Collapsible container

Details Collapsible container Collapsible container

2001-01-29

2002-08-13

Shaver, Kevin (Department: 3754)

Dispensing

Resilient wall

With container handle or handgrip

C222S475000, C220S666000, C215S900000

Reexamination Certificate

active

06431406

ABSTRACT:

REFERENCES CITED
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Cambio
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RE36,377
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6,116,488
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Fragos
DESCRIPTION OF PRIOR ART
Several containers have been provided in former art which present with collapsible walls. Examples of prior art which present with collapsible midsections include U.S. Pat. No. 4,775,564, which was issued Oct. 4, 1998 to Shriver, Clinton, Richeson, Canton, Vogliano, Tallmage, U.S. Pat. No. 36,377, which was reissued Nov. 9, 1999 to Neil Y. Gilbert, and U.S. Pat. No. 5,174,458, which was issued Dec. 29, 1992, Umberto D. I. Segati. In each example the inventions are improved upon in that the disclosed invention provides a means of handling the container, provides for axial support of the container in expanded form, and provides for a means of supporting and retaining the container in collapsed form. These improvements are attributable to a handle which is affixed to create a graspable, rigid spine when the container is in the expanded form. This also discloses the handle wherein it is affixed to prevent the axial expansion of the container when it is in its collapsed form.
Another form of collapsible container is disclosed in U.S. Pat. No. 6,047,848, which was issued Apr. 11, 2000 to Rex C. Davis. That patent disclosed a container with a collapsible midsection and a locking means to retain the container in the collapsed form. As in the case of the other examples of prior art, the retention of the Davis invention in its expanded form is directly dependent on the material of the flexible walls of the container having a thickness to normally enable self support of the container. The disclosed invention improves on the Davis invention in that the support of the container is supplemented by the disclosed handle. This provision allows for flexibility in materials used in construction and a reduction in wall thickness in appropriate instances.
Another improvement noted over the Davis invention in that the position of the handle in the disclosed invention provides for increased ease of handling of the container when dispensing solutions.
The disclosed invention presents with a flush profile of its top portion when in its fully collapsed and secured form. This flush profile is an improvement on the Davis invention in that projections, such as the securing cap, U-shaped top channel clamp, and vent cap disclosed in the David invention, are eliminated. The elimination of these projections increases packaging efficiency in stacking and storing units during transport, while the containers are being displayed for sale, and while being stored by the end user. An additional improvement attributable to the flush top surface of the disclosed invention is the provision for usable space on which product information can be placed without the need for secondary packaging.
Yet another improvement on prior art which this invention provides for is an increased level of product and consumer protection. The inadvertent displacement of a storage container's closure device is the most common mode of introducing contaminants into a container. In addition to providing a grasping means for the user, and a rigid support for the container is in its fully expanded form, this invention's handle secures the container closed in such a way as to fully protect the container's closure cap. The potential inadvertent displacement of the closure device from the container, and the introduction of contaminants through this route, is thereby substantially reduced.
Examples of prior art, which support methods of production for the disclosed main body of the invention, include U.S. Pat. No. 4,187,960, which was issued Feb. 12, 1980 to Bonk, and U.S. Pat. No. 4,213,933, which was issued Jul. 22, 1980 to Cambio. In both examples, a blow molding technique for plastics is disclosed. The main body of the disclosed invention may be produced in a plural cavity, two sided, blow mold format as referred to in U.S. Pat. No. 4,213,933, June 1980, Cambio.
BACKGROUND OF THE INVENTION
This invention relates to a collapsible container which is used for storing products requiring the addition of liquids prior to use. The collapsible container presents in two functional states. In a fully collapsed form, the collapsible container is used for the storage of evaporated, powdered, condensed, or concentrated products. In a fully expanded form, the collapsible container stores the evaporated, powdered, condensed, or concentrated products in a solution form. In addition, in a fully expanded form, the collapsible container functions as the mixing device and dispensing container for the products in solution form.
The packaging of products in evaporated, powdered, condensed, and concentrated forms provides for increased efficiency in the storage and distribution of the products. The increased storage and distribution efficiency is predominantly associated with decrease container size requirements. Additional benefits noted relate to increased product shelf life, and maintained product quality associated with evaporated, powdered, condensed, and concentrated products.
The preparation of the evaporated, powdered, condensed, and concentrated products to a usable form typically involves the use of secondary containers into which the products are dispensed, appropriate liquids are added, in which the products and liquids are brought into solution, and from which the liquids are dispensed. To bring the products and the added liquids into a usable solution, supplemental mixing devices, such as spatulas or long handled mixing spoons, are often required.
This invention eliminates the need for secondary containers and supplemental mixing devices while improving upon present packaging for evaporated, powdered, condensed, and concentrated products.
The invention eliminates the need for secondary storage and dispensing containers, as the collapsible container forms a functional pitcher-like storage and dispensing container when in its fully expanded form. The ability of the collapsible container to expand is attributable to the undulating accordion style walls or corragated walls of the collapsible container's midsection and to the material type used. A pitcher-like form is attained when opposing forces are placed along the long axis of the container. The opposing forces lead to the elongation of the midsection and a corresponding increase of the container's overall vertical dimension. The material types which would allow for this action and associated forces may be selected from metal foils, polymers, elastomers, plastics, and paper based products. When the inventions multi-functional U-shaped handle is attached, the collapsible container takes on the form of a functional pitcher.
Supplemental mixing devices are eliminated as mixing of the added liquids and evaporated, powdered, condensed, or concentrated products is undertaken by briskly shaking the container until the desired solution consistency is reached. The undulating accordion style walls of the container's collapsible midsection assists with the incorporation of the added liquid and the stored product by acting as a resistance form.
Consumers appreciate time, money, and energy savings as the need to purchase, use, store and clean secondary storage containers and supplemental mixing devices is eliminated.
In its fully collapsed form the invention is generally cubical in nature. This feature provides for increased efficiency in storage and bulk packaging of multiple units both from a manufacturing and retail standpoint when compared to exiting packaging forms.
A specific example where the general cubical configuration of the collap

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