Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Reexamination Certificate
1998-08-26
2001-05-08
Vo, Peter (Department: 3721)
Manufacturing container or tube from paper; or other manufacturi
Container making
Rigid container
C053S172000, C220S495040, C220S495040, C220S495040, C222S083000, C222S105000, C222S386500, C383S121000, C383S906000, C493S096000, C493S102000, C493S143000, C493S168000
Reexamination Certificate
active
06228011
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a bag-in-carton with a flexible inner bag adhered to inside surfaces of a substantially rectangular parallelepiped carton, and a method and device for forming the bag-in-carton.
As a liquid packaging container bag-in-cartons have been conventionally used. The bag-in-carton usually has a rectangular parallelepiped having a flat bottom panel, a top panel, and four flat side panels between the bottom and the top panels. The inner bag is adhered to the inside surfaces of the four side panels. The bag-in-carton is generally used in packaging liquids of low viscosities, such as juice, liquor, etc. Practically when a content is discharged from the bag-in-carton, air corresponding to a discharged amount of the content enters the bag-in-carton.
When the bag-in-carton is used in packaging a liquid of high viscosity, such as ink, or others, it is necessary to draw the liquid through the pouring spout when the liquid is discharged from the bag-in-carton. But it is difficult to let air in the inner bag. Accordingly it is necessary to deform the inner bag to decrease its volume corresponding to a discharge of the content in the inner bag. The conventional bag-in-carton whose inner bag is adhered to the four inside surfaces of the carton cannot have the inner bag deformed when a content thereof is discharged, which makes it impossible to use the bag-in-carton as it is in packaging a liquid of high viscosity.
Furthermore, in using the bag-in-carton in packaging ink for printing machines, the pouring spout of the bag-in-carton is connected to the connector of a printing machine to discharge the content of the bag-in-carton.
To meet the purpose of feeding a constant amount of ink to a printing machine, it is necessary that an ink feed amount per a unit hour is stably constant.
The conventional bag-in-carton cannot have achievements to fulfill these functions, and the following achievements are required.
1) The inner bag is deformed as ink is drawn out.
2) An ink feed amount is stably constant.
SUMMARY OF THE INVENTION
In consideration of these disadvantages the present invention was made, and an object of the present invention is to provide a bag-in-carton which can suitably hold liquid of high viscosity, such as ink and is deformed as the liquid of high viscosity is discharged to thereby stably feed the ink, and a method and a device for forming the bag-in-carton.
A first characteristic feature of the present invention is a bag-in-carton comprising a substantially rectangular parallelepiped carton having a pouring spout mounting panel; a flexible inner bag disposed in the carton, for holding a content; and a pouring spout mounted on the pouring spout mounting panel of the carton and passed through the inner bag and the pouring spout mounting panel, the inner bag being adhered to insides of the carton.
A second characteristic feature of the present invention is the above-described bag-in-carton, wherein the inner bag is fixed by an adhesive to, of insides of the carton, a substantially entire surface of the inside of the pouring spout mounting panel of the carton and substantially entire surfaces of the insides of a pair of the opposed side panels which are adjacent to the pouring spout mounting panel, the inner bag being gradually released off the insides of the carton as the content is discharged out of the inner bag.
A third characteristic feature of the present invention is the above-described bag-in-carton, wherein the carton has one closed side portion and the other closed side portion which are opposed to each other; the inner bag has one seal-closed side portion and the other seal-closed side portion which correspond respectively to said one closed side portion of the carton and said the other closed side portion thereof; and said one seal-closed side portion of the inner bag has a shape corresponding to that of said one closed side portion of the carton.
A fourth characteristic feature of the present invention is the above-described bag-in-carton, wherein the inner bag is formed of a tubular film which is prepared by folding a sheet of film into a tubular shape and sealing end edges thereof into a back sealed portion, the back sealed portion of the tubular film is disposed inside the panel of the carton opposed to the pouring spout mounting panel.
A fifth characteristic feature of the present invention is the above-described bag-in-carton, wherein the inner bag is secured by an adhesive to, of insides of the carton, a substantially entire surface of the inside of the pouring spout mounting panel; the inner bag is adhered to surfaces of a pair of opposed side panels of the carton, which are adjacent to the pouring pout mounting panel, except strips of the surfaces which are substantially normal to a straight line interconnecting the pouring spout and a remotest end part of the carton which are remotest from the pouring spout, and are located at a middle of the straight line, the inner bag is gradually released off the insides of the carton as the content is discharged.
A sixth characteristic feature of the present invention is the above-described bag-in-carton, wherein the inner bag is secured by an adhesive to, of insides of the carton, a substantially entire surface of an inside of the pouring spout mounting panel; the inner bag is adhered to surfaces of a pair of opposed side panels of the carton, which are adjacent to the pouring pout mounting side, except recesses in the surfaces which are extended substantially parallel with a straight line interconnecting the pouring spout and a remotest end part of the carton from the pouring spout, the inner bag is gradually released off the insides of the carton as the content is discharged.
A seventh characteristic feature of the present invention is the above-described bag-in-carton, wherein the inner bag is secured by an adhesive to, of insides of the carton, a substantially entire surface of the inside of the pouring spout mounting panel; the inner bag is adhered to the insides of a pair of opposed side panels of the carton, which are adjacent to the pouring spout mounting panel, the inner bag being adhered to substantially entire surface of the insides of the pair of opposed side panels on the side of the pouring spout with respect to a substantial middle of a straight line interconnecting the pouring spout and a remotest end part of the carton which are remotest from the pouring spout, and the inner bag being adhered to partially surfaces of the insides of the pair of opposed side panels on the side of the remotest end part, the inner bag is gradually released off the insides of the carton as the content is discharged.
An eighth characteristic feature of the present invention is the above-described bag-in-carton, wherein the inner bag is fixed to a substantially entire surface of an inside of the pouring spout mounting side panel of the carton; the inner bag is adhered to the insides of a pair of opposed side panels of the carton, which are adjacent to the pouring spout mounting side panel, in such a manner where the inner-bag adhering surfaces have areas decreasing gradually from the pouring spout to the remote end part, the inner bag is released off the insides of the carton as the content is discharged.
A ninth characteristic feature of the present invention is a method for forming a bag-in-carton comprising the step of adhering a flexible inner bag of tubular film having openings on both ends to a carton blank for a carton at a set position; the step of setting up the carton blank into a rectangular parallelepiped carton so that the carton has openings on both ends thereof; the step of sealing one side opening of said inner bag arranged in correspondence with one side opening of the carton to form one side seal-closed portion; the step of closing the one opening of the carton to form one side closed portion; and the step of inserting a forming jig into the inner bag through the other side opening of the carton and through the other side opening of the inner bag, pressing s
Morisako Takeshi
Takemura Toru
Desai Hemant M.
Parkhurst & Wendell, L.L.P
Riso Kagaku Corporation
Vo Peter
LandOfFree
Bag-in-carton and method and device for forming the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bag-in-carton and method and device for forming the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bag-in-carton and method and device for forming the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2531056