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WO2009023849A1 - Sac gourde à chambre multiple - Google Patents

Sac gourde à chambre multiple Download PDF

Info

Publication number
WO2009023849A1
WO2009023849A1 PCT/US2008/073362 US2008073362W WO2009023849A1 WO 2009023849 A1 WO2009023849 A1 WO 2009023849A1 US 2008073362 W US2008073362 W US 2008073362W WO 2009023849 A1 WO2009023849 A1 WO 2009023849A1
Authority
WO
WIPO (PCT)
Prior art keywords
bladder
tube
outlet tube
hydration pack
hydration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2008/073362
Other languages
English (en)
Inventor
Luke E. Kelly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Coleman Co Inc
Original Assignee
Coleman Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Coleman Co Inc filed Critical Coleman Co Inc
Publication of WO2009023849A1 publication Critical patent/WO2009023849A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/16—Water-bottles; Mess-tins; Cups
    • A45F3/20—Water-bottles; Mess-tins; Cups of flexible material; Collapsible or stackable cups

Definitions

  • Hydration is important for a variety of outdoor activities involving physical exercise such as biking, hiking, camping, running or other activities. While engaged in these activities, however, hydrating fluids are usually not easily accessible in the outdoors. Moreover, fluids are heavy and, as a result, it is uncomfortable to carry them while engaged in outdoor activities .
  • hydration packs have developed, which are hydration systems that a user wears on his or her body, usually in the form of a backpack or a waist pack.
  • the backpack or waist pack contains one or more bladders which contain fluids. Often a hose leads from each bladder allowing a user to drink fluids from the bladder without having to remove the backpack or waist pack.
  • hydration packs When engaged in particularly stressful outdoor activities, special fluids are often consumed in order to help one's body perform at its best and avoid sickness and injury. For instance, people often use their hydration packs in order to carry fluids rich in electrolytes to replace electrolytes lost through perspiration. In addition, hydration packs may be filled with fluids having sugars or other caloric substances in order to provide a quick source of energy.
  • a multiple chamber hydration pack includes a first bladder and a second bladder.
  • a first tube leads from the first bladder and a second tube leads from the second bladder.
  • the first tube and second tufoe meet at a junction that fluidly connects the first and second tube to a drinking tube.
  • the first or second tube may contain a valve for adjusting the rate of flow through the tube in order to adjust the ratio of fluids from the first bladder and second bladder mixing together in the drinking tube.
  • FIGURE 1 is a side perspective view of a hydration pack in accordance with an embodiment
  • FIG. 2 is a side perspective view of another embodiment of a hydration pack.
  • FIG. 1 shows a hydration pack 10 in accordance with an embodiment.
  • the hydration pack 10 includes a first bladder 12 and a second bladder 14.
  • the first bladder 12 and second bladder 14 may be separated, or may be connected together along a common side by a support surface 16, which may be a piece of material such as fabric configured to hold and support the first bladder 12 and second bladder 14.
  • the first bladder 12 may be a piece of material such as fabric configured to hold and support the first bladder 12 and second bladder 14.
  • O * ⁇ and second bladder 14 are permanently sewn onto the support surface 16, but they may also be removably attached to the support surface 16 in pockets or other structures.
  • the first bladder 12, second bladder 14, and support surface 16 may comprise a single piece of material.
  • the first and second bladders 12, 14 may also be connected directly to one another, connected by another mechanism, or may be separated.
  • the hydration pack 10 may also include other features such as a handle 18 and straps 19 configured so that the hydration pack 10 may be worn in a manner similar to a conventional backpack.
  • the first bladder 12 is a reservoir having an interior forming a first fluid chamber 20.
  • the first bladder 12 may be formed from rubber, vinyl, or other watertight materials.
  • the first bladder 12 includes a cap 22 which may be removed to provide access to the interior of the first fluid chamber 20.
  • the cap 22 may be positioned at or near the top of the first bladder 12, although it can generally be in any position.
  • the cap 22 and first bladder 12 may be threaded in a manner that the cap 22 may be attached to and removed from the first bladder 12 by rotating the cap 22 clockwise and counterclockwise, respectively.
  • non-threaded caps may also be used.
  • the first bladder 12 includes a first outlet tube 24 extending from the bottom of the first bladder 12.
  • the first outlet tube 24 may be formed from the same or different material as the first bladder 12, and extends from any portion of the first bladder 12.
  • the first outlet tube 24 is fluidly connected to the fluid chamber 20.
  • the second bladder 14 and its components may be configured similarly to the first bladder 12.
  • the second bladder 14 is a reservoir, the interior of which forms a fluid chamber 30.
  • the second bladder 14 includes a cap 32.
  • the second bladder 14 includes a second outlet tube 34 extending from the bottom of the second bladder 14.
  • the first outlet tube 24 and the second outlet tube 34 meet together at a junction 36 in a manner such that the first outlet tube 24 and the second outlet, tube 34 are fluidly connected and lead to a drinking tube 38.
  • the junction 36 may comprise a venturi siphon, which is not shown, but known in the art.
  • An example of a venturi siphon ⁇ also known as a siphon injector) can be found at http : //www. spray . com/applications/application reference/Inje ctor Training Guide.pdf, a copy of which can be found attached as Exhibit A.
  • venturi siphons are fittings having an internal reduction in diameter with a tap occurring at or immediately after the reduction in diameter.
  • Fluid flowing past the reduction in diameter changes pressure in a manner that a vacuum is created at or immediately after the reduction in diameter.
  • the vacuum causes fluids to enter the fitting from tubes or pipes fluidly connected to the tap and mix with the fluids that have passed the reduction in diameter.
  • the second outlet tube 34 is connected to the tap while the first outlet tube 24 is connected to the venturi siphon before the reduction in diameter and the drinking tube 38 connected to the venturi siphon after the reduction in diameter.
  • a flow rate adjustment valve 40 may be included in the venturi siphon and be configured to reduce the diameter of the second outlet tube 34 relative to the diameter of the first outlet tube 24.
  • junction 36 may comprise simple fluid connection of the first outlet tube 24, the second outlet tube 34, and the drinking tube 38, perhaps utilizing a fitting known as a "T." Such a juncture may still utilize a venturi effect, via an aspirator configuration, if the pressure drop across the T is sufficient.
  • Any general flow rate valve may be alternatively or additionally located at any position in the first outlet tube 24 or second outlet tube 34, or both, between the junction 36 and the first bladder 12 or second bladder 14.
  • the end of the drinking tube 38 opposite the junction 36 may include a bite valve or other type of valve (not shown) . Bite valves are known in the art of hydration packs and, generally, are valves which open when users bite down on them.
  • the first bladder 12 is filled with a liquid. This is accomplished by removing the cap 22, pouring liquid into the first fluid chamber 20 and replacing the cap 22.
  • the second bladder l € may also be filled with a liquid in a manner similar to the first bladder 12.
  • a user may fill the first bladder 12 with a liquid such as water and the second bladder 14 with a liquid such as a fluid high in electrolytes. The user may then place his or her arms through the straps 19 and wear the hydration pack 10 like a conventional backpack. With the hydration pack 10 on the user' s back the drinking tube 38 can be brought over the user's shoulders.
  • the drinking tube 38 is above the top of the first bladder 12 and second bladder 14 so that gravity does not cause the fluids either the first bladder 12 or the second bladder 14 to escape and flow freely from one bag to another.
  • a one way check valve or other mechanism such as the check valves 50, 52 may also be used to achieve this purpose.
  • An item such as a clip or other device (not shown) may be used to secure the drinking tube 38 in position.
  • the user simply inserts the end of the drinking tube 38 opposite the junction 36 into his or her mouth and applies suction.
  • the suction causes fluids to move from the first bladder 12 to the first outlet tube 24 and from the second bladder 14 to the second outlet tube 34 where they mix together in the drinking tube 38 after passing the junction 36.
  • a venturi siphon is utilized, the mixing of fluids past the junction 36 may be due, at least partially, to the venturi effect whereby fluid passing in the first outlet tube 24 past a reduction in diameter creates a vacuum which draws fluids from the second outlet tube 34 which is fluidly connected to the tap of the venturi siphon.
  • a venturi siphon or other venturi configuration is not utilized, fluids from each bladder 12, 14 mix after the junction 36 due to a difference a low pressure in the drinking tube 38 relative to the pressure in the bladders 12, 14 caused by the suction.
  • a user may manipulate the flow rate adjustment valve 40 so as to cause the diameter of the passage through the valve to change.
  • turning the flow rate adjustment valve 40 causes a gradual reduction in the size of the passage through the valve 40 and thereby causes fluid to pass through the valve more slowly than when the valve 40 is fully open.
  • partially closing the flow rate adjustment valve 40 effectively causes the diameter of the second outlet tube 34 to reduce relative to the diameter of the first outlet tube 24, thereby reducing the amount of fluid from the second bladder 14 mixing in the drinking tube 38 with fluid from the first bladder.
  • a similar result may be achieved with one or more valves placed in other places in the first outlet tube 24 or second outlet tube 34, or both, and manipulating a valve to cause more friction at the vaive and, therefore, the amount of fluid passing through the valve and eventually into the drinking tube 38.
  • the first bladder 12 may be filled with water while the second bladder 14 may be filled with a fluid having a high concentration of electrolytes.
  • a user may then manipulate the valve 40 so as to cause only a small amount of electrolytes to enter the drinking tube 38 relative to the amount of water entering the drinking tube 38 when the user sucks fluid through the drinking tube 38.
  • a user may keep a supply of electrolytes, which are difficult to obtain except in specialty stores, in the second bladder 14 while he or she can refill the first bladder 12 as necessary with water, which may be easier to obtain, perhaps from a spring or from a tap.
  • FIG. 2 shows a hydration pack 110 in accordance with another embodiment.
  • the hydration pack 110 includes a first bladder 112 and a second bladder 114.
  • the first bladder 112 and second bladder 114 may be connected together on a support surface 116 which may be similar to the support surface 16.
  • the first bladder 112 and second bladder 114 are in a stacked configuration with the second bladder 114 above the first bladder 112.
  • the hydration pack 110 may include features such as a handle 118 and straps 119.
  • the first bladder 112 of the hydration pack 110 includes a first fluid chamber 120, a cap 122, and a first outlet tube 124.
  • the first outlet tube 124 may be situated on the bottom of the interior of the first fluid chamber 120 and have one end opened to the interior of the first fluid chamber 120.
  • the second bladder 114 includes a second fluid chamber 130, a cap 132, and a second outlet tube 134.
  • the second outlet tube 134 may extend from a lower portion of the interior of the second fluid chamber 130 to an upper portion of the second fluid chamber 130 back down to the lower portion of the interior of the second fluid chamber 130 where it may exit the second bladder 114 and enter the first bladder 112 where it meets the first outlet tube 124 at a junction 136.
  • a strap or other structure may secure the second outlet tube 134 to the upper portion of the second fluid chamber 130.
  • a flow rate adjustment valve 140 similar to the valve 40 may be located in the second outlet tube 134 after the second outlet tube 134 exits the second bladder 114 and before it enters the first bladder 112.
  • the junction 136 fluidly connects the first outlet tube 124, the second outlet tube 134, and a drinking tube 138.
  • the drinking tube 138 leads from the junction 136 and exits the first bladder 112.
  • the junction 136 may or may not incorporate a venturi siphon and, if a venturi siphon is used, a valve (not shown) may be configured to vary the diameter of the second outlet tube 124 relative to the first outlet tube 134 at the tap of the venturi siphon.
  • the system may be configured to otherwise take advantage of the venturi effect, for example by arranging the first outlet tube 124 , the second outlet tube 134, and the drinking tube 138 as an aspirator.
  • a user wears the hydration pack 110 like a backpack, drapes the drinking tube 138 over his or her shoulder or in another comfortable position and sucks fluids through the drinking tube 138 and controls the ratio of fluid from the first bladder 112 to the fluid from the second bladder 134 by manipulating the valve 140.
  • the ratio of fluids may be controlled by varying the diameters of the tubes relative one to another.
  • the second outlet tube 34 may be given a smaller inside diameter relative to the inside diameter of the first outlet tube 24. In this manner, fluids will be drawn from the first fluid chamber 20 quicker than they are drawn from the second fluid chamber 30.
  • a suitable size for the tubes relative one to another may be determined experimentally by placing various fluids in the first bladder 12 and second bladder 14, sucking the fluids out and measuring the ratio of fluids exiting the drinking tube 38.
  • the ratio of fluids may be controlled in the second hydration pack 110 by varying the diameters of the tubes.
  • the hydration packs may be configured to be worn as waist packs or, to be configured into backpacks having a storage chamber for storing personal effects.
  • the first bladders 12, 112 are shown to be approximately the same size as the second bladders 14, 114, respectively. However, the first bladders 12, 112 may be larger or smaller than the second bladders 14, 114, respectively. Insulating material may also be incorporated into any of the hydration packs 10, 110 in order to maintain fluids at a suitable temperature .
  • each hydration pack 10, 110 having two bladders more than two bladders may be incorporated in a manner similar to above.

Landscapes

  • Devices For Dispensing Beverages (AREA)

Abstract

L'invention concerne un sac gourde qui comprend une première vessie et une seconde vessie reliées ensemble, un premier tube partant de la première vessie et un second tube partant de la seconde vessie. Le premier tube et le second tube se rencontrent à une jonction qui relie fluidiquement les premier et second tubes à un tube de boisson. Le premier ou le second tube peut contenir une valve pour régler le débit d'écoulement à travers le tube afin de régler le ratio de fluide de la première vessie et de la seconde vessie se mélangeant ensemble dans le tube de boisson.
PCT/US2008/073362 2007-08-16 2008-08-15 Sac gourde à chambre multiple Ceased WO2009023849A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95619107P 2007-08-16 2007-08-16
US60/956,191 2007-08-16

Publications (1)

Publication Number Publication Date
WO2009023849A1 true WO2009023849A1 (fr) 2009-02-19

Family

ID=39930477

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/073362 Ceased WO2009023849A1 (fr) 2007-08-16 2008-08-15 Sac gourde à chambre multiple

Country Status (1)

Country Link
WO (1) WO2009023849A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150001253A1 (en) * 2012-01-09 2015-01-01 Rocket44 LLC Two Reservoir Fluid Delivery System
US10492552B2 (en) 2016-11-17 2019-12-03 Rainmaker Solutions, Inc. Hydration and audio system
US10502351B2 (en) 2016-07-18 2019-12-10 Rainmaker Solutions, Inc. Wireless actuation system for hydration system
US12252219B1 (en) * 2019-06-20 2025-03-18 Hotwire Development, Llc Anchor system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040089301A1 (en) * 2001-10-09 2004-05-13 Robert Choi Personal hydration system with component connectivity
US20040118942A1 (en) * 2002-07-19 2004-06-24 Courtney William L. Mixed-fluid delivery system for body armor PFD, boater or cyclist
US20040262331A1 (en) * 2003-06-30 2004-12-30 Steven Woolfson Personal water and additive apparatus
US20070090135A1 (en) * 2005-10-25 2007-04-26 Benham Christopher J Single and dual disposable hydration system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040089301A1 (en) * 2001-10-09 2004-05-13 Robert Choi Personal hydration system with component connectivity
US20040118942A1 (en) * 2002-07-19 2004-06-24 Courtney William L. Mixed-fluid delivery system for body armor PFD, boater or cyclist
US20040262331A1 (en) * 2003-06-30 2004-12-30 Steven Woolfson Personal water and additive apparatus
US20070090135A1 (en) * 2005-10-25 2007-04-26 Benham Christopher J Single and dual disposable hydration system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150001253A1 (en) * 2012-01-09 2015-01-01 Rocket44 LLC Two Reservoir Fluid Delivery System
US9149109B2 (en) * 2012-01-09 2015-10-06 Rocket44 LLC Two reservoir fluid delivery system
US10502351B2 (en) 2016-07-18 2019-12-10 Rainmaker Solutions, Inc. Wireless actuation system for hydration system
US11137098B2 (en) 2016-07-18 2021-10-05 Rainmaker Solutions, Inc. Vehicle with personal hydration system
US10492552B2 (en) 2016-11-17 2019-12-03 Rainmaker Solutions, Inc. Hydration and audio system
US12252219B1 (en) * 2019-06-20 2025-03-18 Hotwire Development, Llc Anchor system

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