Package making – Methods – Forming a cover adjunct or application of a cover adjunct to...
Patent
1996-04-26
1998-06-02
Gehman, Bryon P.
Package making
Methods
Forming a cover adjunct or application of a cover adjunct to...
531331, 53455, 53479, 2225416, 383906, 426 85, 426115, 426122, B65B 6100, B65B 4304
Patent
active
057584737
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to the packaging of liquid food products.
BACKGROUND ART
Packages are know for liquid foodstuff such as e.g. packages for fruit juice and the like, which are made from flexible or semi-stiff material sheets suitably folded and welded.
These packages sometimes allow one to drink the beverage through a drinking straw or similar means.
More particularly cardboard semi-stiff containers are known, generally having a parallelepiped shape, which are separately provided with a drinking straw the straw being inserted into a hole in the top of the container when used. This hole is usually closed by a patch of material that can be broken by inserting the straw.
These containers however have disadvantages in manufacturing and handling, the containers requiring very high manufacturing costs, particularly because of the material used.
Furthermore, it appears that it is difficult to drink all the beverage since the straw must be moved over the bottom of the container.
It must be noted that generally the straw is bonded to the outer surface of the container, and it can easily get damaged while handling the container.
Instead of the above mentioned semi-stiff containers, other flexible packages have been used, produced in the form of pouches.
Each pouch incorporates at the top a tubular member including an opening device for with-drawing the beverage.
However these packages require very high costs and are not convenient because the tubular member dips in a limited part of the liquid product.
The above mentioned drawbacks of the known packages are more severe when it is considered that these packages are mainly used by very young consumers.
U.S. Pat. No. 3,144,976 discloses a liquid filled pouch having a straw therein for effecting the dispensing of the contents thereof. In particular the pouch is formed from two panel, or from a single folded sheet, of flexible material joined along edges thereof.
The pouch includes a top, a bottom, side edges, and a heat sealed line extending between the panels downwardly from said top so as to separate the pouch into a large main compartment and a smaller dispensing compartment disposed proximal to one side edge for loosely receiving a straw.
The heat sealed line terminates short of the pouch bottom whereby the liquid may flow from the bottom of the main compartment into the bottom of the dispensing compartment.
The main disadvantage of the pouch is that a user could withdraw the liquid contained in the main pouch compartment only by using the straw contained in the dispensing compartment because the dispensing compartment is integral with the main compartment and is not provided with any kind of mouthpiece.
Another disadvantage is that this pouch is not self-supporting, and it cannot lean against a flat surface after its is opened.
A Further disadvantage is that the pouch is made with a single flexible sheet, which results in a consequent slower production rate and high production cost in comparison with a package that can be made from a continuous band of material.
U.S. Pat. No. 3,473,703 discloses a package for storing and dispensing liquids formed by first cutting a continuous sleeve of plastic material to the desired length, and then closing the opposite ends of the resulting section of the sleeve.
This container has a spout for pouring the fluid contents, the spout formed by welding the opposite surfaces of the sectioned sleeve along a predetermined line for a predetreminated portion of the width or length of the container at that point. The weld line is spaced a suitable distance from the edge of the sleeve so as to provide a passageway adjacent the main body portion of the container.
The passageway is in communication with the main body portion by virtue of the fact that the sealing line does not extend the entire length or width of the package.
The passageway can be removed from its position adjacent the container because the sealing line is perforated or distressed so that the passageway means could provide a suitable pouring sp
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patent: 2789728 (1957-04-01), Britton
patent: 2998340 (1961-08-01), Conway et al.
patent: 3074612 (1963-01-01), Schneider
patent: 3144976 (1964-08-01), Freshour
patent: 3171581 (1965-03-01), Kugler
patent: 3462061 (1969-08-01), Shore
patent: 3473703 (1969-10-01), Lippincott
patent: 3799914 (1974-03-01), Schmit et al.
patent: 4614074 (1986-09-01), Evers
patent: 5228782 (1993-07-01), Imer
patent: 5547284 (1996-08-01), Imer
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