ACCESSORIES FOR MAINTENANCE OF WATER BLADDERS

BACKGROUND

Water bladders are used by hikers, backpackers, and other outdoor enthusiasts to provide ready hydration during vigorous activities. Such bladders are typically carried in a backpack and include a drinking tube and bite valve that may be easily manipulated so as to enable use during activity. After use, water bladders should be stored dry, but given the flexible material and enclosed body of a water bladder, this can often prove difficult.

SUMMARY

In one aspect, the technology relates to a ventilation system for a water bladder, the ventilation system including: a fan including: a fan housing defining at least one inlet opening and at least one outlet opening; at least one fan blade rotatably secured within the fan housing; a motor for rotating the at least one fan blade; a controller secured to the housing for controlling the motor; and at least one power port for providing power to at least one of the motor and the controller; a mating adapter secured to the fan housing, wherein the mating adapter defines an air inlet end proximate the fan housing and an air outlet end disposed opposite the air inlet end; and a securing structure disposed proximate the air outlet end for selectively securing the mating adapter to a drinking bladder. In an example, the mating adapter is integral with the fan housing. In another example, the ventilation system includes an adapter lock for releasably securing the mating adapter to the fan housing. In another example, the adapter lock includes: a locking tab defined by a first one of the fan housing and the mating adapter; and a detent defined by a second one of the fan housing and the mating adapter, wherein the detent is selectively engageable with the locking tab. In yet another example, the locking tab is at least partially defined by the mating adapter. In still another example, the securing structure includes at least one threaded connection at least partially defined by the air outlet end of the mating adapter.

In an example of the above aspect, wherein the securing structure includes at least one hook extending from the mating adapter. In another example, the securing structure includes a resilient element disposed on the mating adapter. In yet another example, the resilient element is disposed on an outer surface of the mating adapter proximate the air outlet opening. In still another example, resilient element is disposed on an inner surface of the mating adapter proximate the air outlet opening.

In an example of the above aspect, the ventilation system includes a mating adapter extension selectively securable to the air outlet end of the mating adapter. In another example, the mating adapter extension includes a securing structure for selectively securing the mating adapter extension to the drinking bladder. In yet another example, the mating adapter extension includes a plurality of mating adapter extensions, wherein each of the plurality of mating adapter extensions are individually selectively securable to the mating adapter. In still another example, each of the plurality of mating adapter extensions define an air outlet end having a different form factor.

In an example of the above aspect, the securing structure includes a plurality of securing structures. In another example, each of the plurality of securing structures are defined by a different diameter. In another example, the plurality of securing structures are different. In yet another example, at least one of the securing structures is a bayonet-type element. In still another example, at least one of the securing structures includes a threaded connection.

In an example of the above aspect, the controller includes at least one of a dial, a button, a switch, and a toggle. In another example, the controller includes a circuit for substantially directly connecting the motor to the power port. In another example, the power port includes at least one of a USB port, a micro USB port, a charging port, an electric port, and a battery contact. In yet another example, the mating adapter includes an adapter body disposed between the air inlet end and the air outlet end, and wherein the adapter body includes a body surface area. In still another example, the body defines at least one relief opening having a relief opening area.

In an example of the above aspect, the relief opening area is less than about 20% of the body surface area. In another example, the relief opening area is less than about 10% of the body surface area. In another example, the relief opening area is less than about 5% of the body surface area. In yet another example, the ventilation system includes a hanging hook releasably secured to the fan housing. In still another example, at least one of the hanging hook and the fan housing includes a magnet, a press fit connection, a threaded connection, a tab connection, and a clamp connection for releasably connecting the hanging hook to the fan housing.

In an example of the above aspect, the hanging hook includes a support hook and an insert configured to be inserted into a tube port of a bladder. In another example, the hanging hook is positionable in a stored position and a deployed position, wherein when in the stored position, the insert is disposed adjacent the support hook, and wherein when in the deployed position, the insert is disposed distal from the support hook. In another example, the hanging hook further includes at least one of a hinge or a pivot, wherein the at least one of the hinge or the pivot is configured to change a position of the insert relative to the support hook. In yet another example, the controller includes at least one of a fan speed control, a motor output control, a humidity sensor, and a temperature sensor. In still another example, the ventilation system includes a drying snake releasably secured to the fan housing.

In an example of the above aspect, the drying snake includes a handle. In another example, the drying snake has a tip. In yet another example, the tip defines a receiver for receiving at least one of a cloth, a microfiber, and a sponge. In still another example, the ventilation system includes a drying snake releasably secured to the hanger.

In another aspect, the technology relates to a kit for drying an interior of a drinking bladder, the kit: a mating adapter, wherein the mating adapter is releasably securable to a mouth of the drinking bladder; and a fan for introducing air from an exterior of the drinking bladder to the interior of the drinking bladder, via the mating adapter. In an example, the mating adapter is releasably securable to a fan housing of the fan. In another example, the mating adapter is fixed to a fan housing of the fan. In another example, the kit includes a plurality of mating adapters, wherein each of the plurality of mating adapters includes an air outlet end and wherein each of the air outlet ends of each of the plurality of mating adapters includes at least one of a different primary dimension and a different form factor. In another example, the kit includes a plurality of mating adapter extensions, wherein each of the plurality of mating adapter extensions includes an air outlet end and wherein each of the air outlet ends of each of the plurality of mating adapter extensions includes at least one of a different primary dimension and a different form factor. In yet another example, the kit includes a hanger releasably connected to a fan housing of the fan. In still another example, the kit includes a drying snake releasably connected to at least one of the hanger and the fan housing.

In another aspect, the technology relates to a method of introducing air to an interior of a drinking bladder, the method including: securing a fan housing in a position to introduce air into a mouth of the drinking bladder; and activating the fan. In another example, the method includes securing a mating adapter to the mouth of the drinking bladder prior to activating the fan. In another example, the method includes securing the fan housing to the mating adapter. In yet another example, the mating adapter includes a mating adapter extension and wherein the mating adapter extension is secured to the mouth of the drinking bladder. In still another example, the method includes: releasing, from the fan housing, a hanger; securing at least a portion of the hanger to a tube port of the drinking bladder; and suspending the drinking bladder, via the hanger, from a structure.

BRIEF DESCRIPTION OF THE DRAWINGS

Non-limiting and non-exhaustive examples are described with reference to the following Figures.

FIG. 1 depicts a view of a water bladder utilizing accessories, namely, a drying fan and a hanging hook.

FIG. 2A depicts a front view of a ventilation system with an example of an integral mating adapter.

FIG. 2B depicts an exploded rear perspective view of a ventilation system with an example of a removable mating adapter.

FIG. 3 depicts a front perspective view of a ventilation system with another example of a removable mating adapter.

FIG. 4 depicts an exploded front perspective view of a ventilation system with an example of a stacked mating adapter, which includes a mating adapter base and a mating adapter extension.

FIG. 5 depicts a ventilation system including a drying fan having an ultraviolet light.

FIGS. 6A and 6B depict a ventilation system including a removable hanging hook.

FIGS. 7A and 7B depict the removable hanging hook in a stored (or disengaged) configuration and in a deployed configuration, respectively.

FIG. 8A depicts a partial perspective view of a drying snake for a drinking tube in a deployed configuration.

FIG. 8B depicts a partial perspective view of the drying snake of FIG. 8A in a stored configuration.

FIG. 9 depicts a ventilation system kit.

FIG. 10 depicts a method of using a ventilation system to dry a bladder.

DETAILED DESCRIPTION

In the following detailed description, references are made to the accompanying drawings that form a part hereof, and in which are shown by way of illustrations specific embodiments or examples. These aspects may be combined, other aspects may be utilized, and structural changes may be made without departing from the present disclosure. Examples may be practiced as methods, systems, or devices. The following detailed description is therefore not to be taken in a limiting sense.

FIG. 1 depicts a view of a water bladder 10 utilizing accessories, namely, a ventilation system V including a drying fan 100 and a hanging hook 600. The water bladder 10 may be a flexible bag structure 12 of polyurethane, polyethylene, polyurethane/polyethylene composite, or flexible or semi-flexible materials. Such bladders may be sold under the brand names GREGORY, CAMELBAK, PLATYPUS, OSPREY, etc., and are used for hydration during outdoor activities such as backpacking, hiking, skiing, and so on. Such bladders are typically filled with a liquid via a closeable mouth 14, and have connected thereto (during use) a drinking tube (not depicted), which is secured to a tube connection or port 16. In other examples, the drinking tube may be secured to the lid, which is subsequently secured to the mouth 14.

While the term “bladder” is used herein, the technologies described are not limited to use with only flexible bladders. In examples, the technologies described herein may be utilized with rigid or semi-rigid hydration reservoirs, such as sold under the brand name NALGENE, COLEMAN, etc. Rigid reservoirs may be made from robust plastics or metals. Further, the bladders or reservoirs need not contain only “water,” although that term is used primarily in this description; other liquids, such as sport drinks, teas, caffeinated beverages, and other beverages, may be utilized with such bladders or reservoirs. Thus, the use of the term “water bladders” to describe the items and contents herein should not be considered limiting to the application. Further, while one of the accessories described herein includes a so-called “drying fan”, complete drying of an interior of a water bladder need not be achieved by the drying fan for the technology to be useful. A reduction in internal dampness of the bladder may be sufficient. As such, the technologies described herein may be described appropriately as “drying systems,” “ventilation systems,” and other like terms.

The technologies described herein are utilized with bladders 10 of various sizes and configurations to aid in drying the inside of the bladder 10 and the drinking tube, so as to prevent bacteria or mold growth, which can adversely affect water taste or cause health concerns. Such technologies include, but are not limited to, a ventilation system V having a drying fan 100 and, optionally, a hanging hook 600. The drying fan 100 is secured to the mouth 14 of the water bladder 10 and activated so as to introduce or deliver air to an interior thereof, thus accelerating the drying process. The hanging hook 600 may be at least partially inserted into the tube port 16 and may be utilized to hang or suspend the water bladder 10 during or after a drying procedure.

The drying fan 100 includes a housing that may be in any form factor as required or desired for a particular application. In the depicted example, the fan 100 includes a substantially circular housing 102 and a handle housing 104 extending therefrom. In examples, the housing may include an integrally formed or connected grille on both inlet and outlet sides of a fan box that contains a fan 106. Here, the circular housing 102 defines a plurality of air inlet openings 108, typically on a rear surface and/or a side surface of the circular housing 102. Depending on housing 102 configuration, airflow requirements, and other factors, multi-blade fans, squirrel cage fans, or other fan configurations may be utilized. The fan 106 may have two, three, four, five, or more blades, as required or desired for a particular application.

The fan housing 102 or handle housing 104 may also include one or more controls 110 that may include, for example, ON-OFF controls, variable speed or multi-speed controls, accessory (e.g., UV-light, heater, etc.) controls, timer controls, etc. The controls may further include one or more of an air humidity or temperature sensor, which may ultimately be used to control the fan, timer, or other accessories (e.g., a heating element, described below). The controls 110 may include one or more dials, buttons, switches, toggles, or combinations thereof. The housing, here the handle housing 104, may also define a port 112 to provide power to the fan or other components. The port 112 may be utilized for charging an on-board rechargeable battery, or may provide power directly from a building electrical service, via a plug and cable, to an interior circuit that powers a fan motor 113. Other power sources, such as replaceable battery(ies), battery(ies) chargeable via wireless charging protocols, etc., are also contemplated. As such, in examples, the port 112 may be a USB port, a micro USB port, a charging port, an electric cable port, or a battery contact. A single light 114 (e.g., an LED light), clusters of lights, or other indicators may be utilized to indicate status of the fan, dry time remaining, etc.

The ventilation system V may be utilized across a wide variety of water bladders, and therefore may include one or more mating adapters 200, each configured to mate with the mouth 14 of a particular water bladder 10. The mating adapter 200 includes a body 202 that may be releasably or removably secured to an outlet side of the fan housing, for example, the circular housing 102. In examples of a removably secured body 202, the mating adapter 200 may be releasably secured with a lock 204 that prevents inadvertent disconnection of the mating adapter 200 from the fan housing 102. In other examples, a mating adapter 200 may be integral with the circular housing 102. Numerous examples of fan and mating adapter configurations are depicted herein.

FIG. 2A depicts a front view of a ventilation system V having a drying fan 100 with an example of an integral mating adapter 200. As described above, the fan 100 includes a circular housing 102 that encloses a multi-blade fan 106, and a handle housing 104 extending therefrom. The circular housing 102 defines a plurality of air inlet openings 108 on rear and side surfaces thereof to allow air to be drawn into the circular housing 102 when the fan 106 is activated. The air is discharged through air outlet openings 116. In examples, all or a portion of the circular housing 102 is constructed of a grill structure so as to allow for uninhibited airflow. The drying fan 100 of FIG. 2A is configured with a mating adapter 200 integral with the circular housing 102. The mating adapter 200 includes a body 202 that defines an air inlet end 206 defined, for example, by a plane adjacent the fan housing 102 and orthogonal to a general airflow direction, and an air outlet end 208 defined for example by a plane at the opposite end of the body 202. The two planes are generally parallel to each other.

The air inlet end 206 may have a diameter smaller than that of the air outlet end 208, thus giving the mating adapter 200 an expanding tapered shape. While the air inlet end 206 may be sized based on the fan housing 102 diameter, the air outlet end 208 may be sized to fit the mouth on a corresponding water bladder having a particular diameter or form factor. The air outlet end 208 of the body 202 includes one or more securing structures that may be used to secure the mating adapter 200 to a mouth of a bladder. In the depicted configuration, the securing structure is a threaded connection 210 that is configured to match a corresponding thread on the mouth of a bladder made by a specific manufacturer. Other securing structures are contemplated, as required or desired for a particular application. For example, the securing structure may be one or more gaskets or resilient members disposed within the inner surface of the mating adapter, which may engage with threads, ridges, or other structures on the mouth of a water bladder. In another example, one or more resilient members may be disposed on an outer surface of the mating adapter, such that the mating adapter may be inserted into a mouth of a water bladder. In another example, hooks or other projecting structures may project from the mating adapter to engage a mouth of a water bladder. In another example, the securing structure may be a slot or projection typical for a bayonet-type connection, to mate with a corresponding projection or slot (respectively) on a mouth of a water bladder. Examples of securing structures are depicted and described further herein. Regardless of structure type, the securing structure that engages with a mouth of a water bladder, e.g., the threaded connection 210 of FIG. 2A, ensures a robust seal with the mouth, which enables air delivered by the fan 100 to be introduced to the interior of the bladder.

It has been determined that a robust seal is generally desirable in order to ensure proper air delivery to the interior of the bladder. When most bladders are empty, it is observed that the walls of the bladder remain in substantial contact with each other. This may be due, at least in part, to material affinity of the bladders (that is, the walls of the bladder tend to stick together), or surface tension of a film of water between the two walls. It is desirable that the pressure of the air delivered by the fan 100 should be sufficient to spread the two walls apart, thus allowing for airflow into the interior of the bladder.

A seal between the mating adapter 200 and mouth of the bladder should be present, although some minimal leakage at the seal may still occur. If the seal is not sufficiently robust, however, air delivered by the fan may simply bleed or leak out of the connection, without properly blowing into the bladder to expand the walls. It has been further determined, however, that some pressure relief from the interior of the bladder to the exterior thereof may be desirable, since excess pressure within the bladder may cause back pressure on the fan, thereby causing strain on the fan motor and leading to premature wear and possibly failure. Further, while some air pressure may be able to be released through the air inlet openings 108 of the fan 100, this may cause excess turbulent airflow in the fan housing 102, which may damage the fan blades 106. As such, in some examples, the body 202 of the mating adapter 200 defines a plurality of relief openings 212 therethrough, which enables air to bleed out of the side of the mating adapter 202. More specifically, the relief openings 212 are defined by a surface area of the body 202 between the air inlet end 206 and the air outlet end 208. It has been determined that openings 212 of less than a maximum area are desirable, since openings 212 that provide too much relief may result in problems similar to those noted above, where insufficient air pressure delivered into the bladder is unable to adequately separate the walls of the bladder. It has been determined that one or more openings 212 having an open area of about 20% of the total surface area of the mating adapter 200 allows for sufficient pressure relief while still enabling adequate pressure to be exerted on the interior of the bladder. One or more openings 212 having an open area of about 10% of the total surface area of the mating adapter, as well as one or more openings 212 having an open area of about 5% of the total surface area of the mating adapter 200, are also contemplated for desirable performance. These opening areas may be altered as required or desired based on fan airflow, fan pressure, or other factors. Further, bladder material may also be considered when determining the size of the relief openings 212. An outer surface 214 of the mating adapter 200 may include knurling, channels, texture, or other structural features 216 so as to improve user grasping thereof, which is helpful in securing the mating adapter 200 to the mouth of the bladder or to the fan housing, or disconnecting it therefrom.

As described in the context of the fan 100 of FIG. 1, the fan 100 may also include controls and other features not visible in this particular view, but as would be apparent to a person of skill in the art. The fan 100 and mating adapter 200 of FIG. 2A depict a ventilation system that is configured to mate with a mouth of a water bladder having a predetermined size, shape diameter, or form factor. This may be useful to ensure compatibility of a ventilation system with the product(s) of a particular bladder manufacturer, for example: sizing the fan and/or fan motor to produce air pressure sufficient to spread the walls of the bladder; ensuring an absolute, or near absolute, seal between the ventilation system and the mouth; providing a warranty of the ventilation system by the bladder manufacturer; etc. Other examples of ventilation systems are contemplated, however, that may enable a single fan to be utilized with water bladders of a number of manufacturers, each having a distinctly sized and shaped mouth. Depending on the manufacturer, bladder mouths may have different features to engage sealing caps or lids; these features may include threads, bayonets, tongue and groove structures, mating projections, etc. Thus, ventilation systems may include fan housings and/or mating adapters with securing structures that may be configured to mate with mouths having one or more of types of mouth structures. Across various manufacturers, mouths having different diameters, shapes, and structural features are utilized, and a ventilation system that is adapted to fit the bladder mouths of two or more manufactures may be desirable. Several non-limiting examples are described herein.

FIG. 2B depicts an exploded rear perspective view of a ventilation system V having a drying fan 100 and an example of a removable mating adapter 250. Components of the fan 100 are described above in the context of other figures and, as such, are not necessarily described further. The removable mating adapter 250 may have a body 252 that is releasably secured to an outlet side of the fan housing 102. Here, the mating adapter 250 is releasably secured with a locking tab 254 that prevents inadvertent disconnection of the mating adapter 250 from the fan housing 102. Further details of the locking tab 254 and related structures are described below.

The mating adapter 250 includes a body 252 that defines an air inlet end 256 defined, for example, by a plane adjacent the fan housing 102 and orthogonal to a general airflow direction, and an air outlet end 258 defined for example by a plane at the opposite end of the body 252. The two planes are generally parallel to each other. The air inlet end 256 has a diameter smaller than that of the air outlet end 258, thus giving the mating adapter 250 an expanding tapered shape. The air inlet end 256 is sized to mate with the fan housing 102 diameter, while the air outlet end 258 is sized to fit the mouth on a predetermined water bladder. The air outlet end 258 of the body 252 includes one or more securing structures that may be used to secure the mating adapter 250 to a mouth of a bladder. In the depicted configuration, the securing structure is a threaded connection 260 that is configured to match a corresponding thread on a mouth of a bladder made by a specific manufacturer. Other securing structures are contemplated, as required or desired for a particular application, and are described elsewhere herein. The body 252 of the mating adapter 250 defines a plurality of relief openings 262 therethrough, which enables air to be relieved from an interior of the mating adapter 252. The relief openings 262 may be sized as described herein. An outer surface 264 of the mating adapter 250 may include knurling, channels, texture, or other structural features 266 so as to improve user grasping thereof, which is helpful in securing the mating adapter 250 to the mouth of the bladder or the fan, or disconnecting it therefrom.

The locking tab 254 may be integrally formed with the body 252 as a deflectable tab. The locking tab 254 may engage with a detent 118 (hidden) on the fan housing 102, when the air inlet end 256 is engaged therewith. A number of other bayonet-style projections 268 may mate with similar L-shaped slots 120 (hidden) on the fan housing 102. To secure the mating extension 250 to the fan housing 102, the locking tab 254 may be depressed and the air inlet end 256 of the mating adapter inserted into the fan housing 102 such that the projections 268 are aligned with a first channel of the L-shaped slots 120. The mating adapter 250 may then be rotated about an axis defined by the fan 106 until the projections 268 reach ends of the second channels of the L-shaped slots 120. Substantially simultaneously, the locking tab 254 engages with the detent 118, thus locking a position of the mating adapter 250 relative to the fan housing 102. Removal requires depressing the locking tab 254 to disengage the detent 118, and an opposite rotation of the mating adapter 250.

The L-shaped slots 120 may serve another purpose beyond engaging with the mating adapter 252. In an example, the fan housing 102 may include L-shaped slots 120 that are configured to engage with a mouth of a first bladder (e.g., one manufactured by a different manufacturer). In such an example, the L-shaped slots 120 and the fan housing 102 itself may be configured to engage with a mouth (and corresponding bayonet-type projections thereon) of a first water bladder (e.g., by a first manufacturer). As such, the portion of the fan housing 102 that defined the L-shaped slots 120 and detent 118 may be considered to define a first mating adapter 122 that is integral with the fan housing 102. However, the mating adapter 250 includes securing structures 260 configured to mate with a mouth of a second water bladder (e.g., by a second manufacturer). Thus, the removable mating adapter 250 may be secured to the fan housing 102 in order to use the ventilation system V with the second water bladder. The various types of mating securing structures to secure the fan housing 102 to a first bladder mouth, the fan housing 102 to the mating adapter 250, the mating adapter 250 to the second bladder mouth, etc., may vary as required or desired for a particular application. Securing structures described herein, for example, threads, bayonet-type projections and slots, gaskets or resilient elements, friction fit connections, combinations thereof, and similar structures, are all contemplated and should not be considered limiting. Also, the location of certain of the securing structures may be reversed, for example, the locking tab 254 and the projections 268 may be disposed on the fan housing 102, while the detent 118 and L-shaped slots 120 may be disposed on the mating adapter 250.

FIG. 3 depicts a front perspective view of a ventilation system V having a drying fan 100 and another example of a removable mating adapter 300. Components of the fan 100 are described above in the context of other figures and, as such, are not necessarily described further. The removable mating adapter 300 may have a body 302 that is releasably secured to an outlet side of the fan housing 102 with a lock 304 that prevents inadvertent disconnection of the mating adapter 300 from the fan housing 102. Further details of the lock 304 and related structures are described below.

The mating adapter 300 includes a body 302 that defines an air inlet end 306 defined, for example, by a plane adjacent the fan housing 102 and orthogonal to a general airflow direction, and an air outlet end 308 defined for example by a plane at the opposite end of the body 302. The two planes are generally parallel to each other. The air inlet end 306 has a diameter larger than that of the air outlet end 308, thus giving the mating adapter 300 a reducing tapered shape. The air outlet end 308 of the body 302 includes one or more securing structures that may be used to secure the mating adapter 300 to a mouth of a bladder. In the depicted configuration, the securing structure is a threaded connection 310 that is configured to match a corresponding thread on a mouth of a bladder made by a specific manufacturer. Other securing structures are contemplated, as required or desired for a particular application, and are described elsewhere herein. The body 302 of the mating adapter 300 defines a plurality of relief openings 312 therethrough, which enables air to be relieved from an interior of the mating adapter 302. The relief openings 312 may be sized as described herein. An outer surface 314 of the mating adapter 300 may include knurling, channels, texture, or other structural features 316 so as to improve user grasping thereof, which is helpful in securing the mating adapter 300 to the mouth of the bladder or the fan housing, or disconnecting it therefrom.

The locking tab 304 may be integrally formed with the body 302 as a deflectable tab. The locking tab 304 may engage with a detent 118 on the fan housing 102, when the air inlet end 306 is engaged therewith. A number of other bayonet-style projections 318 may mate with similar L-shaped slots 120 on the fan housing 102. Securing and removal of the mating adapter 300 and the fan housing 102 with bayonet-style projections 318 and slots 120 are described herein. As described in the context of FIG. 2B, the L-shaped slots 120 and the fan housing 102 itself may be configured to engage with a mouth (and corresponding bayonet-type projections thereon) of a first water bladder (e.g., by a first manufacturer), while the securing structures 310 may mate with a mouth of a second water bladder (e.g., by a second manufacturer). Thus, the ventilation system V be utilized with multiple water bladders. The various types of mating securing structures to secure the fan housing 102 to a first bladder mouth, the fan housing 102 to the mating adapter 300, the mating adapter 300 to the second bladder mouth, etc., may vary as required or desired for a particular application.

Further functionality is provided by providing multiple securing structures on the mating adapter 300. In FIG. 3, for example, threaded connection 310 on an interior surface of the air outlet end 308 may be used to secure the mating adapter 300 to a mouth of a first water bladder. A second securing structure, in this case, a resilient element or gasket 320, is disposed on an outer surface of the air outlet end 308 of the mating adapter 300 and may be used to secure the mating adapter 300 to a mouth of a second water bladder, which has a different form factor and diameter than the mouth of the first water bladder. Other combinations of securing structures are contemplated and may be used interchangeably to connect the ventilation system V to mouths having different types of connection features, diameters, form factors, etc. Securing structures described herein, for example, threads, bayonet-type projections and slots, gaskets or resilient elements, friction fit connections, combinations thereof, and similar structures, are all contemplated and should not be considered limiting.

FIG. 4 depicts a partially exploded front perspective view of a ventilation system V with an example of a stacked mating adapter 400. The stacked mating adapter 400, in this example, includes two parts, a mating adapter base 250 and a mating adapter extension 300. The mating adapter base 200 includes, in this example, a form factor similar to the mating adapter 250 depicted and described in FIG. 2B. The mating adapter extension 300 includes, in this example, a form factor similar to the mating adapter 300 depicted and described in FIG. 3. As such, certain components of the mating adapter base 250 and mating adapter extension 300 are not necessarily described further. In the depicted configuration, a single drying fan 100 may be provided with a plurality of mating adapters 250, 300 which may be used together so as to be easily compatible with multiple types of water bladders. The depicted ventilation system V may be utilized to mate with bladder mouths having at least three different form factors (e.g., from three different manufacturers). In a first use, the drying fan 100 utilizes a connection securing structure in the form of a plurality of L-shaped slots 120. These slots are formed in a mating adapter 122 portion of the fan housing 102 and may be used to secure the fan housing 102 directly to a mouth of a first water bladder that includes bayonet-style projections. In a second use, the plurality of L-shaped slots 120 of the drying fan may be secured to the bayonet-style projections (not visible) on the removable mating adapter base 250. Thereafter, the removable mating adapter base 250 may be secured to a mouth of a second water bladder. In the depicted example, the mating adapter base 250 utilizes a securing structure in the form of one or more gaskets or resilient elements 260, which may be pressed on a mouth of a second bladder that utilizes a threaded connection, for example. In a third use, the plurality of L-shaped slots 120 of the drying fan may be secured to the bayonet-style projections (not visible) on the removable mating adapter base 250, and a mating adapter extension 300 may be secured to the mating adapter base 250. Thereafter, the removable mating adapter extension 300 may be secured to a mouth of a third water bladder. In the depicted example, the mating adapter extension utilizes a securing structure in the form of one or more gaskets or resilient elements 320 that may engage with the one or more gaskets or resilient elements 260 of the mating adapter base 250. The threaded connection 310 of the mating adapter extension 300 may then be secured to a mouth of a third bladder that utilizes a threaded connection, for example.

The ventilation system V described in FIG. 4 is but one example of a modular ventilation system, where multiple mating adapters may be utilized to enable the ventilation systems described herein to engage with a plurality of water bladders. In other examples, different securement structures than those depicted in FIG. 4 may be utilized on the air inlet sides and air outlet sides of each of the mating adapter base and mating adapter extension, so as to ensure compatibility with bladder mouths having predetermined diameters or form factors. In other examples, the large-diameter mating adapter base may be integral with the fan housing. In other examples, a mating adapter base having a tapering shape may be secured to the fan housing and an appropriately-dimensioned mating adapter extension having an expanding shape may be secured to the mating adapter base. Other configurations are contemplated and would be apparent to a person of skill in the art upon reading this disclosure.

FIG. 5 depicts a ventilation system V including a drying fan 100 having an ultraviolet light 500. The fan 100 may be configured as described elsewhere herein; as such, certain components and features thereof are not necessarily described further. The UV light 500 may be utilized to disinfect an interior surface of a water bladder to which the drying fan 100 is secured, as UV disinfection is known in the art. In another example, the UV light 500 may be replaced or supplemented with an electric heating element. The heating element may heat the air being delivered to the interior of the water bladder so as to speed drying operations.

FIGS. 6A and 6B depict a ventilation system V including a drying fan 100 having a removable hanging hook 600. In FIG. 6A, the hanging hook 600 is engaged with the handle housing 104, while in FIG. 6B, the hanging hook 600 is disengaged from the handle housing 104. The fan 100 may be configured as described elsewhere herein; as such, certain components and features thereof are not necessarily described further. FIGS. 6A and 6B are described concurrently and not every feature is depicted in both Figures. The hanging hook 600 includes a hook body 602 and an interface 604 pivotally secured at a pin, hinge, or pivot 606. The hook body 602 may define a plurality of locking tabs 608 that may be releasably secured to the handle housing 104 via a plurality of detents 124, which may secure the hanging hook 600 in a stored configuration, as depicted in FIG. 6A. This may prevent the hanging hook 600 from being misplaced when the ventilation system V is not in use. In other examples, at least one of the hanging hook and the fan housing may include a magnet, a press fit connection, a threaded connection, or a clamp connection for releasably connecting the hanging hook to the fan housing. FIG. 6B depicts the hanging hook 600 in a disengaged configuration, where it has been removed from the handle housing 104.

FIGS. 7A and 7B depict the hanging hook 600 in the stored (or disengaged) configuration and in a deployed configuration, respectively. FIGS. 7A and 7B are described concurrently and not every feature is depicted in both Figures. When in the stored (or disengaged) configuration, the hook body 602 is disposed proximate the interface 604. As described above, the hanging hook 600 includes a hook body 602 defining a plurality of tabs 608, and an interface 604 pivotally secured at a pin, hinge, or pivot 606. The hook body 602 may be sized and shaped to fit over a wire, string, rope, branch, rod, knob, or other support. The interface 604 includes an arm 610 and an insert 612. When in the deployed configuration, the arm 610 is rotated so as to be distal from the hook body 602. The arm 610 terminates at the insert 612, which may be configured to be inserted into the tube port of a water bladder (such as depicted in FIG. 1). This allows the bladder to be hung for storage or, in examples, when a ventilation system is used to dry the bladder. This suspended condition enables easier drying of the interior of the water bladder. A slot 614 in the insert 612 reduces friction with the tube port during insertion and removal and functions as another relief vent from the interior of the water bladder during fan operation. The slot may be configured to receive a rod of a drying snake (described below) during storage. Further, the insert 612 is depicted as having a substantially cylindrical cross section. In other examples, the insert may utilize a different form factor that may allow for securement with tube ports having a variety of shapes, diameters. or configurations. A tapered insert is contemplated. After drying operations, the insert 612 may be removed from the tube port, the arm 610 and interface 604 rotated so as to be proximate the hook body 602, and the locking tabs 608 engaged with the portion of the drying fan housing (such as depicted in FIGS. 6A and 6B). This helps reduce or eliminate the likelihood of disengagement of the hanging hook 600 and potential loss thereof during movement or storage of the fan.

FIG. 8A depicts a partial perspective view of a drying snake 800 for a drinking tube in a deployed configuration. FIG. 8B depicts a partial perspective view of the drying snake 800 of FIG. 8A in a stored configuration. FIGS. 8A and 8B are described concurrently and not every feature is depicted in both Figures. The drying snake 800 is depicted broken so as to represent that it may be manufactured in any length, as required or desired for a particular application. The drying snake 800 includes a rod 802, that may be rigid, semi-rigid, or flexible, in whole or in part. The rod 802 connects a tip 804 to a handle 806. In an example, the rod 802 may be rigid proximate both the tip 804 and the handle 806, and include one or more flexible portion(s) therebetween (e.g., at or near a midpoint of the rod). The flexible portion(s) allows the rod 802 to be manipulated into the stored configuration, so as to take up less room when not in use. In the stored configuration, a portion of the rod 802 adjacent the tip 804 may be received in a receiver 808 proximate or integral with the handle 806. The tip 804 defines a receiver or slot 810 for receiving a length of fabric, microfiber, cloth, paper, sponge, or other absorbent material. When in the deployed configuration, the tip 804 of the rod 802 (along with the absorbent material in the slot 810) may be inserted into a drinking tube for a water bladder and used to dry an interior of the drinking tube. In another example, the tip 804 may be manufactured in whole or in part from an absorbent material. In other examples, the tip 804 may be manufactured from an abrasive or semi-abrasive material so as to facilitate scrubbing of the interior of the drinking tube.

FIG. 9 depicts a ventilation system kit 900. Various components of the kit 900 are depicted and described elsewhere herein. The kit 900 may be packaged for shipping or sale with the components separated from each other in whole or in part. The various components of the kit are configured to be used in one or more combinations in order to deliver drying air to the interior of a water bladder or a plurality of water bladders (e.g., made by different manufacturers). Various combinations of components may form the kit 900. Components of a ventilation system kit 900 may include one or more of: a drying fan 100 (which may include an integral mating adapter), a first mating adapter 250 and/or a second mating adapter 300 (together a plurality of mating adapters may form a stacked mating adapter 400), a hanging hook 600, and a drying snake 800. In other examples, the kit may include a mating adapter base 250 and a plurality of mating adapter extensions (e.g., mating adapter extension 300 and other mating adapter extensions having different configurations), each having an air outlet opening configured to be secured to a differently-shaped mouth of a water bladder. Each of the mating adapter extensions may be individually selectively securable to the mating adapter base 250. The features of the various components of the kit 900, as well as use thereof, together or separately, are described herein.

FIG. 10 depicts a method 1000 of using a ventilation system to dry a bladder. The method 1000 is used to introduce air to an interior of a drinking bladder with a fan, utilizing various components of ventilation systems described herein. In one example, the method 1000 contemplates operation 1002, securing a fan housing in a position to introduce air into a mouth of the drinking bladder; and operation 1004, activating the fan. In another example, the method 1000 includes securing a mating adapter to the mouth of the drinking bladder prior to activating the fan, optional operation 1006. In another example, the method 1000 includes securing the fan housing to the mating adapter, optional operation 1008. As described herein, the mating adapter may include a mating adapter extension, which is the component that is secured to the mouth of the drinking bladder. Other examples of the method may include other operations. Such operations include the use of a hanging hook to suspend the water bladder during drying operations. For example, in the context of the ventilation systems described herein, the method 1000 may include releasing, from the fan housing, a hanger; securing at least a portion of the hanger to a tube port of the drinking bladder; and suspending the drinking bladder, via the hanger, from a structure. In other examples, the method may include inserting a snake having a drying component into a tube utilized with a drinking bladder.

While particular uses of the technology have been illustrated and discussed above, the disclosed technology can be used with a variety of environments in accordance with many examples of the technology. The above discussion is not meant to suggest that the disclosed technology is only suitable for implementation within the environments shown and described above.

This disclosure described some aspects of the present technology with reference to the accompanying drawings, in which only some of the possible aspects were shown. Other aspects can, however, be embodied in many different forms and should not be construed as limited to the aspects set forth herein. Rather, these aspects were provided so that this disclosure was thorough and complete and fully conveyed the scope of the possible aspects to those skilled in the art. As should be appreciated, the various aspects described with respect to the figures herein are not intended to limit the technology to the particular aspects described. Accordingly, additional configurations can be used to practice the technology herein and/or some aspects described can be excluded without departing from the methods and systems disclosed herein.

Similarly, where operations of a process are disclosed, those operations are described for purposes of illustrating the present technology and are not intended to limit the disclosure to a particular sequence of operations. For example, the operations can be performed in a differing order, two or more operations can be performed concurrently, additional operations can be performed, and disclosed operations can be excluded without departing from the present disclosure. Further, each operation can be accomplished via one or more sub-operations. The disclosed processes can be repeated.

Although specific aspects were described herein, the scope of the technology is not limited to those specific aspects. One skilled in the art will recognize other aspects or improvements that are within the scope of the present technology. Therefore, the specific structure, acts, or operations are disclosed only as illustrative aspects. The scope of the technology is defined by the following claims and any equivalents therein.

ACCESSORIES FOR MAINTENANCE OF WATER BLADDERS

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