Patent Publication Number: US-7900757-B2

Title: Carrying bag having a detachable bottom portion

Description:
BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     Embodiments of the present invention relate generally to carrying bags. More particularly, embodiments of the present invention relate to multi-portion carrying bags having at least a top portion and a detachable bottom portion. 
     2. Description of the Related Art 
     Many types of carrying or tote bags are known in the art. Carrying bags are traditionally used to carry and keep within arm&#39;s reach a wide range of items that may be needed or used numerous times during the course of a day. Typical items commonly carried in a carrying bag may include items for children and adults such as: diapers, toys, food and snacks, clothing, shoes, books, portable electronics such as a DVD player, DVDs and other baby or child-related items, and cosmetics, beauty aids, automobile and house keys, travel or airline tickets, pens and notepads, cellular telephones, checkbooks, personal data assistants (PDAs), wallets, money, credit cards, sporting equipment and other useful adult items. One problem frequently associated with carrying so many items of diverse sizes and shapes is that it becomes difficult to quickly or easily find a particular desired item within the single storage enclosure that is typical of most carrying bags. This is because the items are usually layered on top of one another in a bucket-like area in the middle or interior of the bag resulting in the desired item being hidden underneath others. 
     Further, because there is typically no way to organize the items in the bucket-like area of the bag, the items constantly shift and commingle with one another during use of the bag. This is typical of existing pocketbooks, knap sacks, back packs, tote bags, etc. To help a user organize items within existing carrying bags, smaller bags are typically used to store snacks and food, insulated bags may be used to store drinks, “diaper pods” may be used to hold baby changing items and accessory cases may be used for cosmetics, etc. When all of these smaller bags are placed and carried within the bucket-like portion of the main bag together with other larger necessary items, it becomes difficult to find desired items because the smaller bags as well as the loose items not contained in the smaller bags, inevitably become commingled with and layered on top of each other, making it just as difficult to find a desired item quickly or easily. 
     Take, for example, a diaper bag. A problem with existing diaper bags is that they typically do not separate large bulkier items that are necessary for travel with a child, from smaller items, such as pacifiers, bags of snacks, spoons, straws, bottles, sippy cups, canisters of powdered formula, a child&#39;s socks and shoes, and the caregiver or user&#39;s PDAs, cell phones, keys, wallets, checkbooks, passports, etc. Although existing bags include side pockets on the interior or exterior walls, these pockets do not solve this problem because of the number of items necessary to carry at once and because the pockets are usually too small, too narrow, too full or are open at the top such that items within those pockets fall out into the bucket-like portion of the bag when in use or when the bag is turned over, dropped, knocked down, etc. 
     Traveling with an infant or small child, even if only to the local store, requires having an overwhelming amount of items, which may include many, if not all, of the items previously discussed, on hand and readily available. Accordingly, existing carrying or diaper bags become bulky and cumbersome. If, for example, the child&#39;s diaper needs to be changed, the bulky and cumbersome diaper bag is usually brought with the child and caregiver to the changing area that is typically found in a public restroom. These changing areas are typically narrow, busy and often dirty and hence, managing a heavy over stuffed carrying or diaper bag together with an infant or child, becomes cumbersome and problematic. An alternative for users of typical diaper or carrying bags has been to leave the entire carrying or diaper bag behind but not before pulling out of it a “diaper pod” or accessory bag that contains only the necessities for a diaper change such as, diapers, wipes, creams and a changing pad, or if a “diaper pod” or accessory bag was not used, separately finding and pulling out all of the changing items and juggling these separate items with the child while traveling to and from the changing area. 
     Another situation where current diaper or carrying bags are deficient is when traveling with an infant or small child on an airplane. Typically, a diaper or carrying bag is carried onto an airplane with the caregiver or user. Because of the necessity of having everything accessible to a user that may possibly be needed during the flight, regardless of its duration, including items such as books, games and portable electronic devices such as DVD players to occupy the child; pacifiers, stuffed animals, books and blankets to pacify the child; or food, bottles, diapers, etc., to care for the child, these bags often become large and cumbersome making it difficult to stow these bags under an airplane seat. Accordingly, the entire tote or diaper bag must typically be stowed in an overhead compartment. This is problematic because of the numerous times a user must go into a diaper bag to retrieve necessary items to either feed, change or otherwise occupy the child (toys, books, DVDs, etc.). The alternative has been to carry two or more smaller bags onto the airplane and constantly shift items between the two, which is burdensome both because of the need to carry multiple bags with the child together with checked luggage, and because the items become commingled between the two bags making it difficult for a user to keep track of which items are where. 
     Examples of existing carrying or tote bags include U.S. Pat. No. 2,672,903 to Machinist (the “&#39;903 patent”) and U.S. Pat. No. 5,209,279 to Wilson (the “&#39;279 patent”). The &#39;903 patent is directed to a duplex handbag having two units—a first unit and a second unit. The first unit comprises an entire handbag that may be used independently of the second unit. The second unit comprises an auxiliary handbag detachably secured to the first unit. The second unit attaches to the bottom of the first unit in a hanging or dependent fashion and is closed at the bottom and sides but open at the top. Because the second unit is open at its top end, the bottom wall of the first unit to which the second unit is attached, serves as the closure for the top of the second unit. There is no means provided for closing the top end of the second unit when it is detached from the first unit. 
     Disadvantageously, because the second unit&#39;s access is only through its open top, in order for a person to access the second unit&#39;s interior, the second unit must be detached from the first unit. Further, because the second unit is opened at its top end while attached to the first unit, detaching the second unit can result in items contained therein, falling out or becoming displaced. Additional disadvantages with the second unit having an open top while attached and detached from the first unit is: (1) the second unit cannot function as a stand-alone unit that can be detached and stowed away with items contained therein; and (2) the mechanisms to attach the first and second units to one another cannot be located on the bottom and top surfaces of the top and bottom units, respectively. Having the attachment mechanisms located interiorly between the two units (i.e. on the bottom and top surfaces), is advantageous because, in this configuration, the mechanisms will be substantially concealed and there is less of an opportunity for the units to become inadvertently detached from one another. 
     Another disadvantage with the bag of the &#39;903 patent is the length of time it may take to attach and detach the first and second units. The first and second units attach to one another by way of a plurality of individual fastening elements. Therefore, to detach the units from one another each fastening element must be undone separately, which is time consuming. Further, to attach the first and second units together, each portion of the fastening elements (i.e. the portion on the first unit and the portion on the second unit) must be separately aligned and fastened together, which is also time consuming and requires use of both hands. Accordingly, attachment and detachment of the first and second units of the &#39;903 lacks speed and efficiency. 
     The &#39;279 patent is directed to a dual unit handbag having a top compartment and a removable lower compartment. The top compartment is connected to the bottom compartment by a suitable connection means such as a zipper. While attached to the top compartment, the bottom compartment remains open at its top. The bottom compartment having an open top while attached to the top compartment is disadvantageous for a few reasons. First, for example, if the bottom compartment inadvertently becomes either partially or fully detached from the top compartment, items contained therein can fall out and become lost. Second, because the bottom compartment remains open at its top during attachment to the top compartment, it may be awkward to maneuver the bottom compartment during the top and bottom compartment attachment process. For example, a person trying to align the zipper elements of the top and bottom compartments may find it difficult to achieve proper alignment without moving the bottom compartment into a position that may result in items within the bottom compartment falling out of the bottom compartment or getting in the way during zipper alignment. Another disadvantage of the bottom compartment remaining open at its top end during attachment to the top compartment is similar to that described above for the &#39;903 patent, namely, the mechanisms to attach the compartments to one another cannot be located on the bottom and top surfaces of the top and bottom compartments, respectively, which is disadvantageous for the reasons discussed above. 
     A further disadvantage with the handbag of the &#39;279 patent is that there is no way to gain access to the contents contained within the bottom compartment other than through its open top. Accordingly, if a person wants to add or remove an item to/from the bottom compartment, a user must at least partially disconnect or unzip the connection means between the two compartments. This can be problematic because items can fall out of the bottom compartment during this process. A further disadvantage with the handbag of the &#39;279 patent is with the use of a zipper as the attachment mechanism between the top and bottom compartments. Because a zipper is the attachment mechanism between the top and bottom compartments, much loading and thus stress is exerted on the zipper from the weight of the items contained in the bottom compartment. Accordingly, the zipper may open up during use or even prematurely fail resulting in a bag that does not achieve its intended purpose. Further, attaching the top and bottom compartments together with a zipper when the bottom compartment is completely detached may be problematic. For example, if the bag is being used as an infant or child carrying bag, it may be impossible to attach the two compartments together. Usually, a person with a child only has one hand available to do things as the other hand is being used to hold the child. Therefore, aligning and engaging the two separate components of the zipper with a single hand may be very difficult, if not impossible and time consuming. 
     Accordingly, a need exists to provide an alternative to current carrying or tote bags. More specifically, a need exists for a carrying bag that can easily organize a plurality of small and large items such that a user may easily and more quickly locate desired items contained within the carrying bag. Furthermore, there is a need for a carrying bag that allows a user to separate larger bulkier items from smaller items and in which a user can easily detach the portion containing the larger bulkier items from the portion containing the smaller items. 
     SUMMARY OF THE INVENTION 
     For the reasons included above, it is therefore a principal object of embodiments of the present invention to provide a carrying bag in which a user can organize a plurality of small and large items such that the user may easily and more quickly locate desired items contained therein. 
     It is a further object of embodiments of the present invention to provide a carrying bag that allows a user to separate smaller items from larger, bulkier items. 
     Yet another object of embodiments of the present invention is to provide a carrying bag that is separated into at least a top portion and a bottom portion. 
     A further object of embodiments of the present invention is to provide a carrying bag that is separated into at least a top portion and a bottom portion where the top portion may be used to carry smaller and necessary items and the bottom portion may be used to carry larger items. 
     A still further object of embodiments of the present invention is to provide a carrying bag having at least a top portion and a bottom portion that prevents commingling of items. 
     A further object of embodiments of the present invention is to provide a carrying bag that is separated into at least a top portion and a bottom portion where the bottom portion is detachable from the top portion. 
     Yet another object of embodiments of the present invention is to provide a carrying bag that is separated into a fully enclosed top portion and a fully enclosed detachable bottom portion that allows a user to use the top portion and the bottom portion independently of one another whether or not they are attached to one another. 
     Another object of embodiments of the present invention is to provide a carrying bag that is separated into at least a top portion and a fully enclosed bottom portion where the bottom portion can act as a self-contained bag. 
     A still further object of embodiments of the present invention is to provide a carrying bag that is separated into at least a top portion and a fully enclosed bottom portion where the bottom portion can be detached from the top portion such that the bottom portion can be stowed separately. 
     Yet another object of embodiments of the present invention is to provide a carrying bag, which includes a structure that allows a user to further organize smaller items contained therein. 
     A further object of embodiments of the present invention is to provide a carrying bag having at least a top portion, which includes a removable structure that divides the top portion into at least two distinct sides or areas with each side being color coded allowing a caregiver or user to easily identify, for example, a child side and a caregiver side. 
     These and other objects and advantages are provided by the instant invention. In this regard, the present invention is directed to a carrying bag having a top portion with at least two side walls, a closable top, a closed bottom having an exterior bottom surface and an interior top compartment, a detachable bottom portion with at least two side walls, a closed top having an exterior top surface, a closed bottom, an interior bottom compartment and at least one access opening into the interior bottom compartment, and a compartmentalized structure having a plurality of individual compartments. In order to attach the top and bottom portions together, a means for attaching the portions together comprising a first component and a second component attached to the top and bottom portions of the bag  2  is included. 
     In one embodiment, the means for attaching the top and bottom portions together may be a track system where the first and second components are male and female tracks that have corresponding geometries, which slidingly engage one another. In another embodiment, the first component may be a female track and the second component may comprise at least on post-type male element that slidingly engages the female track. In a further embodiment, the first component may be a shaped opening and the second component may be a locking member having a complementary shape to that of the shaped opening such that it can be received and rotated within the shaped opening, thereby joining the top and bottom portions of the carrying bag together. In order to conceal the juncture between the top portion and the bottom portion of the carrying bag, an apron may be included. 
     The compartmentalized structure, which may be included in the top or bottom portion, may be removably attached to the top or bottom portion by way of an attaching device or a means for attaching such as, for example, a track system, snaps, zippers, buttons and hook and loop fasteners. In one embodiment, the compartmentalized structure may be positioned within the top portion of the bag such that the interior top compartment is divided into two separate and distinct areas—one area is located between the compartmentalized structure and one side wall of the top portion and the other area is located between the compartmentalized structure and the other side wall of the top portion. The two separate and distinct areas on either side of the compartmentalized structure can be used to store, for example, baby or child items on one side and caregiver or user items on the other side. In order to allow a user to quickly identify which distinct area is for the caregiver or user and which is for the baby or child, each area can be a different color. 
     The various features of novelty which characterize the invention are pointed out in particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and specific objects attained by its uses, reference is made to the accompanying descriptive matter in which preferred embodiments of the invention are illustrated in the accompanying drawings. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Preferred features of the present invention are disclosed in the accompanying drawings, wherein similar reference characters denote similar elements throughout the several views, and wherein: 
         FIG. 1A  is a front perspective view of a carrying bag with its top open, according to one embodiment of the present invention; 
         FIG. 1B  is a front perspective view of a carrying bag with its top closed, according to one embodiment of the present invention; 
         FIG. 1C  is a front perspective view from below of a carrying bag, according to one embodiment of the present invention; 
         FIG. 2  is a top plan view of a carrying bag with its top open, according to one embodiment of the present invention; 
         FIG. 3A  is an exploded front perspective view of a carrying bag with the top portion detached from the bottom portion, according to one embodiment of the present invention; 
         FIG. 3B  is an exploded front perspective view of a carrying bag with the top portion detached from the bottom portion, according to one embodiment of the present invention; 
         FIG. 3C  is an exploded front perspective view of a carrying bag with the top portion detached from the bottom portion, according to one embodiment of the present invention; 
         FIG. 3D  is an exploded front perspective view of a carrying bag with the top portion detached from the bottom portion, according to one embodiment of the present invention; 
         FIG. 3E  is an exploded front perspective view of a carrying bag with the top portion detached from the bottom portion, according to one embodiment of the present invention; 
         FIG. 3F  is an exploded front perspective view of a carrying bag with the top portion detached from the bottom portion, according to one embodiment of the present invention; 
         FIG. 4A  is a front perspective view of a compartmentalized structure, according to one embodiment of the present invention; 
         FIG. 4B  is a front perspective view of a compartmentalized structure, according to one embodiment of the present invention; 
         FIG. 4C  is a front perspective view of a compartmentalized structure, according to one embodiment of the present invention; 
         FIG. 5A  is a front perspective view of a carrying bag with its compartmentalized structure partially removed, according to one embodiment of the present invention; 
         FIG. 5B  is a front perspective view of a carrying bag with its compartmentalized structure partially removed, according to one embodiment of the present invention; 
         FIG. 5C  is a front perspective view of an open bottom portion of the carrying bag, according to one embodiment of the present invention; 
         FIG. 6A  is a front perspective view of the bottom portion of the carrying bag depicted in the previous figures; 
         FIG. 6B  is a front perspective view of an open bottom portion of the carrying bag depicted in the previous figures; 
         FIG. 6C  is a bottom perspective view of the bottom portion of the carrying bag depicted in the previous figures; 
         FIG. 7  is a front perspective view of the carrying bag depicted in the previous figures showing an open bottom portion with the top portion of the bag still attached to the bottom portion; 
         FIG. 8A  is a bottom perspective view of the top portion of the carrying bag depicted in the previous figures showing a means for attaching the top portion and the bottom portion of the carrying bag to one another, according to one embodiment of the present invention; 
         FIG. 8B  is a front perspective view of the bottom portion of the carrying bag depicted in the previous figures showing a means for attaching the top portion and the bottom portion of the carrying bag to one another, according to one embodiment of the present invention; 
         FIG. 8C  is a side plan view of a carrying bag, according to one embodiment of the present invention; 
         FIG. 9A  is a side plan view showing the geometry of a track system used in a carrying bag, according to one embodiment of the present invention; 
         FIG. 9B  is a side plan view showing the geometry of a track system used in a carrying bag, according to one embodiment of the present invention; 
         FIG. 9C  is a front perspective view of a track locking device, according to one embodiment of the present invention; 
         FIG. 10  is a side plan view of a track system used in a carrying bag, according to on embodiment of the present invention; 
         FIG. 11  is a front perspective view of a track system used in a carrying bag, according to one embodiment of the present invention; 
         FIG. 12  is a side plan view of a carrying bag, according to one embodiment of the present invention; 
         FIG. 13  is a front perspective view a track system used in a carrying bag, according to one embodiment of the present invention; 
         FIG. 14A  is a bottom perspective view of the top portion of the carrying bag depicted in the previous figures showing a means for attaching the top portion and the bottom portion of the carrying bag to one another, according to one embodiment of the present invention; 
         FIG. 14B  is a front perspective view of the bottom portion of the carrying bag depicted in the previous figures showing a means for attaching the top portion and the bottom portion of the carrying bag to one another, according to one embodiment of the present invention; 
         FIG. 15  is a front plan view of a carrying bag, according to one embodiment of the present invention; 
         FIG. 16  is a front plan view of a carrying bag, according to one embodiment of the present invention; 
         FIG. 17A  is a front plan view of a carrying bag, according to one embodiment of the present invention; and 
         FIG. 17B  is a front plan view of a carrying bag, according to one embodiment of the present invention. 
     
    
    
     DESCRIPTION 
     The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the illustrated embodiments set forth herein. Rather, these illustrated embodiments are provided so that this disclosure will be thorough and complete and will fully convey the scope of the invention to those skilled in the art. 
     In the following description, like reference characters designate like or corresponding parts throughout the figures. Additionally, in the following description, it is understood that terms such as “top,” “bottom,” “upper,” “lower,” “first,” “second,” and the like, are words of convenience and are not to be construed as limiting terms. 
     Embodiments of the present invention are directed to multi-portion carrying or tote bags having a top portion and a fully detachable bottom portion. As used herein, the terms “carrying bag,” “tote,” “tote bag” and “bag,” and “user,” caregiver” and “person,” are used interchangeably. The present carrying bags can be made of a durable material, such as canvas, nylon, vinyl, leather, or any other materials or fabrics known in the art that are suitable for making such a bag. It is also possible for the present carrying bag to be made from a combination of materials having different properties such as strength, softness, insulating characteristics, waterproof characteristics, etc. Preferably, the present invention can be used as a tote bag to carry and organize items for an infant or child, such as diapers and creams, children&#39;s clothes, shoes, pacifiers, baby formula, baby food, snacks, bottles, sippy cups, blankets, toys, stuffed animals, books, electronic equipment such as a DVD player, DVDs as well as items for the child&#39;s caregiver, for example, PDAs, cell phones, keys, wallets, check books and the like. Accordingly, the present invention will now be described as a carrying bag for carrying baby and child items, however, it may be embodied as a handbag, travel bag, gym bag, sports bag for use in all types of sports such as, for example, baseball, softball, football, soccer, bowling, golf, fishing, etc, or other carrying or tote bag. 
     The present invention addresses the previously discussed problems associated with existing carrying or tote bags that are used to carry a multitude of small and large items, by separating the larger bulkier items from the smaller items and then further organizing the smaller items into individual compartments designed for specific or key items. Accordingly, as depicted in  FIGS. 1A-1C , in one embodiment, the present carrying bag  2  comprises at least three major components: a top portion  4 ; a detachable bottom portion  6 ; and a compartmentalized structure  8  located within the top portion  4 . The carrying bag  2  also includes at least one, and more preferably two, carrying straps  10  that can be handheld or over-the-shoulder straps and may, in another embodiment, even be back-pack type straps. Further, an apron  12  may be included on the exterior of the bag  2  at the junction between the top portion  4  and the detachable bottom portion  6 . 
     As can be seen in the figures, and more specifically  FIG. 2 , the top portion  4  has at least two side walls  14 , two end portions  16 , a closed bottom  18 , and an open top  20  that provides access to a large open interior compartment or bucket portion  21  in which the compartmentalized structure  8  is disposed. In order to close the open top  20 , a closure device  22  or means for opening and closing the open top  20 , such as, for example, a zipper, is provided. The zipper  22  may be a one way zipper opening from a single end of the top portion  4  or it may be a two way zipper opening from each end of the top portion  4 . As will be readily apparent to those skilled in the art, other types of closure devices or means for opening and closing the open top  20  such as hook and loop fasteners (VELCRO®), snaps, buttons, clasps, etc., may be used to close the open top  20 . The interior compartment or bucket portion  21  may also include pockets  24  of various sizes, shapes and materials (canvas, nylon, netting, mesh, micro fiber, plastic, etc.), attached to the interior surfaces of the side walls  14 . These pockets  24  are designed to further organize smaller items such as pacifiers, keys, cell phones, wallets, medicine, etc., and may include closure devices such as zippers, snaps, buttons, hook and loop fasteners (VELCRO®) or any other suitable closure device known in the art or, the pockets  24  may be elastic, in order to prevent the items contained therein from falling out and becoming commingled. 
     As depicted in  FIGS. 4A-4C , the compartmentalized structure  8  comprises a bottom  26 , a top cover or lid  28  and a plurality of walls or partitions  30 , which form a plurality of individual compartments  32 . The bottom  26 , top cover or lid  28  and walls or partitions  30 , may be formed from a substantially rigid material such as, for example, plastic, etc., which may or may not include a covering material such as canvas, nylon, vinyl, micro fiber, leather, etc. The covering material may be waterproof and may include an antimicrobial coating. The compartmentalized structure  8  can be designed to have any number and configuration of individual compartments  32  to hold and store items such as diapers, wipes, creams, a change of clothes, etc. Depicted in  FIGS. 4A-4C  are but two examples of compartmentalized structure  8  configurations. As will be readily apparent to those skilled in the art, the compartmentalized structure  8  can be of numerous configurations. In addition, one or more of the individual compartments  32  may be designated as a food compartment and may include an insulating material  34  to keep bottles warm or food and drinks cold. The top cover or lid  28  may be subdivided so that particular portions of the compartmentalized structure  8 , such as the insulated compartment(s)  36 , can be opened and closed independently from the other compartments  32 . The subdivided cover or lid  28  may include a closure device  35 , such as, for example, a zipper to allow portions of the cover  28  to be opened and closed independently of the other portions of the lid  28 . Other closure devices such as a latch-type mechanism  37  may also be used. The insulated compartments  36  should be large enough both in their width and depth to hold capped baby bottles, sippy cups, food and other items requiring thermal insulation. The individual compartments  32  may also include loops or pockets of material, insulating material, mesh or netting  38 , which may be elastic, to hold utensils, straws and other small items. 
     The individual compartments  32  may also include item identifiers  39  such as, for example, item names, words, phrases, symbols, pictures and drawings (i.e. a compartment designed to hold a bottle may include a picture or bottle design and a compartment designed to hold food may include a picture or a design depicting cherries, bananas, grapes, or the like). The item identifiers  39  may be of any design type and may be, for example, sewn on, embroidered or they may be patches, and will typically be included on the top cover or lid  28  to allow a user to easily identify which compartments  32  contain which items. These item identifiers may also be included on any of the carrying bag&#39;s pockets. 
     In one embodiment, the compartmentalized structure  8  may be disposed lengthwise down the middle of the top portion  4  thereby separating the interior compartment or bucket portion  21  into two distinct areas  40  as shown in  FIG. 2 . In this configuration, smaller items, such as pacifiers, may be included in the pockets  24  along the interior walls of the top portion  4  and larger items such as stuffed animals, books, toys, baby blankets, etc., which have been removed from the bottom portion  6  for use, may be temporarily stored in the areas  40  between the compartmentalized structure  8  and the side walls  14  of the top portion  4 . Also in this configuration, the pockets  24  and area  40  on one side of the top portion  4  may be dedicated to baby or child items while the pockets  24  and area  40  on the other side of the top portion  4  may be dedicated to caregiver or user items such as a wallet, keys, cell phone, etc., thereby further organizing and preventing commingling of the baby or child items with the caregiver&#39;s items. If the top portion  4  is separated into two distinct sides, one for a baby or child and the other for a caregiver, different color material or materials having a texture, may be used for the interior portions of each side  40  of the bag  2  in order to help a user quickly identify which side of the bag  2  is the child side and which side of the bag is the user or caregiver side. For example, the child side may be color coded pink and the caregiver side may be color coded red. Additional compartmentalized structures  8  may be added to alter the configuration of the top portion&#39;s  4  open area or bucket portion. 
     In one embodiment, as depicted, for example in  FIG. 3A , the compartmentalized structure  8  may be removably attached to the interior of the top portion  4  by way of a track system  41 , similar to that disclosed below. Accordingly, as depicted in  FIG. 5A , a first component  42  of the track system  41  may be attached to each end  44  (shown in  FIGS. 4A-4C ) of the compartmentalized structure  8  and the corresponding second component  46  of the track system may be attached to the interior of each end portion  16  of the top portion  4  of the carrying bag  2 , thereby allowing a user to simply slide the compartmentalized structure  8  in and out of the top portion  4 . As depicted in  FIG. 5B , a plurality of substantially parallel first  42  and second  46  track components may be used to removably attach the compartmentalized structure  8  to the interior of the top portion  4 . Because, as depicted in the figures, embodiments of the present invention may include a top portion  4  of the bag  2  that is trapezoidal-shaped, a triangular-shaped extension of material may be included on each end portion  16  on the interior of the top portion  4  of the bag  2  such that the first  42  and second  46  track components may be parallel to and aligned with each other. 
     As depicted in  FIGS. 3B-3F , additional means for removably attaching the compartmentalized structure  8  to the top portion  4  such as snaps  41   a , buttons  41   b , zippers  41   c , hook and loop fasteners (VELCRO®)  41   e , magnets  41   f , or the like, may also be used. For example, in the embodiment depicted in the figures where the compartmentalized structure  8  is disposed lengthwise down the middle of the top portion  4 , one component of the means for attaching may be included on the bottom and sides of the compartmentalized structure  8  and the corresponding component of the means for attaching may be included on the closed bottom  18  and interior end portions  16  of the top portion  4 . Removably attaching the compartmentalized structure  8  to the top portion  4 , allows a user the ability to remove the compartmentalized structure  8  to, for example, clean it or use it separately from the bag  2 . 
     Further, in one embodiment, the compartmentalized structure  8  may be attached or disposed within the top portion  4  such that items contained within the areas  40  on each side of the structure  8 , are prevented from migrating from the area  40  on one side of the structure  8  to the area  40  on the other side of the structure  8 . Accordingly, commingling of caregiver and child items is prevented. This can be achieved either by attaching the compartmentalized structure  8  to the interior surface of the top portion&#39;s  4  closed bottom  18  and end portions  16  or otherwise assuring that there are no gaps or spaces between the structure  8  and the interior surfaces of the top portion  4  for the items to pass through. Additionally, the compartmentalized structure  8  may be disposed within a partial or full pocket, which may be sewn or otherwise attached to the interior surface of the top portion&#39;s  4  closed bottom  18  and the interior surfaces of the end portions  16  such that there are no gaps or spaces between the structure  8  and the interior surfaces of the top portion  4 . As will be readily apparent to those skilled in the art, as depicted in  FIG. 5C , the compartmentalized structure  8  may also be included in the bottom portion  6  of the carrying bag  2 . Accordingly, the above disclosures related to the compartmentalized structure  8  being disposed in the top portion  4  is also applicable to embodiments of the present invention where the compartmentalized structure  8  is disposed in the bottom portion  6 . 
     Turning now to the bottom portion  6 , as can be seen in, for example,  FIGS. 3 ,  6 A,  6 B and  6 C, the bottom portion  6  is a completely enclosed integral structure comprising at least two side walls  48 , a closed top  50 , a closed bottom  52 , and a large interior compartment or bucket portion  54  used to store large bulky items such as blankets, shoes, jackets, stuffed animals, books and the like. To help further organize items contained within the bottom portion  6 , at least one pocket  56  may be included on the interior of the side walls  48  that may be made of a mesh or other material. In order to permit access to the interior compartment  54  of the bottom portion  6 , closure device  60  or means for opening and closing the interior compartment  54 , such as a zipper (which may be a one or two way zipper), defining an access opening, is provided. As will be readily apparent to those skilled in the art, additional closure devices may include, but are not limited to, snaps, buttons, clasps and hook and loop fasteners (VELCRO®). As can be seen in the embodiments depicted in the figures, it is preferable that the closure device  60  and access opening extend for a distance around the perimeter of the bottom portion  6  that allows a user easy access to the interior compartment  54 . For example, the access opening and closure device  60  may extend approximately ¾ of the way around the perimeter of the bottom portion  6 . An access opening and closure device  60  extending over this distance, allows a user easy access to the interior compartment  54  of the bottom potion  6  to add and remove the large bulky items. Further, as depicted in  FIG. 7 , an access opening and closure device  60  that extends, for example, approximately ¾ of the way around the perimeter of the bottom portion  6  also allows a user to completely open or undo the zipper or closure device  60  and fold the top portion  4  of the bag  2  over and back with the top portion  4  still attached to the bottom portion  6  thereby exposing the interior compartment  54  of the bottom portion  6 , giving a user full access to the interior compartment  54  without detaching the top portion  4  from the bottom portion  6 . 
     To help reinforce the bottom portion  6 , as shown in  FIG. 6C , a reinforcing material  62  such as rubber, plastic or the like, may be included on the closed bottom  52 . The reinforcing material  62  may be included on the closed bottom&#39;s  52  exterior surface, interior surface or both, and may be a single strip of material, multiple strips of material or it may completely cover the interior or exterior bottom surfaces. Further, “feet” or supports  64  may be included on the exterior surface of the closed bottom  52  such that the “feet”  64  support the bottom portion  6  when the bag  2  is not being carried. To make transporting the carrying bag  2  easier and more manageable for a user, wheels, which may be retractable or foldable, may be included on the bottom portion  6  and a handle, which may also be retractable, may be included on the top portion  4  and/or bottom portion  6 . 
     As previously disclosed, the bottom portion  6  is detachable from the top portion  4  of the carrying bag  2 .  FIGS. 8A ,  8 B and  8 C depict one embodiment of an attaching device or means for detachably joining or connecting the top portion  4  of the carrying bag  2  to the bottom portion  6 . As can be seen in the figures, the attaching device or means for detachably joining or connecting the top portion  4  of the carrying bag  2  to the bottom portion  6  is a track system  65  that includes male  66  and female  68  tracks or components. Sample track cross-sections are depicted in  FIGS. 9A and 9B . As will be readily apparent to those skilled in the art, any track cross-section that allows the tracks to slidingly engage one another, may be used. 
     As shown in  FIGS. 3 ,  8 A,  8 B and  8 C, for example, one component of the track system  65 , the male track component  66 , for example, may be attached to the exterior bottom surface of the top portion&#39;s  4  closed bottom  18  and the corresponding female track component  68  of the track system may be attached to the exterior top surface of the bottom portion&#39;s  6  closed top  50 . Accordingly, to connect or join the top portion  4  to the bottom portion  6 , a user simply aligns the male  66  and female  68  track components of the track system with each other so the male track  66  is received within the female track  68 , and then slides either the top portion  4  or bottom portion  6  with respect to the other so that the tracks slidingly engage one other, thereby joining the two portions of the carrying bag  2  together. Depicted in  FIG. 8C  is a side view of a bag  2  according to one embodiment of the present invention having a top portion  4  connected to a bottom portion  6  by way of the previously disclosed male  66  and female  68  track components. Although only one set of tracks is depicted in the figures, as shown in  FIG. 10 , a track system  65  comprising a plurality of substantially parallel side-by-side male  66  and female  68  tracks may also be used to join or connect the top portion  4  of the bag  2  to the bottom portion  6 . 
     As depicted in  FIG. 9C , to secure the top portion  4  and the bottom portion  6  in place with respect to one another, a locking device  70  may be included on the track system. The locking device  70  may be, for example, an elastically deformable protrusion  71  on one of the track components, for example, the male track component  66 , that engages a corresponding opening  73  in the other track component, for example, the female track component  68 . When the protrusion  71  on one track component is engaged with the opening  73  in the other track component, movement of the tracks, and hence movement of the top  4  and bottom  6  portions of the carrying bag  2  with respect to one another, is prevented. To unlock the tracks thereby permitting the portions of the bag  2  to slide with respect to one another, the user causes the protrusion  71  of the locking device  70  on one track component to become disengaged from the opening  73  in the other track component. As will be readily apparent to those skilled in the art, any locking device that prevents movement of the track components with respect to each other, may be used. 
     As depicted in  FIG. 11 , another type of track system that may be used to attach the top portion  4  to the bottom portion  6  comprises a female track or component  72  and at least one post-type male element  74 , and more preferably, a plurality of post-type male elements  74 , each having at least a shaft  76  and a head portion  78  that is receivable within the female track  72 , may be used. The female track  72  may be attached to the bottom surface of the top portion&#39;s  4  closed bottom  18  and the post-type element  74  may be attached to the top surface of the bottom portion&#39;s  6  closed top  50 . Similar to the two track attaching device or means for detachably connecting the top portion  4  of the carrying bag  2  to the bottom portion  6  previously disclosed, a locking device may be included to lock the top portion  4  and the bottom portion  6  in place with respect to one another. 
     Preferably, the components of the track systems are made from a substantially rigid, lightweight material such as plastic or aluminum, however, other substantially rigid materials may be used. Further, the components of the track systems may be attached to the top and bottom portions of the bag  2  by way of rivets, screws, or nuts and bolts, or the like, or the components may be sewn directly into the top  4  and bottom  6  portions. In order to allow the top portion  4  and the bottom portion  6  to fit tightly together so there is a minimal gap between the two portions of the bag  2  when they are connected to each other, low profile track components may be used or, as depicted in  FIG. 12 , which is a side view of the bag  2 , one component of the track system may be recessed  80  into one portion of the bag  2  to which it attaches. 
     To further reinforce the components of the track systems, a reinforcing material  62  may be included on the closed bottom  18  of the top portion  4  and the closed top  50  of the bottom portion  6 . Accordingly, the components of the track systems may be secured or attached to the reinforcing material  62 . If a reinforcing material  62  is used or included on the exterior of the closed bottom  18  of the top portion  4  and the exterior of the closed top  50  of the bottom portion  6 , instead of using separate male and female track components that attach to the top  4  and bottom  6  portions of the bag  2 , the male  66  and female  68  track components may be machined directly into the reinforcing material  62  included on the top portion  4  and bottom portion  6  as depicted in  FIGS. 13A and 13B . 
     Another embodiment of an attaching device or means that may be used to attach the top portion  4  of the bag  2  to the bottom portion  6 , is depicted in  FIGS. 14A and 14B . As can be seen in  FIG. 14B , the bottom portion  6  includes at least one rotatable locking member  82  on the exterior surface of its closed top  50 . The locking member  82  is connected to a rotation member (not shown in the figures) that is located beneath the locking member  82  in the interior compartment  54  of the bottom portion  6  such that rotation of the rotation member results in rotation of the locking member  82  in a corresponding manner. Preferably, the rotation member is located adjacent to the interior surface of the closed top  50 . As can be seen in  FIG. 14A , the top portion  4  includes at least one opening  84 , which has a complementary shape to that of the locking member  82  and which is slightly larger than the locking member  82 . The opening  84  is located on the bottom surface of the top portion&#39;s  4  closed bottom  18  in a corresponding location to the locking member  82 . Preferably, the closed bottom  18  includes a rigid material such as plastic, rubber or the like, into which the opening  84  is formed. Additionally, the opening  84  preferably opens into a chamber that is separated from the interior or bucket portion of the top portion  4  so that items contained therein, do not interfere with the operation of the locking member  82 . 
     To connect the top portion  4  and the bottom portion  6  to one another, a user brings the two portions of the bag  2  into close proximity with each other, aligns the locking member  82  with the opening  84 , brings the two portions into contact with each other such that the locking member  82  is received within the opening  84 , and then rotates the rotation member, which rotates the locking member  82  in a corresponding manner within the opening  84 , thereby locking or joining the top portion  4  and the bottom portion  6  together. Stops may be included on the interior of the opening  84  in order to prevent over rotation of the locking member  82  and insure that the two portions remain locked or joined together. A locking device may also be included on the rotation member to prevent inadvertent rotation of the locking member  82  and hence, inadvertent separation of the top  4  and bottom  6  portions. To detach the top portion  4  from the bottom portion  6 , a user releases or unlocks (if a locking device is included) the rotation member and then rotates the rotation member in a direction opposite to that used to join the portions together such that the locking member  82  re-aligns with the opening  84 . Once the locking member  82  is aligned with the opening  84 , a user simply removes the bottom portion from the top portion  4 . 
     Instead of having a bottom portion  6  with a rotatable locking member  82 , another embodiment of the present bag  2  may include a locking member on the bottom portion  6  that is permanently fixed at an angle 90° to the opening  84  on the bottom surface of the top portion&#39;s  4  closed bottom  18 . Accordingly, instead of rotating the locking member to join the top portion  4  and the bottom portion  6  together, a user positions the top portion  4  of the bag  2  at a 90° to the bottom portion  6  such that the locking member aligns with the opening  84 . The user then brings the two portions into contact with each other so that the locking member is received within the opening  84 . Once the locking member is received within the opening  84 , a user simply rotates one portion of the bag, typically the top portion  4 , 90° clockwise or counterclockwise with respect to the other or bottom portion  6  of the bag  2 , thereby rotating the locking member in a corresponding manner within the opening  84 , thus joining the top portion  4  and the bottom portion  6  together. 
     Although an “I”-shaped locking member  82  and opening  84  are depicted in the figures, any shape locking member  82  and opening  84  may be used as long as they have complementary geometries. Further, as will be readily apparent to those skilled in the art, if rotatable locking members  82  are employed, a plurality of locking members  82  and openings  84  may be used to join or connect the top portion  4  to the bottom portion  6 . 
     As will be readily apparent to those skilled in the art, additional attaching devices or means for attaching the top portion  4  and the bottom portion  6  of the bag  2  to each other, for example and not limited to, magnetic components, zippers, snaps, buttons, hook and loop fasteners (VELCRO®), or the like, may also be used. Accordingly, one component of the attaching device or means for attaching may be included on the top portion  4  of the bag  2  and the corresponding component of the device or means for attaching may be included on the bottom portion  6  of the bag  2 . 
     Similar to the track attachment device previously disclosed, a reinforcing material  62  may be included on the closed bottom  18  of the top portion  4  and the closed top  50  of the bottom portion  6  to further reinforce the attaching device. Accordingly, to further support the components of the attaching device, the components may be secured or attached to the reinforcing material  62 . 
     As shown in  FIG. 15 , to further secure the top portion  4  to the bottom portion  6 , additional attaching devices  86  such as snap reinforcements, may be used on the end portions  16  of the bag  2 . For example, a decorative tag  86  attached to the exterior of the top portion&#39;s  4  end portions  16 , can be snapped onto a snap  87  located towards the top of an exterior end of the bottom portion  6 . When the bottom portion  6  is detached from the top portion  4 , the tag  86  can be snapped onto a snap  89  located immediately above where the tag  86  is attached to the top potion  4 , thereby creating a decorative feature on the top portion  4  of the bag  2 . To help reinforce the additional attaching devices  86 , the end portions of the top and bottom portions of the bag may include reinforcing material on either the inside or outside of the bag  2  where the additional attaching devices  86  attach. 
     As can be seen in the figures, and more specifically  FIG. 1A , an apron  12  may be included on the exterior of the carrying bag  2  at the junction between the top portion  4  and bottom portion  6 . The apron  12  may be formed from a material such as canvas, vinyl, plastic, rubber, or any other material and which may or may not be covered with the material used to form the exterior of the bag  2 . The apron  12  has at least two functions. First, the apron  12  is used to conceal the junction between the top  4  and bottom  6  portions of the bag  2 . Second, the apron  12  serves as a support for the top portion  4  when separated from the bottom portion  6  and placed, for example, on a table or floor. Accordingly, the apron  12  is capable of being flipped or rolled up to expose the junction between the top portion  4  and bottom portion  6  thereby allowing the portions to be separated from each other. Thereafter, the apron  12  is capable of being flipped or rolled back down so as to support for the top portion  4  when placed on a horizontal surface. If an apron  12  is made from a rolled material, it does not need to be flipped up and it can be used to support the top portion  4  of the bag  2  when separated from the bottom portion  6 . If, however, an apron  12  is not included on the bag  2  or if it is not desired to use the apron  12  as a support for the top portion  4 , as depicted in  FIG. 8A , “feet” or supports may be included on the exterior surface of the top portion&#39;s  4  closed bottom  18 , which can be flat against the closed bottom  18  of the top portion  4  and pulled down or extended for use such that the feet or supports are out of the way when the top and bottom portions are attached to one another. 
     As depicted in  FIG. 16 , because the bottom portion  6  is detachable from the top portion  4 , additional embodiments of the present invention can include different size bottom portions  4  so long as the top  4  and bottom  6  portions remain proportional to one another. Also, different size bottom portions  4  may be provided and used interchangeably resulting in a carrying bag  2  having a size and carrying capacity that can be tailored or adjusted based on its intended use. For example, if traveling locally, a user may not require a carrying bag  2  with a large bottom portion  6 . If, however, a user is traveling a further distance, for example, by airplane, a user will usually be carrying more items and may want or need a larger carrying capacity. Accordingly, a larger bottom portion  6  may be desired. 
     Further, in additional embodiments, the carrying bag  2  of the present invention may come in various sizes such as medium, large and extra large and may be designed to have a wider bottom portion  6  ( FIG. 17A ) or a wider top portion  4  ( FIG. 17B ). Additional storage may also be included on the exterior surfaces of the top  4  and bottom  6  portions of the bag  2  through use of exterior pockets  88  of various sizes and shapes. These pockets  88  may be made from a variety of materials such as, for example, canvas, nylon, netting, mesh, plastic, etc., and may include closure devices  90  such as zippers, snaps, buttons, hook and loop fasteners (VELCRO®) or any other suitable closure device known in the art or, the pockets  88  may be made elastic, in order to prevent the items contained therein from falling. The pockets  88  may also be formed between layers of material such that a closure device, such as a zipper, may be located on the exterior surface of the bag  2 , while the actual pocket space is located between the material. 
     Although a preferred embodiment of the present invention and modifications thereof have been described in detail herein, it is to be understood that this invention is not limited to this precise embodiment and modifications, and that other modifications and variations may be effected by one skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.