Abstract:
A hydration system for kayak integration includes a deck port configured to allow fluid passage through a deck of a kayak. The system includes a reservoir having an internal sealable compartment configured to contain a liquid under pressure. The reservoir has a first port configured to receive pressurizing gasses into the compartment, a second port, and a third port through which the liquid can be supplied into the compartment. A transfer tube couples the reservoir to the deck port. The transfer tube has a first end configured to be coupled to the second port of the reservoir and a second end configured to be coupled to the deck port at a position within an interior space of the kayak. A pressurizer is configured to be coupled to the first port of the reservoir. The pressurizer is operable to supply the pressurizing gasses. A drinking tube has a first end with a valve and a second end. The second end is configured to be coupled to the deck port at a position exterior to the kayak. When the compartment is sealed and pressurized, activation of the valve unseals the compartment and allows the liquid to be expelled from the compartment via the second port, the transfer tube, and the drinking tube as a result of the pressurization of the compartment by the pressurizing gasses.

Description:
CROSS REFERENCE TO RELATED APPLICATION 
       [0001]    This application is a continuation in part of application Ser. No. 11/764,620 filed Jun. 18, 2007 having the same title. That parent application is incorporated herein by reference in its entirety. This application also claims priority of provisional application No. 60/955,599 filed Aug. 13, 2007. 
     
    
     BACKGROUND 
       [0002]    Personal hydrations systems help athletes maintain adequate hydration while engaging in strenuous physical activities, such as running, cycling, skiing, hiking, or mountain climbing. These personal hydration systems typically include a bag-like reservoir carried in a back pack or waist pack. A flexible drinking tube connects to the reservoir through an exit port at one end and terminates in a mouthpiece at the other end. The tube is long enough to allow the mouthpiece to be carried in the user&#39;s mouth to enable the user to draw water from the reservoir like sucking water through a straw. When low on breath during vigorous exercise, drawing water from the reservoir can prove to be a difficult task. 
     
    
     
       DESCRIPTION OF THE DRAWINGS 
         [0003]      FIGS. 1 and 2  illustrates an exemplary a personal hydration system in the form of a reservoir.  FIG. 1 . is a top plan view, while  FIG. 2  is a side elevation view. 
           [0004]      FIGS. 3-7  illustrate a pressurized hydration system.  FIG. 3  is a top plan view.  FIGS. 4 and 5  are partial exploded views.  FIG. 6  is a partial cross sectional view.  FIG. 7  illustrates a reservoir being filled with a liquid. 
           [0005]      FIG. 8  illustrates a remote pressurized hydration system. 
           [0006]      FIGS. 9-12  illustrate balloon pressurized hydration systems. 
           [0007]      FIGS. 13-14  illustrate manually pressurized hydration systems. 
           [0008]      FIGS. 15-16  illustrate self-cooling pressurized hydration systems. 
           [0009]      FIGS. 17-21  illustrate pressurized hydration systems integrated into kayaks 
       
    
    
     DETAILED DESCRIPTION 
       [0010]    INTRODUCTION: Various embodiments of the present invention assist in expelling liquid from a personal hydration system. The following description is broken into sections. The first provides an example of a conventional hydration system. The second section provides an example of a pressurized hydration system. The third section describes a remote pressurized hydration system. The fourth section describes various balloon pressurized hydration systems. The fifth section discusses manual pressurization, and the last section describes a self-cooling pressurized hydration system. 
         [0011]    In the various examples discussed below, the term reservoir is used. While the figures show specific examples of bag like reservoirs, other types of containers such as sports bottles and the like are encompassed by the term reservoir. In short, the term reservoir refers to any object in which a drinking fluid can be sealed. An interesting example of a reservoir discussed below is a kayak seat. 
         [0012]    NON-PRESSURIZED HYDRATION SYSTEM:  FIGS. 1 and 2  illustrate an exemplary hydration system in the form of reservoir  10 . Reservoir  10  includes bladder  12  formed by opposing walls  14  and  16  (seen best in  FIG. 2 ), fill port  18 , exit port  20 , and drinking tube  22 . Walls  14  and  16  form an internal compartment  24  adapted to store a volume of fluid such as water. Walls  14  and  16  can be formed from a flexible, waterproof material. An example of a suitable material is polyurethane, although others may be used. The size and shape of compartment  24  may vary, such as depending upon the desired application with which the system will be used, any pack into which reservoir  10  will be placed, the mechanism by which the reservoir  10  will be transported, and the volume of drink fluid that compartment  24  is designed to hold. 
         [0013]    The length of drinking tube  22  may vary depending upon the desired distance between the user&#39;s mouth and the location where reservoir  10  is positioned, such as on a user&#39;s back, waist, inside a user&#39;s garments, on a user&#39;s bike or other equipment. An end of drinking tube  22  is connected to reservoir  10  at exit port  20  through which fluid in compartment  24  is received into tube  22 . In other words, compartment  24  is in fluid communication with exit port  20 . 
         [0014]    Reservoir  10  includes fill port  18  through which fluid may be poured into or removed from compartment  24 . Fill port  18  also provides an opening through which compartment  24  may be accessed for cleaning. As shown, fill port  18  includes collar  26  and cap  28 . Collar  26  is sealed to wall  14 . Cap  28  is removeably sealed to collar  26 . For example, collar  26  and cap  28  may include mating threads and a gasket allowing cap  28  to be twisted off to be separated from collar  26  and twisted on to be sealed to collar  26 . With cap  28  removed, a fluid can be poured into compartment  24  through collar  26  of fill port  18 . Cap  28  can then be sealed to collar  26  securing the fluid in compartment  24 . User supplied suction applied to drinking tube  22  can then pull the fluid out of compartment  24  through exit port  20 . 
         [0015]    PRESSURIZED HYDRATION SYSTEM:  FIGS. 3-7  illustrate an exemplary pressurized hydration system in the form of reservoir  30 . In this example, reservoir  30  includes bladder  32  formed by opposing walls  50  and  52  (seen best in  FIG. 6 ), fill port  34 , exit port  36 , drinking tube  38 , and bite valve  40 . Walls  50  and  52  form an internal sealable compartment  54  (seen best in  FIG. 6 ) adapted to store a volume of fluid such as water. Walls  50  and  52  can be formed from a flexible, waterproof material. An example of a suitable material is polyurethane, although others may be used. The size and shape of compartment  54  may vary, such as depending upon the desired application with which the system will be used, any pack into which reservoir  10  will be placed, the mechanism by which the reservoir  30  will be transported, and the volume of drink fluid that compartment  54  is designed to hold. 
         [0016]    The length of drinking tube  38  may vary depending upon the desired distance between the user&#39;s mouth and the location where reservoir  30  is positioned, such as on a user&#39;s back, waist, inside a user&#39;s garments, on a user&#39;s bike or other equipment. An end of drinking tube  38  is connected to reservoir  30  at exit port  36  through which fluid in compartment  54  is received into tube  38 . In other words, compartment  54  is in fluid communication with exit port  36 . 
         [0017]    Reservoir  10  includes fill port  34  through which fluid may be poured into or removed from compartment  54 . Reservoir  10  includes pressure port  42  and pressure regulator  46 . Pressure port  42  represents an inlet through which a pressurizing gas can enter into compartment  54 . Pressurizing gasses can be provided via a pressurizer such as cartridge holder  44  and cartridge  48  (best seen in  FIGS. 5 and 6 ). Cartridge holder  44  is configured to hold and cause cartridge  48  to mate with pressure port  42  in such a manner that pressurizing gas is allowed to expel from cartridge  48  and enter compartment  54 . Pressure regulator  46  functions to regulate the level at which internal compartment is pressurized. Pressure regulator  46  may also function as a manual on/off switch and may regulate a rate at which pressurizing gas is allowed to escape cartridge  48  and enter compartment  54 . 
         [0018]    Once compartment  54  is filled with a liquid and pressurized, activation of bite valve results in the liquid being forced out of compartment  54  through drinking tube  38  and into a person&#39;s mouth. In this manner the person utilizing the reservoir  30  need only bite on bite valve  40  and liquid is expelled. The person need not suck to draw liquid from compartment  54 . 
         [0019]    Focusing on  FIGS. 4 and 5 , cartridge  48  is shown to fit inside cartridge holder  44 . Cartridge holder  44  threads into pressure port  42  causing cartridge  48  to engage pressure port  52  allowing pressurizing gas to be expelled from cartridge  48  through pressure port  42  and into compartment  54 . 
         [0020]    It is noted that fill port  34 , exit port  36 , and pressure port  42  are shown as being formed in wall  50  such that fill port  34  provides ingress for liquid into compartment  54 . Likewise, pressure port  42  provides ingress for pressurizing gasses into compartment  54 , and exit port  36  provides an egress for liquid out of compartment  54 . While show as being formed in wall  50 , one or more of ports  34 ,  36 , and  42  may be formed in wall  52  or elsewhere so long as they provide the noted ingress and egress functions. Furthermore, two or more of ports  34 ,  36 , and  42  may be the same port. 
         [0021]    Moving to  FIG. 6 , reservoir  32  is shown to include baffles  56  and  58  that connect wall  50  to wall  52  within compartment  54 . As compartment  54  is pressurized, it tends to expand separating walls  50  and  52 . Baffles  50  and  52  operate to oppose expansion or “footballing” of walls  50  and  52  as pressurizing gasses are introduced into compartment  54 . In  FIG. 7 , it is shown that cartridge holder  44  can also function as a handle when filling reservoir  32 . 
         [0022]    REMOTE PRESSURIZED HYDRATION SYSTEM:  FIG. 8  illustrates an exemplary remote pressurized hydration system in the form of reservoir  60 . Reservoir  60  includes fill port  62 , swivel port  64 , transfer tube  66 , pressure port  68 , cartridge holder  70 , and pressure regulator  72 . Swivel port  64  serves to provide an input for pressurizing gas into reservoir  60  via transfer tube  66 . As its name suggests swivel port  64  swivels allowing transfer tube  66  to rotate about a point. While not shown, swivel port  64  may be integrated into fill port  62 . For example, fill port  62  is shown to include a cap that closes fill port  62 . Swivel port  64  could be formed in that cap such that when fill port  62  is closed, swivel port  64  would provide input for pressurizing gases through the cap and into reservoir  60 . 
         [0023]    Transfer tube  66  couples pressure port  68  to swivel port  64  and serves as a sealed transfer allowing pressurizing gas to pass from pressure port  68  through swivel port  64 , and into reservoir  60 . Pressure port  68  represents an inlet through which a pressurizing gas can ultimately be introduced into reservoir  60 . Pressurizing gasses can be provided via a cartridge such as cartridge  48  seen in  FIGS. 5 and 6 . Cartridge holder  70  is configured to hold a cartridge allowing it to mate with pressure port  68  in such a manner that pressurizing gas is allowed to exit the cartridge and enter reservoir  60  via transfer tube  66  and swivel port  64 . Pressure regulator  72  functions to regulate the level at which reservoir  60  is pressurized. Pressure regulator  72  may also function as a manual on/off switch and may regulate a rate at which pressurizing gas is allowed to escape a cartridge. 
         [0024]    A length of transfer tube  66  is selected to allow for convenient access to pressure port  68  and regulator  72 . For example pressure port  68  may be attached to or integrated within a shoulder strap of a backpack used to carry reservoir  60 . In this manner, a person can more easily access pressure port  68  and regulator  72  while wearing that backpack. 
         [0025]    BALLOON PRESSURIZED HYDRATION SYSTEM: In the Examples of  FIGS. 3-7 , reservoir  32  included an internal compartment  54  containing a liquid. The reservoir  32  is pressurized by introducing pressurizing gas into compartment  54  along with the liquid.  FIGS. 9-12  illustrate another embodiment in which pressurizing gas is introduced into a balloon fitted within a reservoir. Expansion of that balloon pressurizes the reservoir. 
         [0026]    Starting with  FIGS. 9 and 10 , reservoir  74  includes bladder  76  defining an internal compartment for containing a liquid. Balloon  78  is fitted within that internal compartment with the liquid. Reservoir  74  includes support members  80  designed to help prevent reservoir  78  from “footballing” or over expanding as balloon  78  is pressurized. Reservoir  74  also includes pressure port  82  and pressure regulator  86 . Pressure port  82  represents an inlet through which a pressurizing gas can enter into balloon  78  through passage  88 . Pressurizing gasses can be provided via a cartridge such as cartridge  48  seen in  FIGS. 5 and 6 . A cartridge holder  84  is configured to hold and cause the cartridge to mate with pressure port  82  in such a manner that pressurizing gas is allowed to exit the cartridge  48  and enter balloon  78 . Pressure regulator  86  functions to regulate the level at which balloon  78  is pressurized. Pressure regulator  86  may also function as a manual on/off switch and may regulate a rate at which pressurizing gas is allowed to escape a cartridge and enter balloon  78 . Introduction of pressurizing gas causes balloon  78  to expand pressurizing bladder  76 . 
         [0027]    Moving to  FIGS. 11 and 12 , reservoir  90  includes bladder  92  into which balloon  94  is fitted. Reservoir  90  includes a top located entry port  96  through which liquid can be introduced into an internal compartment of bladder  92 . Reservoir  90  includes central support member  98  designed to help prevent reservoir  90  from “footballing” or over expanding as balloon  94  is pressurized. Reservoir  90  also includes pressure port  100  and pressure regulator  104 . Pressure port  100  represents an inlet through which a pressurizing gas can enter into balloon  94 . Pressurizing gasses can be provided via a cartridge such as cartridge  48  seen in  FIGS. 5 and 6 . A cartridge holder  102  is configured to hold and cause the cartridge to mate with pressure port  100  in such a manner that pressurizing gas is allowed to exit the cartridge and enter balloon  94 . Pressure regulator  104  functions to regulate the level at which balloon  94  is pressurized. Pressure regulator  104  may also function as a manual on/off switch and may regulate a rate at which pressurizing gas is allowed to escape a cartridge and enter balloon  94 . Introduction of pressurizing gas causes balloon  94  to expand pressurizing bladder  92 . 
         [0028]    MANUAL PRESSURIZATION: While  FIGS. 3-12  illustrate a pressurizer in the form of holder and cartridge such as holder  44  and cartridge  48 . Other means for pressurizing are also contemplated. In  FIGS. 13 and 14 , for example, a pressurizer includes a bulb style pump such as squeeze pump  106 . 
         [0029]    Referring first to  FIG. 13 , reservoir  108  includes bladder  110 , fill port  112 , exit port  114 , exit tube  116 . One end of exit tube  116  is coupled to exit port  114 . The other end of exit tube  116  is shown to include female coupler  118 . Also shown are drinking tube  120  and squeeze pump  106 . One end of drinking tube  120  includes bite valve  122  while the other end includes male coupler  124 . Squeeze pump  106  include male coupler  126 . Male couplers  124  and  126  are configured to be removably coupled to female coupler  118 . Female coupler  118  includes a check valve (not shown) that is opened when coupled to either one of male couplers  124  or  126  allowing passage of fluids and gasses through female coupler  118 . When decoupled, the check valve is closed blocking the passage fluids and gasses through female coupler  118 . 
         [0030]    Male coupler  126  of squeeze pump  106  can be coupled to and decoupled from female coupler  118  of exit tube  116 . When coupled, the repeated manual squeezing of squeeze pump  106  forces pressurizing gas in the form of air into bladder  110  via exit tube  116 . Also, male coupler  124  of drinking tube  120  can be coupled to and decoupled from female coupler  118  of exit tube  116 . When coupled, fluid contained in bladder  110  is allowed to pass into and through drinking tube  120 . In this example, port  114  serves as an exit port through which fluid can exit bladder  110  and as a pressure port through which pressurizing gasses can enter bladder  110 . 
         [0031]    Once bladder  110  is filled with a liquid and pressurized using squeeze pump  106  and male coupler of drinking tube  124  is coupled to female coupler  118 , activation of bite valve  122  results in the liquid being forced out of bladder  110  through exit tube drinking tube  38  and into a person&#39;s mouth. In this manner the person utilizing the reservoir  30  need only bite on bite valve  40  and liquid is expelled. The person need not suck to draw liquid from compartment  54 . 
         [0032]    Referring now to  FIG. 14 , reservoir  128  includes bladder  130 , fill port  132 , exit port  134 , drinking tube  136 , bite valve  138 , swivel port  140 , transfer tube  142 , and female coupler  144 . Also shown is squeeze pump  106  which includes male coupler  146  configured to couple to and decoupled from female coupler  144  of transfer tube  142 . Female coupler  144  includes a check valve (not shown) that is opened when coupled to male coupler  146  allowing squeezed pump  106  to force pressurizing gasses through transfer tube  140  and into bladder  130 . When decoupled, the check valve is closed blocking the passage of fluids and gasses through female coupler  144 . 
         [0033]    Swivel port  140  serves to provide an input for pressurizing gas into reservoir  128  via transfer tube  142 . As its name suggests swivel port  140  swivels allowing transfer tube  142  to rotate about a point. With male coupler  146  of squeeze pump  106  coupled to female coupler  144  of transfer tube  142 , the repeated manual squeezing of squeeze pump  106  forces pressurizing gasses in the form of air through transfer tube  142  into bladder  130 . While not shown, swivel port  140  may be integrated into fill port  132 . For example, fill port  132  is shown to include a cap that closes fill port  132 . Swivel port  140  could be formed in that cap such that when fill port  1322  is closed, swivel port  140  would provide input for pressurizing gases through the cap and into bladder  130 . 
         [0034]    A length of transfer tube  142  is selected to allow for convenient access to squeeze pump  106 . For example squeeze pump  106  may be attached to or integrated within a shoulder strap of a backpack used to carry reservoir  128 . In this manner, a person can more easily squeeze pump  106  while wearing that backpack. 
         [0035]    Once bladder  110  is filled with a liquid and pressurized using squeeze pump  106 , activation of bite valve  138  results in the liquid being forced out of bladder  130  through drinking tube  136  and into a person&#39;s mouth. In this manner the person utilizing the reservoir  128  need only bite on bite valve  138  and liquid is expelled. The person need not suck to draw liquid from bladder  130 . 
         [0036]    SELF COOLING PRESSURIZED HYDRATION SYSTEM:  FIG. 15  illustrates a reservoir  148  configured for use of a pressurized gas to cool its contents. As illustrated, reservoir  148  includes bladder  150 , fill port  148 , pressure port  154 , cartridge holder  156 , transfer coil  160 , and gas exit port  162 . 
         [0037]    Bladder  150  defines an internal compartment for containing a liquid. Fill port  152  provides a sealable opening through which liquid can be introduced into bladder  150 . Pressure port  154  represents an inlet through which a pressurizing gas can enter into transfer coil  160 . Pressurizing gasses can be provided via a cartridge such as cartridge  48  seen in  FIGS. 5 and 6 . A cartridge holder  156  is configured to hold and cause the cartridge to mate with pressure port  154  in such a manner that pressurizing gas is allowed to exit the cartridge and enter transfer coil  160 . Pressure regulator  158  functions to as a manual on/off switch and may regulate a rate at which pressurizing gas is allowed to escape a cartridge. Introduction of gas from a pressurized cartridge provides a cooling effect on the contents of bladder  150 . Gas exit port  162  provides a means of escape for the gas. The winding path of transfer coil  160  provides additional surface area allowing the escaping case to more effectively cool the contents of bladder  150 . 
         [0038]    Reservoir  148  may be made of a series of adjacent layers of material. A first pair adjacent layers of reservoir  148  form a first internal compartment for holding a liquid. A second pair of adjacent layers form a second internal compartment for holding a cooling gel or other material that can be chilled or frozen to keep the liquid in the first compartment cool. It is noted that the first and second pair of layers may share a common layer such that reservoir  148  is made of three adjacent layers with the center layer being common to each pair of adjacent layers. Transfer coil  164  may be formed between the second pair of layers containing the cooling gel. In this manner, gas escaping a pressurized cartridge and passing through transfer coil  160  can chill the cooling gel. 
         [0039]      FIG. 16  illustrates a reservoir  166  configured for use of a pressurized gas to cool its contents and to pressurize an internal compartment. As illustrated, reservoir  166  includes bladder  168 , fill port  170 , pressure port  172 , cartridge holder  174 , regulator  176 , transfer coil  178 , and transfer port  180 . 
         [0040]    Bladder  168  defines an internal compartment for containing a liquid. Fill port  170  provides a sealable opening through which liquid can be introduced into bladder  168 . Pressure port  172  represents an inlet through which a pressurizing gas can enter into transfer coil  178 . Pressurizing gasses can be provided via a cartridge such as cartridge  48  seen in  FIGS. 5 and 6 . A cartridge holder  174  is configured to hold and cause the cartridge to mate with pressure port  172  in such a manner that pressurizing gas is allowed to exit the cartridge and enter transfer coil  178 . Gases pass through transfer coil  178  and travel through transfer port  180  pressurizing the internal compartment of reservoir  166 . Pressure regulator  176  functions to regulate the level at which the internal compartment is pressurized. Pressure regulator  176  may also function as a manual on/off switch and may regulate a rate at which pressurizing gas is allowed to escape a cartridge and enter the internal compartment. 
         [0041]    Introduction of gas from a pressurized cartridge provides a cooling effect on the contents of bladder  168 . The winding path of transfer coil  178  provides additional surface area allowing the escaping case to more effectively cool the contents of bladder  168 . Transfer port  180  provides an internal connection between transfer coil  178  and the internal compartment holding the liquid. 
         [0042]    PRESSURIZED KAYAK INTEGRATED HYDRATION SYSTEM: As discussed above, a pressurized hydration system can be carried on a user&#39;s back or waist, inside a user&#39;s garments, on a user&#39;s bike or other equipment.  FIGS. 17-21  illustrate an example in which a pressurized irrigation system is integrated into a kayak. 
         [0043]      FIG. 17  illustrates a kayak  184  and paddler  186 . Paddler  186  is sitting on seat  188  with his legs inserted into the kayak. Paddler  186  is wearing a skirt that provides a seal for preventing water from entering the kayak. While serving an important purpose, the skirt prevents paddler  186  from reaching into kayak  184  and retrieving a beverage. 
         [0044]    In the example of  FIG. 17 , reservoir  190  is positioned within kayak  184 . While shown as being placed behind seat  188 , reservoir  190  can be placed anywhere within the interior of kayak  184 . Transfer tube  192  extends from an exit port on reservoir  190 . Pressurizer  194  extends from a pressure port on reservoir  190 . Prior to sealing himself into kayak  184  with the skirt, paddler  186  can fill reservoir  190  with a liquid through a fill port. Paddler  186  can then pressurize reservoir  190  using pressurizer  194 . Here, pressurizer  194  includes a squeeze pump. 
         [0045]    Kayak  184  is shown to include a recessed deck port  196  on its forward deck. Deck port  196  represents generally any structure configured to allow fluid to flow from reservoir  190  through transfer tube  192  and pass out of kayak  184 . Along these lines, transfer tube  192  is connected to deck port  196  within the interior of kayak  184  creating a fluid flow path between reservoir  190  and deck port  196 . Drinking tube  198  connects to deck port  196  outside kayak  196  and includes a valve  200 . When reservoir  190  is pressurized, paddler  186  can bite down on valve  200  allowing the liquid contents of reservoir to be forced though tubes  192  and  198  and expelled out of valve  200 . 
         [0046]    Deck port  196  may include one or more couplers with check valves that are closed unless those couplers are coupled to transfer tube  192  and drinking tube  198 . For example, deck port  196  may include an external female coupler with a check valve that is opened when the female coupler is coupled to a male coupler of drinking tube  198 . In this manner, when drinking tube  198  is decoupled from deck port  196 , the forward deck remains sealed. In other examples, deck port  196  could be replaced with a skirt port, that is, a port formed in the skirt worn by paddler  186 . 
         [0047]      FIG. 18  illustrates a kayak  202  and paddler  204 . Paddler  204  is sitting on seat  206  with his legs inserted into the kayak. Paddler  186  is wearing a skirt that provides a seal for preventing water from entering the kayak. While serving an important purpose, the skirt prevents paddler  204  from reaching into kayak  202  and retrieving a beverage. 
         [0048]    In the example of  FIG. 18 , reservoir  208  is positioned within kayak  202 . While shown as being placed behind seat  206 , reservoir  208  can be placed anywhere within the interior of kayak  202 . Transfer tube  210  extends from an exit port on reservoir  208 . Kayak  202  is shown to include a recessed deck port  212  on its forward deck. Deck port  212  represents generally any structure configured to allow fluid to flow from reservoir  208  through transfer tube  210  and pass out of kayak  202 . Along these lines, transfer tube  210  is connected to deck port  212  within the interior of kayak  202  creating a fluid flow path between reservoir  208  and deck port  212 . Drinking tube  214  connects to deck port  212  outside kayak  202  and includes a valve  216 . When reservoir  208  is pressurized, paddler  204  can bite down on valve  216  allowing the liquid contents of reservoir  208  to be forced though tubes  210  and  214  and expelled out of valve  216 . 
         [0049]    Deck port  212  may include one or more couplers with check valves that are closed unless those couplers are coupled to transfer tube  210  and drinking tube  214 . For example, deck port  212  may include an external female coupler with a check valve that is opened when the female coupler is coupled to a male coupler of drinking tube  214 . In this manner, when drinking tube  214  is decoupled from deck port  212 , the forward deck remains sealed. In other examples, deck port  212  could be replaced with a skirt port, that is, a port formed in the skirt worn by paddler  204 . 
         [0050]    Also shown is a pressurize  218  configured to couple to deck port  212  once paddler  204  decouples drinking tube  214  from deck port  212 . Prior to sealing himself into kayak  202  with the skirt, paddler  204  can fill reservoir  208  with a liquid through a fill port. Once seated in kayak  202 , paddler  204  can couple pressurizer  218  to deck port  212  and pressurize reservoir  208 . Here, pressurizer  218  includes a squeeze pump. Once pressurized, paddler  204  can decouple pressurizer  218  and recouple drinking tube  214  to deck port  212 . 
         [0051]      FIG. 19  illustrates a kayak  220  and paddler  222 . Paddler  222  is sitting on seat  224  with his legs inserted into the kayak. Paddler  222  is wearing a skirt that provides a seal for preventing water from entering the kayak. While serving an important purpose, the skirt prevents paddler  222  from reaching into kayak  220  and retrieving a beverage. 
         [0052]    In the example of  FIG. 19 , seat  224  also serves as a reservoir for containing a liquid for drinking. In this example, seat  224  includes a fill port  226  through which paddler  222  can pour a liquid into an internal compartment within seat  224 . Transfer tube  192  extends from an exit port on seat  224 . Pressurizer  230  extends from a pressure port on seat  224 . Prior to sealing himself into kayak  220  with the skirt, paddler  226  can fill the internal compartment of seat  224  with a liquid. Paddler  222  can then pressurize that compartment using pressurizer  230 . Here, pressurizer  230  includes a squeeze pump. 
         [0053]    Kayak  220  is shown to include a recessed deck port  232  on its forward deck. Deck port  232  represents generally any structure configured to allow fluid to flow from seat  224  through transfer tube  228  and pass out of kayak  220 . Along these lines, transfer tube  228  is connected to deck port  232  within the interior of kayak  220  creating a fluid flow path between seat  224  and deck port  232 . Drinking tube  234  connects to deck port  232  outside kayak  220  and includes a valve  236 . When the internal compartment of seat  224  is pressurized, paddler  222  can bite down on valve  236  allowing the liquid contents of seat  224  to be forced though tubes  228  and  234  and expelled out of valve  236 . 
         [0054]    Deck port  232  may include one or more couplers with check valves that are closed unless those couplers are coupled to transfer tube  228  and drinking tube  234 . For example, deck port  232  may include an external female coupler with a check valve that is opened when the female coupler is coupled to a male coupler of drinking tube  234 . In this manner, when drinking tube  234  is decoupled from deck port  232 , the forward deck remains sealed. In other examples, deck port  232  could be replaced with a skirt port, that is, a port formed in the skirt worn by paddler  222 . 
         [0055]      FIG. 20  illustrates a kayak  238  and paddler  240 . Paddler  240  is sitting on seat  242  with his legs inserted into the kayak. Paddler  240  is wearing a skirt that provides a seal for preventing water from entering the kayak. While serving an important purpose, the skirt prevents paddler  240  from reaching into kayak  238  and retrieving a beverage. 
         [0056]    In the example of  FIG. 20 , reservoir  244  is positioned within kayak  238 . While shown as being hung behind seat  242 , reservoir  240  can be placed anywhere within the interior of kayak  238 . Transfer tubes  246  and  248  extend from one or more exit ports on reservoir  244 . Pressurizer  250 , in the form of a squeeze pump, is coupled to transfer tube  246 . Kayak  238  is shown to include a recessed deck port  252  on its rear deck. Deck port  252  represents generally any structure configured to allow fluid to flow from reservoir  244  through transfer tube  248  and pass out of kayak  238 . Along these lines, transfer tube  248  is connected to deck port  252  within the interior of kayak  238  creating a fluid flow path between reservoir  244  and deck port  252 . Drinking tube  254  connects to deck port  252  outside kayak  238  and includes a valve  256 . When pressurizer  250  is used to pressurize reservoir  244 , paddler  240  can bite down on valve  256  allowing the liquid contents of reservoir  244  to be forced though tubes  248  and  254  and expelled out of valve  256 . When not in use, clamp  258 , affixed to the deck of kayak  238 , can be used to secure drinking tube  254 . 
         [0057]    Clamp  258  is positioned to be within reach of paddler  240 . In a particular example, deck port  252  is positioned to one side of the rear deck of kayak  260 . Clamp  258  is positioned on the same side of the beck but either beside paddler  240  or further forward on the deck of kayak  238 . In this manner, drinking tube  254  can rest on the deck at the paddler&#39;s side when not in use. 
         [0058]    Deck port  252  may include one or more couplers with check valves that are closed unless those couplers are coupled to transfer tube  248  and drinking tube  254 . For example, deck port  252  may include an external female coupler with a check valve that is opened when coupled to a male coupler of drinking tube  254 . In this manner, when drinking tube  254  is decoupled from deck port  252 , the rear deck remains sealed. In other examples, deck port  252  could be replaced with a skirt port, that is, a port formed in the skirt worn by paddler  240 . 
         [0059]      FIG. 21  illustrates a kayak  260  and paddler  262 . Paddler  262  is sitting on seat  264  with his legs inserted into the kayak. Paddler  262  is wearing a skirt that provides a seal for preventing water from entering the kayak. While serving an important purpose, the skirt prevents paddler  262  from reaching into kayak  264  and retrieving a beverage. 
         [0060]    In the example of  FIG. 21 , reservoir  266  is positioned within kayak  238  adjacent to rear bulkhead  268 . While shown as being hung from rear bulkhead  268 , reservoir  262  can be positioned in any desirable manner within the interior of kayak  260 . Transfer tubes  270  and  272  extend from one or more exit ports on reservoir  266 . Pressurizer  274 , in the form of a squeeze pump, is coupled to transfer tube  270 . Kayak  260  is shown to include a recessed deck port  276  on its rear deck. Deck port  276  represents generally any structure configured to allow fluid to flow from reservoir  266  through transfer tube  272  and pass out of kayak  260 . Along these lines, transfer tube  272  is connected to deck port  276  within the interior of kayak  260  creating a fluid flow path between reservoir  266  and deck port  276 . Drinking tube  278  connects to deck port  276  outside kayak  260  and includes a valve  280 . When pressurizer  274  is used to pressurize reservoir  266 , paddler  262  can bite down on valve  280  allowing the liquid contents of reservoir  266  to be forced though tubes  272  and  278  and expelled out of valve  280 . When not in use, drinking tube  262  hangs over a shoulder of paddler  262  and may be held by a clamp on paddler&#39;s life vest. 
         [0061]    In a particular example, deck port  252  is positioned along the center longitudinal axis of the read deck of kayak  260  at a position close behind paddler  262 . This allows drinking tube  278  to conveniently pass up the paddler&#39;s back and over the paddler&#39;s shoulder placing valve  280  within easy access. 
         [0062]    Deck port  276  may include one or more couplers with check valves that are closed unless those couplers are coupled to transfer tube  272  and drinking tube  278 . For example, deck port  276  may include an external female coupler with a check valve that is opened when coupled to a male coupler of drinking tube  278 . In this manner, when drinking tube  278  is decoupled from deck port  276 , the rear deck remains sealed. In other examples, deck port  276  could be replaced with a skirt port, that is, a port formed in the skirt worn by paddler  262 . 
         [0063]    CONCLUSION: The various examples discussed above allow for the pressurization of a hydration system where that pressurization functions to more pressurized efficiently expel liquid from a reservoir. Pressurization can be achieved through a variety of techniques including the use of pressurized gas cartridges and manual bulb type pumps. Where pressurized cartridges are used, the escaping gasses can be used to cool a reservoir&#39;s contents. Furthermore, the reservoir can be worn as part of a pack or even integrated into a vehicle such as a kayak.