Abstract:
A flexible container having a flexible pouch with a valve assembly mounted thereon is secured to a dispensing container in a sealed relationship with the valve assembly. Then the flexible pouch is squeezed in order to move a fluid from the flexible pouch through the valve assembly into the dispensing container. The dispensing container is thus refilled and made ready for use.

Description:
This invention relates to a refilling container, and more particularly to a flexible refilling container attachable to a dispensing container, the dispensing container being both container being refilled. 
     BACKGROUND OF THE INVENTION 
     Any recycling process provides many advantages. Valuable resources are conserved, while permitting reuse of materials. For example, many standard containers, used as dispensing container for use material contained therein, are very durable and capable of being refilled. With such refilling, more efficient use of resources is permitted. 
     However, there are many difficulties within an efficient refilling process. During the refilling, it is desired to avoid spilling as the one material is being passed from the refilling container to the dispensing container. By refilling container is meant the supply container. By dispensing container is meant the use container or the container, from which dispensing of a fluid for a direct use or a substantially immediate use is made. 
     The attachment of the refilling container to the dispensing container must be sufficiently secure to avoid leakage or other spilling. Also, the refilling container must be easily released from the dispensing container after such refilling is complete. 
     Both the releasing and the attaching steps provide a substantial opportunity for spillage. Such a spillage has an adverse effect on the recycling advantages of such a procedure. Thus, spillage must be minimized. 
     The release of material from the refilling container into the dispensing container prior to being inserted therein must be carefully controlled. To that end, the opening of the refilling container in order to permit the material to pass therethrough must be accomplished at the right time. The opening must also be carefully controlled. 
     Additional problems may occur with a fluid transfer. Such a fluid transfer is complicated in proportion to increase in viscosity of the fluid being transferred. If a fluid is viscous, it may not flow easily from a refilling container into a dispensing container. 
     With the opening, the attachment to the dispensing container must be accomplished swiftly in order to minimize passage of material through the opening. Such coordination is difficult, if not impossible, with the refilling containers of the prior art. To that end, great advantages can be obtained, provided the opening can be controlled while permitting provision of a flexible refilling container capable of being efficiently attached to the dispensing container. 
     A further objective of this invention is the provision of an easily openable refilling container. 
     Yet a further objective of this invention is the provision of a flexible refilling container capable of being released easily from a dispensing container. 
     A still further objective of this invention is the provision of a flexible refilling container capable of minimizing spillage during the refilling process. 
     Also, an objective of this invention is the provision of a flexible refilling container capable of transferring a viscous fluid. 
     Another objective of this invention is the provision of a method for easily refilling a dispensing container. 
     Yet another objective of this invention is the provision of a method, whereby a viscous fluid may be released easily from a dispensing container. 
     Still, another objective of this invention is the provision of a method for applying pressure to a refilling container in order to promote transfer of fluid to a dispensing container. 
     These and other objectives of the invention (which other objectives become clear by consideration of the specification, claims and drawings as a whole) are met by providing a flexible container a flexible pouch having a valve assembly with mounted thereon. The valve assembly may be secured to a dispensing container in a sealed relationship with the valve assembly. Then the flexible pouch is squeezed in order to move a fluid from the flexible pouch through the valve assembly into the dispensing container. The dispensing container is thus refilled and made ready for use. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 depicts a perspective view of the flexible refilling container  100  of this invention. 
     FIG. 2 depicts a partially exploded, perspective view of the flexible refilling container  100  of this invention. 
     FIG. 3 depicts a side, cross-sectioned view of the valve assembly  120  for flexible refilling container  100  of this invention. 
     FIG. 4 depicts a perspective view of the valve assembly  120  for flexible refilling container  100  of this invention. 
     FIG. 5 depicts a side view of the flexible refilling container  100  of this invention attached to dispensing container  110 . 
     FIG. 6 depicts a side, cross-sectioned view of the valve assembly  120  for flexible refilling container  100  of this invention attached to dispensing container  114 . 
     FIG. 7 depicts an exploded view of the accumulated valve assembly  120  attachable to flexible pouch  150  in order to form flexible refilling container  100  of this invention. 
     FIG. 8 depicts a perspective view of the washer valve assembly  200  attachable to flexible pouch  150  in order to form flexible refilling container  100  of this invention. 
     FIG. 9 depicts a side view of the washer valve assembly  200  attachable to flexible pouch  150  based on FIG. 8 in cross section. 
     FIG. 10 depicts a perspective view of the unitary valve assembly  230  attachable to flexible pouch  150  in order to form flexible refilling container  100  of this invention. 
     FIG. 11 depicts a side view of the unitary valve assembly  230  attachable to flexible pouch  150  based on FIG. 10 in cross section. 
    
    
     Throughout the figures of the drawings, where the same part appears in more than one figure of the drawings, the same number is applied thereto. 
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     In order to reduce the time it takes to add a fluid to a dispensing container, a flexible container having a flexible pouch with a valve assembly is provided for refilling a dispensing container. The fluid in the flexible pouch can pass from the flexible pouch through the valve assembly into the dispensing container. 
     The flexible pouch of the dispensing container provides an improved manner of transferring a viscous liquid or fluid to a dispensing container. With the valve assembly open, the flexible pouch may be squeezed, there by applying pressure to the viscous fluid invoicing the same through the opening valve assembly into the dispensing container, which is attached to the valve assembly. 
     With a flexible refilling container, transportation is greatly simplified, whether the container is or empty. With the flexible refilling container being shipped as full, such flexibility permits more compact shipping in that more containers can be stored or shipped in the same shipping space. 
     Also, when empty, this flexible refilling container is even more compact and can be shipped in less space. Thus, the empty containers are more easily transported for either recycling or reuse. Clearly such containers can also be refilled if desired. 
     In a preferred form, the valve assembly provides for a secure attachment to a dispensing container. The squeezing of flexible pouch permits fluid to be forced from flexible container out of flexible pouch through valve assembly into a dispensing container. By the same token, the valve assembly further permits securing so that the flexible refilling container may itself be a dispensing container and have a plurality of uses as a refilling container. 
     Also in a preferred form, the valve assembly attached to the flexible refilling container has a vent passage. This debt passage permits entry of air into the transfer area of the fluid passing between the flexible container and the dispensing container. 
     A further preferred valve assembly is one-piece. The one-piece valve may be formed by injection molding. Such formation minimizes the assembly requirements of the valve assembly. It is also possible for both an accumulated valve, or a washer valve to be injection molded, but supported by a washer. 
     Referring now to FIG. 1, flexible refilling container  100  has accumulated valve assembly  120  mounted on flexible pouch  150 . Accumulated valve assembly  120  combines with flexible pouch  150  in order to permit a release of a desired amount of fluid from the flexible pouch  150 . 
     Adding FIG. 2 to the consideration, valve assembly  120  has a connector cap  122  with a spout  124  extending therefrom. Spout  124  communicates with flexible pouch  150  through connector cap  122 . Closing cap  128  fits over spout  124  onto male spout threads  130 . Closing cap  128  includes female cap threads  132 . Clearly female cap threads  132  can be attached to or released from male spout threads  130  as desired. 
     With FIG. 3 additionally considered, spout  124  is closed with cap  128 . Connector cap  122  is held in place between spout base  136  and neck base support  172 , thereby allowing connector cap  122  to turn freely. Adjacent to spout base  136  is washer gasket  140 . Neck base nozzle  174  is secured to spout  124 , by glue, sonic weld or another suitable bonding system. 
     Washer gasket  140  seals the connection between refilling pouch  100  and dispensing container  110  of FIG.  5 . From male spout threads  130  extends spout  124 . Spout  124  communicates with flexible pouch  150  and permits refilling of dispensing container  110 . 
     From FIG. 4, a fixed seal  154  can close spout  124 . With cutting device  152 , fixed seal  154  can be separated from spout  124  and permit flow from flexible refilling container  100  to dispensing container  110  of FIG.  5 . 
     With FIG.  5  and FIG. 6, the connection of flexible refilling pouch  100  to dispensing container  110  can be seen. Such a tight seal is due to the gasket  140  with the structure of accumulated valve assembly  120 . Female valve threads  160  are secured to male dispensing container threads  162 , thereby providing a tight seal as required. 
     In FIG.  6  and FIG. 7, the connection of flexible refilling pouch  100  is assisted by base vent  176 . In this manner, the vacuum created by the fluid transfer is minimized. 
     With FIG. 7 showing an exploded view of valve assembly  120 , the structure becomes even more clear. Neck base  170  is secured to flexible pouch  150 , and provides support for the balance of accumulated valve assembly  120  to the secured thereto. Connector cap  140  fits over neck base  170  and onto neck base support  172  and around that neck base nozzle  174 . Over neck base nozzle  174  fits dispensing nozzle  162 . Then, the gasket  140  and cap  160  may be attached in the previously described fashion. 
     Flexible pouch  150  is shown as opened with a first flap  180  and second flap  182 . First flap  180  can be folded over second flap  182  at fold  184 . Opposite fold  184  is first seal  186 . Adjacent to first seal  186  is base seal  188  to close bottom  190  of flexible pouch  150 . 
     Top seal  192  receives accumulated valve assembly  120  and seals flexible pouch  150  therearound. More specifically, neck base  170  both receives top seal  192  and locks the accumulated valve assembly  120  in flexible pouch  150 . Thus, flexible refilling container  100  can be completely emptied and reused. 
     Turning now to FIG.  8  and FIG. 9, washer valve assembly  200  has a structure similar to accumulated valve assembly  120 . However, instead of the variety of pieces for accumulated valve assembly  120  attachable to flexible pouch  150  in order to form flexible refilling container  100 , washer valve assembly  200  is injected molded or otherwise shaped to form all elements of accumulated valve assembly  120 . If desired, washer valve assembly  200  has inserted therein a vented gasket  202 . Vented gasket  202  has a vent aperture  204  which aligns with housing aperture  206  and threaded base  208 . The threaded base  208  forms a top portion of threaded attachment  210 , which secures washer valve assembly  200  to dispensing container  110 . 
     FIG.  10  and FIG. 11 combined to show the preferred unitary valve assembly  230  attachable to flexible pouch  150  in order to form flexible refilling container  100  of this invention. This unitary valve assembly  230  may simply be molded and requires no assembly or insertion of any washer. The structure of this unitary valve assembly  230  is similar to accumulated valve assembly  120 . However, with the one step molding process, no assembly is required. The structure present in the accumulated valve assembly  120  is provided by the structure of the mold. 
     This application—taken as a whole with the abstract, specification, claims, and drawings being combined—provides sufficient information for a person having ordinary skill in the art to practice the invention as disclosed and claimed herein. Any measures necessary to practice this invention are well within the skill of a person having ordinary skill in this art after that person has made a careful study of this disclosure. 
     Because of this disclosure and solely because of this disclosure, modification of this method and device can become clear to a person having ordinary skill in this particular art. Such modifications are clearly covered by this disclosure.