WO2016018292A1

WO2016018292A1 - Quick filling and self sealing liquid storage bag assembly

Info

Publication number: WO2016018292A1
Application number: PCT/US2014/048855
Authority: WO
Inventors: David M. DODGEN
Original assignee: Apk Gear, Llc
Priority date: 2014-07-30
Filing date: 2014-07-30
Publication date: 2016-02-04

Abstract

A liquid storage bag sealed to a collapsible quick filling and self-sealing fill tube. After filling the storage bag, through the fill tube, to a desired level with water or other fluid, the storage bag is inverted or tipped, thereby collapsing and effectively sealing the fill tube against itself. Air may be bled from the storage bag through a drinking tube or port. After use, the storage bag may be re-filled, or recycled. In one example, the storage bag has a reusable drink port connection and a drinking tube with mouthpiece; and a 4 inch wide fill tube extends at 6 inches into the storage bag, with the last 5 inches creating a funnel to a 2 inch bottom width. In another example, the liquid storage bag may be used to quickly fill emergency water containers.

Description

Title: Quick filling and self sealing liquid storage bag assembly

BACKGROUND OF THE INVENTION - Field of Invention

This patent application relates to a liquid container bag system with a quick filling and self-sealing fill tube, and more particularly to a water storage bag with a quick filling and self-sealing fill tube.

BACKGROUND OF THE INVENTION - Prior art

The prior art includes portable containers and larger water storage bags.

US Patent No. 8,182, 151 to applicant, describes the Aquapodkit™ for providing temporary emergency water storage in bathtubs. The reusable fastening/locking/dispensing sleeve device of the Aquapodkit attaches to a disposable bladder. The sleeve device is designed to accommodate a pump or siphoning device to dispense the water as needed.

Application No. GB5814332 to Moretti describes using a collapsible fill tube that extends to near the bottom of the storage bag,and then sealing the top of the storage bag. After filling the storage bag through the fill tube, the top of the fill tube is thrust into the storage bag, and the mouth of the storage bag is closed by heat sealing. The object of the fill tube is to prevent contamination of the mouth of the storage bag prior to heat sealing.

Prior art hydration devices, such as Camelbak™, typically provide a reusable bag in a backpack or carrier. A fill port is provided in the upper portion of the bag and a discharge port is provided in the lower portion of the bag. A portion of the bag is typically permanently secured to a portion of the fill port assembly so that the seal between the fill port assembly and the bag is formed by an adhesive, heat sealing, or welding, such as ultrasonic or RF welding. Although the drinking tube could be removed from the reservoir and re-used, it is generally not practical to provide disposable bags or reservoirs for this type of design because in addition to the bag itself, portions of both the exit port assembly and the fill port assembly are permanently attached to the bag, and must be provided on the replacement bag. Therefore standard practice with these types of devices is to clean, attempt to dry, and then re -use the existing reservoir.

U.S. Pat. No. 7,311,231 to Noell et al describes replacement or pre-filled bags with a shutoff or check valve provided on the exit port. In one embodiment, pre-filled bags are provided without the fill port. In another embodiment, bags have a fill port. In the case of user-filled replacement bags, this approach also appears to have the disadvantage of requiring portions of both the exit port assembly and the fill port assembly to be attached to the replacement bag. SUMMARY OF INVENTION

The present invention provides an easier and faster way of filling and sealing a liquid storage container.

In one embodiment, a collapsible self sealing fill tube is provided in a disposable liquid storage bag. A spout, valve, re-sealing two part closure, tear section, or access port may be provided. In one example, a liquid storage bag and the flat fill tube are provided as polymers, polyethylene, polypropylene, or other polymer or polymer blend. In this embodiment, the present invention provides an easier and safer method of sealing and protecting the contents of the liquid storage container. In one example, the delivery fittings are detachable and re-usable so that the storage bag and fill tube assembly is curbside recyclable.

The liquid container assembly may be housed inside a box or other container, or may be stacked on other liquid container assemblies. In one example, the liquid container is used to provide emergency water, and the containers may be stacked.

In one example, the collapsible self sealing fill tube 200 is provided as a flat polymeric tubing that is sealed across the top of a flat polymeric storage bag 100. Only the outside of the polymeric fill tubing is sealed to the storage bag, thereby leaving the inner portion of the storage bag and the inner portion of the fill tubing openable for filling (FIG. 5). An upper portion of the flat polymeric fill tube extends outside of the storage bag that is being filled, while the lower portion of the fill tube that extends inside the storage bag tapers and funnels liquids into the storage bag (FIG. 2A). This tapering makes it easier to collapse the fill tube after filling, and provides a better seal. The flexible and pliable inner fill tube provides both convenient filling and a low-cost and rapid seal. When the bag is filled to a desired level below the bottom of the fill tube, and inverted, the inner tubing collapses, thereby sealing the bag (FIG. 6) while still having outer extended portion that can be folded down when contents are in bag. This folded down upper portion is available for quick refilling while in use (FIG. 5). A secondary seal clip may be placed on the folded down upper portion.

In another example, optional water delivery fittings may be cut out and recycled separately from the storage bag.

The components of the quick loading / filling bladder include a fill tube (FIG. IB) with opening at top and funneled bottom which are sealed to a storage bag (FIG. 1 A). This two-piece bag system is used to create a quick filling opening at the top of the storage bag. Once filled, the collapsible fill tube creates a secure seal to the storage bag for sports backpack hydration, emergency drinking water, or for other storage applications. Directions for use include inserting the neck of the fill tube under a faucet, container or other filling apparatus to eliminate any spilling (FIG. 5). Although fill tube sealing is typically automatic when liquid introduction stops, the sealing can be visually confirmed by filling the storage bag to a desired level and then quickly inverting or tipping the storage bag so that liquid surrounds the lower portion of the fill tube. Visual inspection can confirm a leak proof or leak-resistant seal to protect the contents in the storage bag (FIG. 6). Although this seal has proven to be very reliable in both strength and vibration testing, a secondary seal can be provided by folding over or attaching a clip or other seal apparatus to the portion of the fill tube outside of the storage bag.

The quick filling bag can accommodate larger or smaller storage containers and a variety of liquids. The fill tube can be used to enhance current hydration or storage systems on the market that are not disposable. The storage bag can be made in varying sizes to accommodate the container and contents and in varying materials. The storage bag can also connect to other fasteners, tubes and hoses for dispensing.

The storage bag and fill tube can be used to store potable water, fluids, liquids, concentrates, sauces, lotions, oils, etc. The current invention is not limited to the aforementioned contents. The storage bag can also accommodate multiple quick loading ports and multiple compartments for filling and or separation of certain liquids, such as epoxies, before combining.

The storage bag with fill tube can be placed or stored in anything that can support its weight. The storage bag may be constructed of thicker outer materials while the inner fill tube is still very flexible and collapsible for filling, thereby providing a check valve type of operation . Possible storage places include, but are not limited to: bathtubs, sinks, crates, drums, barrels, containers, coolers, storage tanks, tubs, tanker trucks, bulk containers, backpacks, carrying bags, and fanny packs.

By providing more efficient and economical filling, sealing, and storage, the current invention permits the consumer to replace the bags only. In some examples, the storage bags may be reused one or more times before disposal. For potable water applications, the reuse is typically limited in duration in order to prevent contamination.

Example- hydration bag

This example addresses the hydration needs of the active person while considering sanitation issues and ease of use. The fill tube provides an easier and faster way of filling and sealing the contents in a liquid storage bag.

In one embodiment, a disposable liquid storage bag is provided with a collapsible self sealing fill tube, a reusable drink port connection, and a drinking tube with mouthpiece. In one example, the liquid storage bag and the flat fill tube are provided as polymers, such as polyethylene, polypropylene, or other polymer or polymer blend. In this embodiment, the present invention provides an easier and safer method of sealing and protecting the contents of the liquid storage container while attaching reusable locking system for dispensing the liquid. Instead of buying complete containment systems, the consumer is able to purchase individual storage bags, when needed, and reuse the locking system. In one example, the delivery fittings are detachable and re -usable so that the storage bag and fill tube assembly is curbside recyclable.

Prior art backpack type products provide a hands-free hydration system to the customer who is drawn to the outdoors activity. The reservoirs of these products must be cleaned with mild soap and warm water, or with cleaning tablets. They must be dried completely. Sanitation issues are a consideration with these existing products. Staining and taste issues are problematic.

This individual hydration system may be housed inside a backpack, fanny pack, or similar receptacle. Regular backpacks or those backpacks designed specifically for the hydration reservoir may be used to accommodate a disposable liquid container and fill tube.

The disposable liquid container or liner, with attachments, may be placed inside the permanent reservoir of an existing hydration backpack; inside the hydration backpack without the permanent reservoir; or inside the housing receptacle with the reusable outer support. In some examples, the liquid storage bag includes a hole or other mounting feature for holding the

liquid storage in a backpack or carrier. This example provides a disposable liquid storage bag that is easy to use and sanitary while eliminating the stains and flavors that affect the permanent reservoirs of the existing products.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 A is a front view of a storage bag.

FIG. IB is a front view of a flat fill tube with a large filling port and a tapered extension which

funnels the liquid/material into the storage bag of FIG. 1A.

FIG. 2A is a front view of the fill tube of FIG. IB assembled in the storage bag of FIG. lA to form a liquid container. Sealing details are not shown.

FIG. 2B is a top view of the liquid container of FIG. 2A.

FIG. 3 is a front view of the liquid container of FIG. 2 A with an access element hole for inserting a spout, pump, or other dispenser.

FIG. 4 is a front view of the liquid container of FIG. 3 with an access element inserted in the access element hole.

FIG. 5 is a front view of the liquid container of FIG. 4 being filled for dispensing.

FIG. 6 is a front view of the liquid container of FIG. 5, quickly inverted or tipped so that the fill tube is sealed. FIG. 7 is a vertical cross section view of the fill tube and storage bag when the storage bag is partially filled, as a liquid is introduced to the storage bag.

FIG. 8 is a vertical cross section view of the fill tube and storage bag when the storage bag is filled. FIG. 9A is a horizontal cross section view of a fill tube and storage bag when the storage bag is filled and laid flat.

FIG. 9B is a horizontal cross section view of a fill tube and storage bag when the storage bag of FIG.

9A is vented.

FIG. 10 is a top view of an alternate container with straight inversion prevention seals.

FIG. 11 is a top perspective view of an alternative bag construction with a single folded sheet.

FIG. 12 is a front view of an alternate sealing of a fill tube in a storage bag.

FIG. 13 is a front view of an alternate sealing of a fill tube in a storage bag.

DETAILED DESCRIPTION

In one example, the water container comprises a storage bag with a top portion and a bottom portion; a collapsible fill tube positioned partially within the storage bag, and an optional access element.

The collapsible fill tube has a first panel, a second panel, a top having a width, and a funnel-shaped bottom portion having a bottom opening with a width less than the top width. The first panel has an inside surface, a first side edge, and a second side edge. The second panel has an inside surface, a first side edge, and a second side edge. The first panel is connected to the second panel at the first fill tube side edge and the second fill tube side edge. An upper portion of the collapsible fill tube extends through top portion of the storage bag. A storage bag top seal is provided, in proximity to the top of the storage bag, between the storage bag and the collapsible fill tube.

FIG. 1A is a side view of a storage bag 100 with a top 110, a bottom 120 with a bottom seal 122, a first side edge 130, and a second side edge 140.

In this specification, the term "storage bag" refers to a container for storing water or other liquidsrln one example, the storage bags are fabricated from two panels 150 and 160 with side heat seal seams 182 and 184 , a bottom heat seal seam 174, and heat seal seams 182 and 184 across the top portion.

In another example as shown in FIG. 11 , the storage bags are fabricated by folding a strip of sheet material 152 upon itself to form a folded edge 153 and sealing the meeting side edges 154 and 156 together to form a side seam. The bottom and top edges are sealed after the material is folded. fill tube

FIG. IB is a side view of a fill tube 200 with a top 210, a bottom 220, a first side edge 230, and a second side edge 240. The top comprises a top opening 212. The bottom comprises a bottom opening 222 and a bottom taper 224. In other examples, the bottom of the fill tube is not tapered. The fill tube may be fabricated by overlaying a first panel and a second panel and then creating seals along first side panel edges 230 and the second side panel edges 240. It is desirable to make the funnel seals 225 and 226 with the panel edges well-aligned and with as flat of seam as practical.

In this specification, the term "fill tube" refers to an element having a first side and a second side, with seals , creases, and/or folds between the edges of the first side and the edges of the second side; such that in a closed configuration, the first side lays flat against the second side; and in an open configuration the first side is at least partially spaced away from the second side to permit the flow of liquid between the first side and the second side.

In this specification, the term "collapsible fill tube" refers to a fill tube having a first side and a second side where the inside portion of first side and the inside portion of the second side are in substantial contact, thereby preventing the flow of a liquid, powder, granules, other solid, or mixture of liquid and solid for flowing between the first side and second side.

In this specification, the term "funnel portion" refers to a narrowing of the fill tube from a top width to a bottom opening substantially narrower than the top width.

FIG. 2A shows the fill tube 200 of FIG. IB assembled in the storage bag 100 of FIG. lA to form a water storage bag or container 310. A lower portion 260 of the fill tube extends into the storage bag 100. An upper portion 270 of the fill tube extends outwardly from the storage bag. A slot seal 316 is provided on the outside of the fill tube to seal the fill tube to the storage bag along the top of the storage bag, leaving the inner portion of the storage bag and fill tubing opened for filling.

In FIG. 2A , the storage bag top seal includes fill tube inversion preventer seals 315 and 317 which seal portions of the fill tube to the storage bag. Seal side segments 361 and 362 are provided between the fill tube inversion preventer seals 315 and 317 and the side edges of the storage bag. A storage bag to fill tube heat seal 316 is formed between the second point and the fourth point, such that the heat seal seals the flat tubing to the first panel of the storage bag and to the second panel of the storage bag while permitting the fill tube to open and close.

In other examples, the top bag seal includes a storage bag to fill tube heat seal 316 to seal the flat tubing to the first panel of the storage bag and to the second panel of the storage bag; and seal side segments 361 and 362 which are provided below the top of the storage bag and preferable angle toward the sides of the storage bag. When these seal side segments 361 and 362 are used, the fill tube inversion preventers may be straight sections 313 as shown in FIG. 4 which extend downward from the storage bag to fill tube heat seal 316 to intersect the seal side segments 361 and 362. The top seal 316 has extensions 318 and 319 so that the seals 316, 318, and 319 extend across the top the of the storage bag from the first side edge to the second side edge of the storage bag, respectively. In FIG. 2A, a handle 600 is provided in the unfilled area 352 between the fill tube and the second side of the storage bag.

FIG. 2B is a top view of the container of FIG. 2A. The heavy lines represents the storage bag to fill tube heat seal 316 between the storage bag and the fill tube 200, which is shown partially open for illustration, and top seals 318 and 319 which seal the top of the storage bag. The storage bag front panel 150 and rear panel 160 are shown separated below the seal for illustration, with side heat seals 182 and 184 exaggerated for illustration. In other examples, the storage bag may be formed from a folded panel by providing a single side seal; or may be formed from a tube with no side seal. The fill tube typically has similar construction with a front panel and a rear panel with good alignment and a flat seal at the edges. The top view shows the bottom opening 222, and funnel edge seals 225 and 226.

Example

An example that has been effective for containers is with a fill tube about 4 inches wide with a 5 inch long funnel which narrows to a 2 inch opening, which is large enough for ice cubes. The fill tube extends 6 inches into the storage bag. The fill line is below the bottom of the funnel. The air above the fill line may be bled through an closable access element.

A handle 600 may be formed above the storage bag seal such as illustrated in FIG. 2A. The handle portion and top of the storage bag may be reinforced with a polymer, tape, cardboard, or other material.

The storage bag may be gusseted, such as gusseted along the bottom to allow the storage bag to be free-standing when filled.

FIG. 3 shows a container 311 of FIG. 2 A with an closable access element 640 for bleeding air or removing contents from the storage bag.

In this specification, the term "closable access element" refers to a spout, cap, valve, plug, or two part closure. An example of an irreversible access element is a cut or tear line.

In one example, a two part closure is provided along a portion of the top of the storage bag. In another example, an access port is provided, and the port is sealed with a cap, valve, or plug. In another example, the access element is a cut to the storage bag, typically in a corner of the bag such as illustrated by line 630 in FIG. 3. The preferred cut line may be marked on the bag, and the bag material may be weakened along the cut line. In the examples shown, the fill tube is provided in the center of the storage bag. In other examples, the fill tube may be offset to one side of the storage bag. Testing has shown that the fill tube should not be located too close to the edges of the storage bag.

In this example, a container is formed from a larger flat polymeric storage bag (FIG. 1 A) and a smaller flat collapsible polymeric fill tube (FIG. IB) which has a larger filling port and a tapered extension which funnels the liquid/material into the larger storage bag.

FIG. 4 shows a container assembly 300 formed with a port and cap mechanism 340. FIG. 4 shows storage bag seal side segments 361 and 362; storage bag to fill tube heat seal 316; and straight fill tube inversion preventers 313. In this example, the seal side segments 361 and 362 are angled upwards from the fill tube. Test results show improved breakage resistance when the seal side segments are angled downwards from the fill tube.

FIG. 5 shows a container assembly 300 formed by of FIG. 4 being filled for dispensing. In this example, the storage bag is filled with water through a faucet 80 which provides water through the top opening 212 of fill tube 200. Referring to FIG. 7 which is a cross section view of the fill tube and storage bag, as a liquid is introduced to the storage bag, liquid will fall to the bottom of the storage bag and cause separation between the front panel 150 and the rear panel 160 of the storage bag. This separation may cause air to enter the storage bag through the fill tube. As described below, some or all of the air that is introduced through the fill tube may be removed by venting air out of the port 330. In this example, a valve 350 is provided to bleed air and remove contents.

FIG. 5 shows the fill tube in condition for filling. The upper portion 270 of the fill tube 200 is opened up to permit introduction of the fill material. In this figure, water has filled the storage bag to level 82. A fill line 185 may be used to indicate the ultimate desired level of the storage bag liquid contents before air is removed as described below.

FIG. 6 shows an inverted storage bag assembly 300 of FIG. 5. When the bag is inverted, and the water level 82 is above the bottom opening 222 of the fill tube 200, and sealing can be confirmed. The bottom portion 260 of the fill tube can float freely in the liquid that is contained in the storage bag. The effectiveness of the seal was unexpected, and may be promoted by the pressure of the liquid or air contents against the lower portion of the fill tube. Testing has shown the seal to remain effective against leaks indefinitely. Extensive testing has failed to produce a leak through the fill tube in cases of high pressure or vibration and sloshing of the contents.

Although FIG. 6 shows an inversion of the storage bag, in other examples, such as a large bag, the fill tube can be collapsed by tilting the bag to submerge the fill tube. FIG. 7 is a vertical cross section view of the fill tube and storage bag when the storage bag is partially filled, as a liquid is introduced to the storage bag. The fill tube is shown as open to permit filling.

FIG. 8 is a vertical cross section view of the fill tube and storage bag when the storage bag is filled.

FIG. 8 is a vertical cross section view of the fill tube and storage bag when the storage bag is filled showing a liquid level 82 and an air pocket 83. The fill tube is collapsed at this point.

After the inversion and collapse of the fill tube, the storage bag may be positioned on its side so that the access element is above the contents and upwardly- facing, and air may be bled from the storage bag through the access element. In other cases, air may be bled through the fill tube, such as by introducing a straw into the fill tube. Although it is not necessary to bleed the air from the bag, it is often desirable to bleed some or all of the air to minimize sloshing of liquids or to fit a filled bag into a container such as a backpack. In these cases, the fill operation can be considered as a deliberate overfilling of the storage bag with liquid and air, followed by a removal of air.

FIG. 9A is a horizontal cross section view of the fill tube and storage bag when the storage bag is filled and laid flat.

FIG. 9B is a horizontal cross section view of the fill tube and storage bag when the storage bag of FIG. 9A is partially vented through access element 360.

FIG. 12 is a front view of an alternate sealing of a fill tube in a storage bag where the fill tube inversion preventer seals intersect a funnel portion of the fill tube. FIG. 13 is a front view of an alternate sealing of a fill tube in a storage bag where the fill tube inversion preventer seals intersects a straight portion of the fill tube. In these examples, the storage bag top seal includes fill tube inversion preventer seals 415 and 417. The top bag seal includes a storage bag to fill tube heat seal 416 to seal the flat tubing to the first panel of the storage bag and to the second panel of the storage bag; and seal side segments 461 and 462 which are provided below the top of the storage bag and preferable angle downwards toward the sides of the storage bag. The top seal 416 has first extensions 418 and 419 so that the seals 416, 418, and 419 extend across the top the of the storage bag from the first side edge 438 to the second side edge 439 of the storage bag, respectively. A secondary top seal 436 is provided, and second side extensions 450 and 452 are provided between the fill tube inversion preventers 415 and 417 and the side edges of the storage bag. Support hole 440 is provided in the unfilled areas between the fill tube side edge 230, the first storage bag side edge 438, the first side extension 418, and the second side extension 450. Support hole 442 is provided in the unfilled areas between the fill tube side edge 240, the second storage bag side edge 439, the first side extension 419, and the second side extension 452. In some examples, a handle may be provided in an unfilled area. In FIG. 12, the fill tube inversion preventers 415 and 417 seal a portion of the fill tube funnel edges 225 and 226. In FIG. 13, the fill tube inversion preventers 415 and 417. In testing, this sealing design had greater strength at the intersection of the fill tube inversion preventers 415 and 417 and the seal side segments 461 and 462 than seal designs shown in FIG. 2.

In other examples, the secondary top seal 436 and the second side extensions 450 and 452 are omitted.

The primary seal on the fill tube is provided when the fill tube collapses after the filling operation. The bag can have a fold over clip and seal, ziplock-type, or slider mechanism to seal the portion 270 of the fill tube which extends outside of the storage bag.

Example- Hydration bag

In this example, a hydration bag comprises a storage bag with a top portion and a bottom portion; a collapsible fill tube positioned partially within the storage bag, and a drink hole port. A drink tube assembly is attachable to the drink hole port, with the proximal end of a first tube connected to the drink hole port, and a second end provided to the mouth of the user. The hydration bag may be carried in a backpack or other carrier.

A fill tube is about 4 inches wide (10.2 cm) with a 5 inch (12.7 cm) long funnel narrows to a 2 inch (5.1 cm) opening, which is large enough for ice cubes. The fill tube extends 6 inches into the storage bag. The fill line is below the bottom of the funnel. The air above the fill line may be bled through the drink tube, or may be left in the storage bag. The 3 inches (7.6 cm) of the fill tube which extends outside of the storage bag is typically turned down, and may be clipped to form a secondary seal, such as by providing a c-clamp that fits over a rod where a portion of the fill tube is folded or rolled over the rod. However, testing has shown that the collapsed fill tube to be very effective at sealing the contents. Tape has been used effectively on the outside top edges of the storage bag to reinforce the top of the storage bag and the mounting hole. The fill tube is typically constructed of tubing. Testing has shown that longer fill tubes are more effective at closure than shorter fill tubes.

A separate drinking tube port is provided at the bottom of the bag. In one example, a removable fitting is provided to seal the drinking tube port and to attach connectors and drinking tube components. One example of drinking tube assembly is to provide a rotatable connector such as United States Plastic Corp. Part No. 60656 "Bulkhead Panel Mounted Hose Barb Body & Shutoff on the drinking hole port. The lower portion of the connector has a hose barb for attaching a tube section, and the upper portion of the connector has a shutoff connection. The mouthpiece tube may be attached to the barb end of United States Plastic Corp. Part No. 60658 "Hose Barb Insert with Shutoff, and that part is attachable to the rotatable connector. A mouthpiece tube section of the drinking tube may have a Y-connector such as United States Plastic Corp. Part No. 64116 to permit the contents of the bag to be shared. Each mouthpiece section(s) may include a dispensing valve. The mouthpiece tube section is typically long enough to reach from the cap to the mouth of a user.

In another example, a bulkhead fitting comprises a bolt portion with a threaded hole; a nut portion; and gaskets. Hole periphery storage bag material is sealed between the gaskets as the nut portion is tightened onto the bolt portion.

Example- Large emergency water storage bag

In one example, the large Aquapodkit storage bag is provided with a fill tube as described above. The fill tube provides an easy and convenient method of filling the storage bag from a bath faucet when the storage bag is placed in a bathtub.

Example- Portable emergency water storage bag

In another example, storage bags with a 1-12 gallon capacity are provided with a fill tube as described above. The fill tube provides a fast method of filling and sealing the storage bags without removing a cap or attempting to fill the bags through a small fill port.

Method of manufacture

In one method of manufacture, the collapsible fill tube is made from a single length of flat tubing by cutting a bottom funnel shape, and heat sealing side edges of the funnel. In another method of manufacture, the collapsible fill tube is made from two panels by heat sealing side edges of the first panel as it overlays the second panel. In one example, the storage bag is provided as an open-top prefabricated bag. A collapsible fill tube is inserted in the bag; and the storage bag top seal is created by heat sealing.

In another example, the storage bag is fabricated from a first side panel and a second side panel. The first side panel has a top edge, a first side edge, a second side edge, and a bottom edge. The second side panel has a top edge, a first side edge, a second side edge, and a bottom edge. The first panel is positioned over the second panel and the first side edge of the first panel is bonded to the first side edge of the second panel; the second side edge of the first panel is bonded to the second side edge of the second panel; and the bottom edge of the first panel is bonded to the bottom edge of the second panel.

In another example, the storage bag is fabricated from a single folded sheet which forms a first portion and a second portion joined at a fold. The single folded panel is folded so that the folded side edges are aligned and bonded; and the folded bottom edges are aligned and bonded. One method of forming a container with a collapsible self sealing fill tube comprises forming a funnel bottom on the section of flat tubing; placing the section of flat tubing with funnel bottom between the first panel and a second panel of a storage bag so that a lower portion of the fill tube extends into the storage bag by a distance greater than the length of the funnel bottom; and sealing a top portion of the storage bag. The sealing is performed by heat sealing an upper portion of the section of flat tubing to the first panel and the second panel in proximity to the top of the storage bag; creating a first storage bag top seal between the first side edge of the storage bag and the section of flat tubing; and creating a second storage bag top seal between the second side edge of the storage bag and the section of flat tubing. In one example, the funnel bottom is formed with a height greater than the flat tubing width, and with a bottom opening width of about half of the flat tubing width.

Alternate Designs

The quick loading/filling bag can be modified in numerous ways to accommodate a variety of needs. The following variations are not limiting.

In one example, the storage bag and fill tube assembly is designed to be disposable and recyclable. The locking/dispensing mechanism can be built-in or removable and reused. In another example, the storage bag and fill tube assembly can be refilled and reused.

The containers described above can be sized for various volumes of a liquid.

The filled storage bags can be placed or stored in anything that can support their weight.

The invention can accommodate multiple quick loading parts for filling and/or separation of certain materials/liquids, such as epoxies, before combining.

The invention can be made from a variety of polyethylene, polypropylene and any other flexible materials. The bag can be constructed of thicker outer materials while inner filling/tubing part is still very flexible and collapsible for filling giving it a check valve type of operation.

The bag storage can connect to a variety of fasteners, tubes and hoses for dispensing. In some applications, the assembly may comprise only a storage bag and a fill tube. In these applications, the contents can be accessed by cutting or otherwise opening the storage bag.

The embodiment above describes a a flat non-gusseted storage bag. The fill tube is also effective for other storage bag designs including gusseted designs. In one example, the bottom of the bag may lie flat on a support surface during the fill operation or during shipment or storage of the bag. Contents are introduced into the fill tube as described above, and the fill tube is collapsed after filling. Method of use

A method of filling and sealing the container comprises introducing a liquid through the top of the collapsible fill tube; continuing to introduce liquid through the collapsible fill tube until a desired liquid level is reached in the storage bag; and permitting the collapsible fill tube to collapse, thereby sealing the container.

The following is an example method of use of a container assembly:

At step 1000, a container assembly such as shown in FIG. 4 is provided.

At step 1100, a liquid is introduced though the fill tube of the container assembly.

At step 1200, a liquid is introduced though the fill tube of the container assembly until the level of liquid in the storage bag reaches a desired level.

At step 1300, the fill tube closes when liquid introduction ends

At step 1400, the container assembly is optionally inverted or tipped, thereby confirming that the fill tube has collapsed and sealed.

At step 1500, excess air may be bled from the container.

At step 1600, the filled container may be stored or transported.

At step 1700, the contents of the container may be accessed.

While an exemplary embodiment of the invention has been described, it should be apparent that modifications and variations thereto are possible, all of which fall within the true spirit and scope of the invention. With respect to the above description then, it is to be realized that the optimum relationships for the components and steps of the invention, including variations in order, form, content, function and manner of operation, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present invention. The above description and drawings are illustrative of modifications that can be made without departing from the present invention, the scope of which is to be limited only by the following claims. Therefore, the foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents are intended to fall within the scope of the invention as claimed.

Claims

CLAIMS What is claimed is

1. A liquid container comprising

a storage bag comprising

a top portion, and

a bottom portion; and

a collapsible fill tube positioned partially within the storage bag, the collapsible fill tube comprising

a first panel having an inside surface, a first side edge, and a second side edge, a second panel having an inside surface, a first side edge, and a second side edge, a first fill tube side edge,

a second fill tube side edge, such that the first panel is connected to the second panel at the first fill tube side edge and the second fill tube side edge,

a top having a width, and

a funnel-shaped bottom portion having a bottom opening with a width less than the top width,

the collapsible fill tube having

a collapsed state with inside surface of the first panel in substantial contact with the inside surface of the second panel, and

an open state with the inside surface of the first panel spaced apart from the inside surface of the second panel,

such that an upper portion of the collapsible fill tube extends through top portion of the storage bag, and a storage bag top seal is provided, in proximity to the top of the storage bag, between the storage bag and the collapsible fill tube.

2. The liquid container of claim 1 wherein

the fill tube has a length of about 9 inches and a top width of about 4 inches;

about 6 inches of the fill tube extends into the storage bag; and

the funnel shaped bottom portion of the fill tube has a length of about 5 inches and a bottom opening width of about 2 inches.

3. The liquid container of claim 1

wherein the collapsible fill tube comprises a single length of flat tubing by cutting a bottom funnel shape, and heat sealing side edges of the funnel.

4. The liquid container of claim 1

wherein the collapsible fill tube is comprises two panels by heat sealing side edges of the first panel as it overlays the second panel.

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5. The liquid container of claim 1 further comprising

fill tube inversion preventer seals between the fill tube and storage bag.

6. The liquid container of claim 5 wherein the further fill tube inversion preventers further comprise a first side extension seal extending between the fill tube and a top portion of a first side of the storage bag; and

a second side extension seal extending between the fill tube and a top portion of a second side of the storage bag.

7. The liquid container of claim 1 further comprising

an access port and stopper or valve.

8. The liquid container of claim 1 further comprising

a two-part closure.

9. The liquid container of claim 1 further comprising

a tear-away portion.

10. The liquid container of claim 1 wherein

the storage bag is provided as an open-top prefabricated bag;

the collapsible fill tube is inserted in the bag; and

the storage bag top seal is created by heat sealing.

11. The liquid container of claim 1 wherein

the storage bag is fabricated from a first side panel comprising

a top edge,

first side edge,

a second side edge, and

a bottom edge,

and a second side panel comprising

a top edge,

first side edge,

a second side edge, and

a bottom edge; and

the first panel is positioned over the second panel, and

the first side edge of the first panel is bonded to the first side edge of the second panel,

2 the second side edge of the first panel is bonded to the second side edge of the second panel, and

the bottom edge of the first panel is bonded to the bottom edge of the second panel.

12. The liquid container of claim 1 wherein

the storage bag is formed from a single folded sheet which forms a first portion and a second portion joined at a fold, the storage bag comprising

a top edge,

first side edge,

a second side edge, and

a bottom edge;

such that the single folded panel is folded so that the first side edge is aligned with the second side edge, and

the first side edge is bonded to the second side edge, the bottom edge of the first portion is bonded to the bottom edge of the second portion.

13. The liquid container of claim 1 wherein

the storage bag and fill tube are formed from recyclable materials.

14. The liquid container of claim 1 further comprising

a drink hole port.

15. The liquid container of claim 14 further comprising

a drink tube assembly comprising

a first tube, external to the storage bag, the first tube having a proximal end connected to the drink hole port, and a second end.

16. The liquid container of claim 1 further comprising

a backpack or hydration bag container mounting hole.

17. A method of filling and sealing a liquid container, the method comprising

providing a first liquid container comprising

a storage bag comprising

a top portion, and

a bottom portion,

3 a funnel-shaped bottom portion,

such that a storage bag top seal is provided, in proximity to the top of the storage bag, between the storage bag and the collapsible fill tube, and an access port;

introducing a liquid through the top of the collapsible fill tube;

continuing to introduce liquid through the collapsible fill tube until a desired liquid level is reached in the storage bag; and

permitting the collapsible fill tube to collapse, thereby sealing the water container.

18. The method of claim 17 wherein permitting the collapsible fill tube to collapse further comprises inverting the storage bag so that the bag contents surround the portion of the fill tube which is within the storage bag.

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