: Container # 1  is container  100   b , Container # 2  is container  200   b , Face A of Container # 1  is face  110   b , Face B of Container # 1  is face  120   b , Face A of Container # 2  is face  210   b , Face B of Container # 2  is face  220   b , hinge connection  300   b , openable-closeable connection  400   b , the mateable halves of the openable-closeable connection are half  410   b  and half  420   b .  FIGS.  21 - 29    also have reference numbers associated with the spanning yoke  320   b  including a spanning yoke openable-closeable connections  330   b ,  340   b . “Hinge” spanning yoke openable-closeable connection  330   b  (implemented as two mateable halves  332   b ,  334   b ) secures the “loose” side of the hinge connection  300   b  to the opposite container  200   b . A “flap” spanning yoke openable-closeable connection  340   b  (implemented as two mateable halves  342   b ,  344   b ) secures the “flap” created by the folded spanning yoke  320   b  to the face  201   b  of the opposite container  200   b.    
     Alternative convertible carrying cases convert between two backpack carrying cases or between two briefcase carrying cases, for example, to change colors or fabrics on the exterior surface. Still other alternative convertible carrying cases convert between any combination of backpacks, briefcases, purses, handbags, totes, satchels, camera bags, duffle bags, shoulder bags, clothes bags, garment bags, artist easels, makeup bags, computer bags, messenger bags, diaper bags, fishing bags, tack bags, saddlebags, panniers, luggage, suitcases, travel bags, knapsacks, and any other type of carrying case known (including those discussed in patents set forth herein) or yet to be discovered. Specific materials (e.g. soft materials such as fabrics, rigid materials such as metals, or hybrid materials such as leather that are not completely soft or rigid) and features (e.g. accessory holders such as pockets and pouches and carry structure such as handles and straps) would be consistent with the specific carrying cases used. 
     Definitions 
     Before describing the convertible carrying case and the figures, some of the terminology should be clarified. Please note that the terms and phrases may have additional definitions and/or examples throughout the specification. Where otherwise not specifically defined, words, phrases, and acronyms are given their ordinary meaning in the art. Exemplary convertible carrying cases may be better understood with reference to the drawings, but these convertible carrying cases are not intended to be of a limiting nature. The following paragraphs provide some of the definitions for terms and phrases used herein.
         The term “container” is meant to describe an at least substantially enclosed structure that can be used to hold and/or transport objects within it. Each container preferably has two panels or faces (shown as Face A and Face B). Each face has an internal surface that is internal to the container and an external surface. Exemplary containers may be, for example, pouches (with soft faces made of material), boxes (with rigid faces), and/or hybrid structures (either with one soft face and one rigid face or with faces that have a mid-level stiffness between hard and soft). General and exemplary containers are designated by reference numbers  100   a ,  100   b ,  200   a , and  200   b . General and exemplary faces are designated by reference numbers  110 ,  120 ,  210 ,  220 ,  110   a ,  120   a ,  210   a ,  220   a ,  110   b ,  120   b ,  210   b , and  220   b.      The phrase “access structure” is meant to describe structure that allows access. In its simplest form, the access structure is an opening that has associated openable-closeable mechanisms such as a zipper, hook-and-loop fabric (e.g. VELCRO®), a series of small openable-closeable mechanisms (e.g. snaps, buttons, hooks &amp; eyes), straps, buckles, or any other openable-closeable mechanism known or yet to be discovered. Preferably there is at least one access structure on each face of each container. Having access structure on each face allows a user to access the container regardless of which face is facing outward. General and exemplary access structures are designated by reference numbers  112 ,  122 ,  212 ,  222 ,  112   a ,  122   a ,  212   a ,  222   a ,  112   b ,  122   b ,  212   b , and  222   b.      The term “connection” is meant to describe mechanisms used for attaching. Two “connections” used in the convertible carrying cases disclosed herein are “hinge connections” (general and exemplary hinge connections are designated by reference numbers  300 ,  300   a , and  300   b ) and “openable-closeable connections” (general and exemplary openable-closeable connections are designated by reference numbers  400 ,  400   a , and  400   b ). Hinge connections may function as a hinge between two containers. A hinge connection may be, for example, an expanse of fabric sewn between two containers  100 ,  200 . An openable-closeable connection is both openable (to allow separation) and closeable (to prevent separation). An openable-closeable connection  400  is generally implemented as two mateable halves (general and exemplary mateable halves are designated by reference numbers  410 ,  420 ,  410   a ,  420   a ,  410   b , and  420   b ). An openable-closeable connection may be, for example, a zipper, one side of which is associated with one container and the other side of which is associated with the other container. Alternative openable-closeable connections may be hook-and-loop fabric (e.g. VELCRO®), a series of small openable-closeable mechanisms (e.g. snaps, buttons, hooks &amp; eyes), straps, buckles, or any other openable-closeable mechanism known or yet to be discovered. It should be noted that a hinge connection may also be an openable-closeable connection or have openable-closeable connections associated therewith. Two specialized openable-closeable connections used with the saddlebag configuration are the “hinge” spanning yoke openable-closeable connection  330   b  (implemented as two mateable halves  332   b ,  334   b ) and the “flap” spanning yoke openable-closeable connection  340   b  (implemented as two mateable halves  342   b ,  344   b ).   The term “extension” or the phrase “annular extension” has to do with the structure that surrounds each of the containers  100 ,  200 . The extension(s) (which are shown in some figures as extensions  500   a  and in other figures as extensions  500   b ) is/are associated with the hinge connections and openable-closeable connections. The direction of the extensions  500  “flips” between the faces such that the extensions  500  point towards the internal faces so that the associated connections span between the containers  100 ,  200 .  FIG.  38    shows an exaggerated annular extension  500 . The hinge connection  300  is shown as being adjacent sides of the extensions  500  between the two containers  100 ,  200 . The remaining sides of the extensions each have an associated openable-closeable connection  400 ,  410 ,  420 . The “flipping” is shown in  FIG.  8   .  FIGS.  40  and  41    show how the extensions and associated connections  300 ,  400 , when in the closed position, span between the containers  100 ,  200 .  FIGS.  42 - 45    show the progression of the “flipping.”   The phrase “accessory holders” is any structure into which additional items (accessories) can be attached or inserted. Exemplary accessory holders include, for example, pockets, pouches, hold down straps, clips, hoops, loops, snaps, hooks, and other known structure by which additional items may be attached or inserted in relation to the carrying case. Although shown in the figures, these accessory holders are optional. General and exemplary accessory holders are designated by reference numbers  510 ,  520 ,  510   a ,  510   b ,  520   a , and  520   b.      The phrase “carry structure” is structure that is associated with one or more containers that a user can use to carry or hold the carrying case. Exemplary carry structure includes handles, straps, grips, pulls, wheels, and any additional structure that a user could use to hold the carrying case. The carry structure may be specific for the specific type of carrying case the face is emulating. For example, if the outer faces are showing a briefcase, the carry structure might be handles on the outer face of each container. Another example would be if the outer faces are showing a backpack, the carry structure might be two straps on the outer face of one container. General and exemplary carry structures are designated by reference numbers  530 ,  530   a , and  530   b.      The term “associated” is defined to mean integral or original, retrofitted, attached, or positioned near. As an example, as set forth herein, the extension(s)  500  is/are associated with the hinge connections and openable-closeable connections. The extensions  500  may be integral with the hinge connection  300 . The extensions  500  may be integral with, or may be attached to the openable-closeable connection  400 ,  410 ,  420 .   Unless specifically stated otherwise, the terms “first,” “second,” and “third” are meant solely for purposes of designation and not for order or limitation. Similarly, the terms “primary,” “secondary,” and “tertiary” are meant solely for purposes of designation and not for order or limitation. (For example, “primary configuration,” “secondary configuration,” and “tertiary configuration” have no specific order.) Still further, letters and numbers are used solely for purposes of designation and not for order or limitation. It should also be noted that use of numbers (e.g. # 1  or # 2 ) and the use of letters (e.g. A and B) are meant solely for purposes of designation and not for order or limitation. It should be noted that the designation of reference number is meant to assist in the comprehension of the drawings and is not meant to be limiting. For example in  FIGS.  1 - 20   , container  200   a  has associated backpack straps whereas in  FIGS.  21 - 29   , container  100   b  has associated backpack straps   It should be noted that the term “front” is meant to be relative to the term “back” and the term “top” is meant to be relative to the term “bottom.”   It should be noted that the terms “may,” “might,” “can,” and “could” are used to indicate alternatives and optional features and only should be construed as a limitation if specifically included in the claims. It should be noted that the various components, features, steps, or embodiments thereof are all “preferred” whether or not it is specifically indicated. Claims not including a specific limitation should not be construed to include that limitation.   Unless specifically stated otherwise, the term “exemplary” is meant to indicate an example, representative, and/or illustration of a type. The term “exemplary” does not necessarily mean the best or most desired of the type. For example, “exemplary carry structure  530 ,  530   a , and  530   b  may be handles, straps, grips, pulls” is just a set of examples of carry structure, but other carry structure could be just as desirable.   It should be noted that, unless otherwise specified, the term “or” is used in its nonexclusive form (e.g. “A or B” includes A, B, A and B, or any combination thereof, but it would not have to include all of these possibilities). It should be noted that, unless otherwise specified, “and/or” is used similarly (e.g. “A and/or B” includes A, B, A and B, or any combination thereof, but it would not have to include all of these possibilities). It should be noted that, unless otherwise specified, the terms “includes” and “has” mean “comprises” (e.g. a device that includes, has, or comprises A and B contains A and B, but optionally may contain C or additional components other than A and B). It should be noted that, unless otherwise specified, the singular forms “a,” “an,” and “the” refer to one or more than one, unless the context clearly dictates otherwise.
 
Convertible Carrying Case:
       

       FIGS.  30 - 45    show the most basic of exemplary containers  100 ,  200  and exemplary relationships and structures associated therewith.  FIGS.  1 - 20    show a more graphic first exemplary convertible carrying case that converts between a backpack configuration and a briefcase configuration.  FIGS.  21 - 29    show a more graphic second exemplary convertible carrying case that converts between a backpack configuration, a briefcase configuration, and a saddlebag configuration. The discussion of the convertible carrying case associated with  FIGS.  30 - 45   , unless specifically stated otherwise, would be applicable to the convertible carrying cases associated with  FIGS.  1 - 29   . Similar reference numbers are used to ease in the understanding of the association except that reference numbers associated with  FIGS.  1 - 20    are modified with a lowercase “a” and reference numbers associated with  FIGS.  21 - 29    are modified with a lowercase “b.” 
       FIG.  30    shows two exemplary containers  100 ,  200  of an exemplary convertible carrying case. Each of the two containers  100 ,  200  of a preferred convertible carrying case has two faces, only one of which is visible in this figure. The double-sided solid black arrow between the two containers  100 ,  200  represents a hinge connection  300 . The outlined arrows represent the mateable halves  410 ,  420  of an openable-closeable connection  400 . The actual openable-closeable connection  400  (and the respective halves  410 ,  420 ) also may be located on the top and bottom edges as shown in  FIGS.  1 - 29   . 
       FIGS.  31  and  32    show the exemplary convertible carrying case in an open, flattened position with the respective faces (Faces A  110 ,  210  for  FIG.  31    and Faces B  120 ,  220  for  FIG.  32   ) of the respective containers  100 ,  200  being shown.  FIG.  32    is a view from the opposite side of  FIG.  31   .  FIG.  35    is an end view of the same flattened position and may be helpful in understanding the views of  FIGS.  31  and  32   . Each face  110 ,  120 ,  210 ,  220  of each container  100 ,  200  has access structure  112 ,  122 ,  212 ,  222  that allows access into the interior of its respective container  100 ,  200 .  FIGS.  31  and  32    also show that each face  110 ,  120 ,  210 ,  220  may optionally have one or more associated holder(s)  510 ,  520 . Omitted for simplicity in these figures (as well as  FIGS.  33 - 38   ) is the carry structure  530  that may be associated with the faces  110 ,  120 ,  210 ,  220 . 
       FIG.  31    shows the exemplary convertible carrying case in an open, flattened position with one face (Face A  110 ,  210 ) being shown. Each Face A  110 ,  210  has an access structure  112 ,  212  through which the contents of its respective container  100 ,  200  may be accessed. In this exemplary convertible carrying case, when Face A  110 ,  210  is the exterior surface, because the access structure  112 ,  212  is perpendicular to the longitudinal axis, the convertible carrying case would most likely be used in a vertical orientation (like a backpack) with the access structure  112 ,  212  positioned near the top of the convertible carrying case. 
       FIG.  32    shows the exemplary convertible carrying case in an open, flattened position with one face (Face B  120 ,  220 ) being shown. Each Face B  120 ,  220  has an access structure  122 ,  222  through which the contents of its respective container  110 ,  210  may be accessed. In this exemplary convertible carrying case, when Face B  120 ,  220  is the exterior surface, because the access structure  122 ,  222  is parallel to the longitudinal axis, the convertible carrying case would most likely be used in a horizontal orientation (like a briefcase) with the access structure  122 ,  222  positioned near the top of the convertible carrying case. 
     As set forth,  FIGS.  1 - 20    show a first exemplary convertible carrying case that converts between a backpack configuration and a briefcase configuration and  FIGS.  21 - 29    show second exemplary convertible carrying case that converts between a backpack configuration, a briefcase configuration, and a saddlebag configuration. The steps for converting between one configuration (shown graphically in  FIGS.  1 - 7    and  FIG.  29    as a backpack configuration) and another configuration (shown graphically in  FIGS.  14 - 23    and  FIGS.  21 - 23    as a briefcase configuration) are shown in their simplest form in  FIGS.  33 - 37   . The series of configuration conversion steps that make up the containers&#39;  100 ,  200  rotation about a longitudinal hinge connection  300  are as follows:
           FIG.  33    shows the exemplary convertible carrying case in a first folded position with Face B (not labeled) of container  100  being substantially coextensive with Face B (not labeled) of container  200 . Face A  110  and Face A  210  would be on the exterior of the convertible carrying case.     FIG.  34    shows the exemplary convertible carrying case in an intermediate position between the folded position of  FIG.  33    and the flat position of  FIG.  35   . In  FIG.  34    the containers  100 ,  200  rotate apart about the longitudinal hinge connection  300 .     FIG.  35    shows the exemplary convertible carrying case in an open, flattened position, the relationship of the faces  110 ,  120 ,  210 ,  220  to their respective containers  100 ,  200  being shown.     FIG.  36    shows the exemplary convertible carrying case in an intermediate position between the flat position of  FIG.  35    and the folded position of  FIG.  37   . In  FIG.  36    the containers  100 ,  200  rotate towards each other about the longitudinal hinge connection  300 .     FIG.  37    shows the exemplary convertible carrying case in a second folded position with Face A (not labeled) of container  100  being substantially coextensive with Face A (not labeled) of container  200 . Face B  120  and Face B  220  would be on the exterior of the convertible carrying case.       

     It should be noted that the “rotation” and “rotating” of the containers  100 ,  200  about the longitudinal hinge connection  300  is meant to be relative. The rotation may actually be only one container  100 ,  200  while the other container  100 ,  200  remains stationary. 
       FIG.  38    shows the containers  100 ,  200  of the convertible carrying case having an annular extension  500 . The annular extension  500  along adjacent sides of the containers  100 ,  200  (one side of each container  100 ,  200 ) are associated (e.g. attached or integral) so as to form the hinge connection  300 . The remaining sides of the annular extensions  500  have openable-closeable connections  400  associated therewith for use when the containers  100 ,  200  are aligned either in the configuration of  FIG.  33    or the configuration of  FIG.  37   .  FIGS.  33 ,  37 , and  40 - 45    show the mateable halves  410 ,  420  ( FIGS.  33  and  37   ) and the extensions  500  ( FIGS.  40  and  41   ) with container ends associated with the edge of the container  100 ,  200  and “free” ends with the mateable halves  410 ,  420  that can be joined to form the openable-closeable connections  400 . As shown in  FIG.  42   , the free ends bend towards or “point” towards each other so that when they are joined they span the gap (or compartment) between the containers  100 ,  200 .  FIGS.  43 - 45    show the progression of the extensions  500  and mateable halves  410 ,  420  as they “flip.” The flexibility of the extensions  500  allows the bending or pointing to be performed repeatedly to secure the containers  100 ,  200  in the various configurations. Before, after, or during the steps associated with the containers  100 ,  200  rotating about a longitudinal hinge connection  300 , the direction of the extensions  500  “flips” between the faces  110 ,  120 ,  210 ,  220  such that the extensions  500  point towards the internal faces so that the associated connections span between the containers  100 ,  200 . The beginning of exemplary “flipping” is shown graphically in  FIG.  8    and the completion of the exemplary “flipping” is shown graphically in  FIG.  9   . In the  FIG.  8 - 9    example, the “flipping” occurs prior to or at the beginning of the rotation about a longitudinal hinge connection  300 . The “flipping,” however, can be performed at other stages of the conversion.  FIGS.  40 - 42    show how the extensions  500  and associated connections  300 ,  400 , when in the closed position, span between the containers  100 ,  200 . 
       FIG.  39    is a simplified cross-sectional view of a simplified exemplary container  100 ,  200  showing access structure  112 ,  122 ,  212 ,  222  in both faces  100 ,  200  and optional accessory holder(s)  512 ,  522  on its interior surfaces. 
       FIGS.  40  and  41    show a simplified exemplary convertible carrying case with two containers  100 ,  200  each having one soft face  110 ,  210  and one hard/rigid face  120 ,  220 .  FIG.  40    shows the convertible carrying case in a folded position (similar to  FIG.  33  or  37   ) with the hard/rigid faces  120 ,  220  being substantially coextensive and the soft faces  110 ,  210  being external to the carrying case.  FIG.  41    shows the carrying case in a folded position (similar to  FIG.  33  or  37   ) with the soft faces  110 ,  210  being substantially coextensive and the hard/rigid faces  120 ,  220  being external to the carrying case. These figures also show exemplary items in each container  100 ,  200 . The containers  100 ,  200  are accessible through the access structure  112 ,  122 ,  212 ,  222  on the outer faces  110 ,  120 ,  210 ,  220  of the containers  100 ,  200 . The containers  100 ,  200  also are shown with exemplary carry structure (in phantom).  FIG.  41    also shows that additional items (item  4 ) can be stored in a compartment  450  between the two containers  100 ,  200  (and surrounded and enclosed by the annular extension  500 ). 
     Saddlebag Configuration: 
       FIGS.  21 - 29    show the second exemplary convertible carrying case that not only converts between a backpack configuration and a briefcase configuration, but has an additional saddlebag configuration to which it can also be converted.  FIGS.  21 - 23    show an exemplary briefcase configuration.  FIG.  29    shows an exemplary backpack configuration. The second exemplary convertible carrying case differs from the first exemplary convertible carrying case in three related aspects. The first and most obvious distinction is the presence of the spanning yoke  320   b  (shown in an intermediary position in  FIGS.  24 ,  25 , and  27   , in the fully extended position in  FIG.  26   , and in the secured position in  FIGS.  28  and  29   ). The second distinction is that the hinge connection  300   b  is associated with the spanning yoke  320   b  (best seen in  FIGS.  24 - 27   ) and the hinge connection  300   b  can be “opened” and “closed” (by unzipping and zipping the two mateable halves  332   b ,  334   b  of the “hinge” spanning yoke openable-closeable connection  330   b ). The third distinction is that the spanning yoke  320   b  is preferably (although not mandatorily) securable to the face  201   b  of the container  200   b  (best seen secured in  FIGS.  28 - 29   ) by, for example, “opening” (unzipping) and “closing” (zipping) two mateable halves  342   b ,  344   b  of the “flap” spanning yoke openable-closeable connection  340   b . Opening or disconnecting the two mateable halves  332   b ,  334   b  of the “hinge” spanning yoke openable-closeable connection  330   b  and opening or disconnecting the two mateable halves  342   b ,  344   b  of the “flap” spanning yoke openable-closeable connection  340   b  frees the spanning yoke  320   b  so that the convertible carrying case can expand into the saddlebag configuration. 
     The conversion between the briefcase configuration and the backpack configuration is similar to the conversion of the first exemplary convertible carrying case ( FIGS.  1 - 20   ). For the conversion between the briefcase configuration and the backpack configuration, the spanning yoke  320   b  would be secured against the face  210   b  of the container  200   b . The hinge connection  300   b  would be “closed” with the two mateable halves  332   b ,  334   b  mated. The openable-closeable connection  400   b  would be “opened” (separating the half  410   b  from the half  420   b  by, for example, unzipping). The containers  100   b ,  200   b  would then rotate apart about the longitudinal hinge connection  300   b  as shown, for example, in  FIG.  28   . Before, after, or during the steps associated with the containers  100   b ,  200   b  rotating about the longitudinal hinge connection  300   b , the direction of the extensions  500   b  “flips” between the faces  110   b ,  120   b ,  210   b ,  220   b  such that the extensions  500   b  point towards the internal faces so that the associated connections span between the containers  100   b ,  200   b . The openable-closeable connection  400   b  would be “closed” (bringing together the half  410   b  and the half  420   b  by, for example, zipping). 
       FIGS.  24 - 25    show an exemplary conversion between the briefcase configuration and the saddlebag configuration and  FIG.  26    shows an exemplary saddlebag configuration with the spanning yoke  320   b  fully extended. For this conversion, the mateable halves of the openable-closeable connections are opened or disconnected as follows: the two mateable halves  410   b ,  420   b  of the openable-closeable connection  400   b  are opened or disconnected; the two mateable halves  332   b ,  334   b  of the “hinge” spanning yoke openable-closeable connection  330   b  are opened or disconnected; and the two mateable halves  342   b ,  344   b  of the “flap” spanning yoke openable-closeable connection  340   b  are opened or disconnected. This opening or disconnecting may be done in conjunction with the separating (distancing or pulling apart) of the two containers  100   b ,  200   b . In the saddlebag configuration the interior of the containers  100   b ,  200   b  are accessible through the respective access structure  122   b ,  222   b.    
     To return to either the backpack or the briefcase configurations, the two mateable halves  332   b ,  334   b  of the “hinge” spanning yoke openable-closeable connection  330   b  are closed or connected and the two mateable halves  342   b ,  344   b  of the “flap” spanning yoke openable-closeable connection  340   b  are closed or connected.  FIG.  27    shows attachment guide lines representing how the spanning yoke  320   b  could be re-secured. This return to the backpack or the briefcase configurations may be done in conjunction with the bringing together and/or rotation of the two containers  100   b ,  200   b.    
     Distinctions from Known Convertible Carrying Cases: 
     U.S. Published Application No. 2003/0042277 to Gulmatico, U.S. Pat. No. 4,236,657 to Brunton, U.S. Pat. No. 2,493,506 to Schwartbard, U.S. Pat. No. 2,010,166 to Thompson, and the Tumi Dror reference were discussed in the Background. These references are discussed as examples of prior art. The convertible carrying cases disclosed herein have both physical distinctions and functional distinctions. For the purpose of illustrating exemplary distinctions, these references are being discussed and distinguished. It should be noted that not all the distinctions for each reference are being provided for each reference. 
     The convertible carrying cases disclosed herein have both a first and a second container. Each container has a primary face and a secondary face that at least partially surrounds an interior of the respective container. Each face has its own respective access structure for accessing the interior of the respective container. When the primary faces are on the exterior of the convertible carrying case (the primary configuration), the interior of the first container is accessible through the access structure of its primary face and the interior of the second container is accessible through the access structure of its primary face. When the secondary faces are on the exterior of the convertible carrying case (the secondary configuration), the interior of the first container is accessible through the access structure of its secondary face and the interior of the second container is accessible through the access structure of its secondary face. The use of annular extensions surrounding the containers (the extensions “flipping” during conversion between configurations) allows the creation of an additional compartment between the two containers. The conversion between the primary configuration and secondary configuration may be made by, for example, rotating the containers about a longitudinal hinge connection. The process of conversion does not necessitate the removal or rearrangement of the contents of the containers and the contents remain accessible in either configuration. 
     Among the distinctions between the convertible carrying case disclosed herein and the convertible carrying case disclosed in U.S. Published Application No. 2003/0042277 to Gulmatico is the fact that the harness pouch and the main elongated bag share a common face or panel. This makes it impossible for Gulmatico “containers” to rotate about a longitudinal hinge connection. The common face or panel also does not have any access structure. 
     Among the distinctions between the convertible carrying case disclosed herein and the convertible carrying case disclosed in U.S. Pat. No. 4,236,657 to Brunton, is the absence in the Brunton convertible carrying case of access structure associated with each “face” of the Brunton “containers.” Further, because one container effectively wraps around the other container, the containers do not appear to be accessible in all configurations. 
     Among the distinctions between the convertible carrying case disclosed herein and the convertible carrying case disclosed in U.S. Pat. No. 2,493,506 to Schwartbard, is the absence in the Schwartbard convertible carrying case of access structure associated with each “face” of the Schwartbard “containers” (handbag portions). Schwartbard specifically discloses that each handbag portion has a single opening that remains “on top” so that it is accessible in either configuration. This is significant because it limits the types of containers and configurations that could be used. For example, since the single opening would have to be on the top, both configurations would have to be oriented horizontally or both configurations would have to be oriented vertically. There could not be one configuration oriented vertically and one configuration oriented horizontally. 
     In the broadest sense, the distinctions between the convertible carrying case disclosed herein and the convertible carrying case disclosed in U.S. Pat. No. 2,010,166 to Thompson are similar to those discussed in relation to the Schwartbard reference. Theoretically, after the hood member has been removed, the Thompson golf bag can be inverted to carry with the golf club pockets on the inside or the outside. It does not seem particularly practical to carry golf clubs in the golf club pockets on the inside except when it is being stored with the hood member. The golf club pockets have a single opening through which the golf clubs may be inserted or removed regardless of the configuration of the golf bag. 
     The “brief” in the Tumi Dror Benshetrit line is “two cases in one” in that it transforms from a slim portfolio to a medium capacity brief. This transformation is accomplished by unzipping and inverting two “sides” to change shape and functionality. The “brief” has two “sides.” The two “sides” rotate around a hinge connection to change configurations. The sides appear to have at least some pockets or pouches associated therewith. Each pocket or pouch, however, only has one opening or access structure. Accordingly, when the “brief” is in the slim portfolio configuration, the pockets on the inside can only be accessed by at least partially separating the “sides” and accessing the pockets therethrough. Similarly, when the “brief” is in the medium capacity brief configuration, the pockets on the inside can only be accessed by at least partially separating the “sides” and accessing the pockets therethrough. There are no pockets or other structure that could be equivalent to the containers of the convertible carrying case disclosed herein that have multiple access structures and thus are accessible in multiple configurations. 
     Miscellaneous: 
     It is to be understood that the inventions, examples, and embodiments described herein are not limited to particularly exemplified materials, methods, and/or structures. It is to be understood that the inventions, examples, and embodiments described herein are to be considered preferred inventions, examples, and embodiments whether specifically identified as such or not. 
     All references (including, but not limited to, foreign and/or domestic publications, patents, and patent applications) cited herein, whether supra or infra, are hereby incorporated by reference in their entirety. 
     The terms and expressions that have been employed in the foregoing specification are used as terms of description and not of limitation, and are not intended to exclude equivalents of the features shown and described. While the above is a complete description of selected embodiments of the present invention, it is possible to practice the invention using various alternatives, modifications, adaptations, variations, and/or combinations and their equivalents. It will be appreciated by those of ordinary skill in the art that any arrangement that is calculated to achieve the same purpose may be substituted for the specific embodiment shown. It is also to be understood that the following paragraph is intended to cover all of the generic and specific features of the invention herein described and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.