Package making – Methods – Enclosing contents within progressively formed web means
Patent
1998-09-22
2000-12-26
Coan, James F.
Package making
Methods
Enclosing contents within progressively formed web means
531338, 53412, 53551, B65B 912, B65D 7558
Patent
active
061640425
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to containers and in particular to a container adapted to hold a fluid or liquid such as a beverage or the like. The present invention also relates to a method of forming fluid-filled containers from a tube of flexible material and to a method of forming a self-supporting fluid-filled container.
BACKGROUND OF THE INVENTION
Containers to hold fluids or liquids such as beverages are well known in the art. One such known beverage container, commonly referred to as a Tetra-Pack.TM., includes a generally rectangular parallelpiped body formed from layers of laminated material. At the top of the body is a foil or plastic covered aperture through which a straw or the like may be pushed to allow an individual to drink the contents of the container. Although these containers are widely used, their design does not make them readily recyclable and after use, they are typically disposed of through landfill.
An alternative container design is disclosed in U.S. Pat. No. 5,378,065 to Tobolka. The Tobolka container is formed of a unitary pieces of plastic material folded and bonded at appropriate locations to define a body having an internal reservoir and an integrally formed spout in fluid communication with the internal reservoir. The spout extends upwardly from the body of the container and defines a straw to allow an individual to drink the contents of the container. A restriction in the container is positioned at the juncture between the body of the container and the spout to reduce the pressure of fluid flowing from the body to the spout. This gives the individual more control over the velocity of the out-flowing fluid.
Although this container is satisfactory, improved container designs are continually being sought. It is before an object of the present invention to provide a novel container for fluids such as beverages or the like. It is also an object of the present invention to provide a novel method of forming fluid-filled containers from a tube of flexible material and to a method of forming a self-supporting fluid-filled container.
SUMMARY OF THE INVENTION
According to one aspect of the present invention there is provided a method of forming fluid-filled containers from a tube formed of flexible material, said tube being at least partially filled with fluid, said method comprising the step of: which fluid is located, said seals being configured to define interlocking, alternately oriented containers having narrow spouts and wider bodies.
Preferably, the seals are formed in succession in a downstream to upstream direction with fluid being displaced in the tube between each successively formed seal. It is also preferred that the seals are configured to define tapered containers with the taper of the bodies being the same as the taper of the spouts.
According to another aspect of the present invention there is provided a method of forming a fluid-filled container from a fluid-filled tube formed of flexible material comprising the steps of: of said container and being configured to define a body having an internal reservoir and a narrow spout in fluid communication with said reservoir extending generally centrally from said body; and
According to yet another aspect of the present invention there is provided a container for fluids or liquids formed of flexible material comprising: fluid communication with said reservoir; passage downstream of said constriction as liquid flows from said reservoir into said passage; and
Preferably the container is formed from a unitary piece of material. It is also preferred that the constriction is defined by at least one projection on an internal wall of the spout which extends into the internal passage. In one embodiment, the constriction is defined by a pair of diametrically opposed projections on the internal wall. In another embodiment, the constriction is defined by an obstruction extending across the passage which resembles an inverted wing.
According to still yet another aspect of the present invention there is provi
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Arkmount Systems Inc.
Coan James F.
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