US2089483A - Package and method of making the same - Google Patents

Description

Aug. 10, 1937. w. H. JAENICKE PACKAGE AND METHOD OF MAKING THE SAME Filed Jan. 17, 1936 INVENTOR WILL/14M l1- JqE /6 14/5 ATTOR N EY Patented Aug. 10, 1937 UNITED STATES PACKAGE AND METHOD OF MAKING THE SAME William H. Jaenicke, San Francisco, Calif. Application January 17, 1936, Serial No. 59,611

Claims.

My invention relates to a sealed package; and an object of the invention is to provide a package for material of a delicate or perishable nature which is moisture proof and air tight.

Another object of the invention is the provision of a package of the character described which lends itself to rapid production on automatic machinery of relatively simple character, most of which is already well known.

Still another object of the invention is the provision of a package characterized by a thoroughly tight closure and low cost of production.

The invention possesses other objects and features of advantage, some of which, with the foregoing, will be set forth in the following description of my invention. It is to be understood that I do not limit myself to this disclosure of species of my invention, as I may adopt variant embodiments thereof within the scope of the claims.

Referring to the drawing:

Figure 1 is a perspective view of a package em- .bodying my invention. The parts are shown near the beginning of the folding operations that form the sealed package. Portions are broken away to disclose the structure.

Figures 2 and 3 are perspective views of the package showing successive positions in the folding of the parts.

Figure 4 is a fragmentary view partly in vertical section, and showing the position of the parts of the package when sealed.

There are many articles of commerce, especially certain food products, which are sensitive to surrounding conditions so that they must be pro- 5 tected against moisture, foreign flavors and other influences which would affect their quality or the condition in which they reach the consumer,

Many of these food products are packed in glass or metal cans, but it is obvious that the cost of such packaging is relatively high, and that such protection is desirable for many materials which must be cheaply packed. Powdered and brown sugars, various sorts of flour products, especially those including self raising ingredients, and

fudge or candy making preparations are only a few of the materials which will take or give up moisture or absorb added flavors or loose flavor if not protected by a tight sealing within a tight container. It is the broad purpose of my invention to provide a method and means of accomplishing this result inexpensively.

In terms of broad inclusion, the package of my invention comprises an outer carton having inner and outer cover flaps, and a liner bag adapted to fit within the carton and having its open end closed and folded back upon itself to form a seam which lies between the inner and outer flaps. Means, conveniently an adhesive, are provided to secure the cover flaps together so that the seam is pressed between the cover flaps. Additional 5 security is obtained by the fact that the upper portion of the bag immediately below the seam is drawn tightly around the free edge of the inner flap.

Describing in detail the embodiment of my in- 10 vention illustrated in the drawing; a carton 2 is provided for the outer enclosure of the package. This carton may be of any suitable material such as paper board and is of any suitable size and shape. The ends of the carton are closed by the 15 usual cover flaps and in Figure 1, the inner side flap 3 is shown folded down over the end flaps 4, the outer side flap 6 extending horizontally to the rear.

Within the enclosing carton is a liner bag 1 within which is the contents of the package which may be assumed to be a fudge powder particularly sensitive to changes in humidity of the surrounding air and capable of ruinous changes in flavor by loss or absorption. I prefer to use a laminated bag having glassine paper for the inner layer and tin foil for the outer layer, because of the excellence of the protection it affords, and also because the foil contributes to the fixity of the creases in the closure. Other types of bags such as parchment or paper impregnated with parafiine may also be used with success.

The bag is inserted in the carton and filled, and then the upper portion is collapsed to one side. The end flaps 4 and the inner side flap 3 are then turned in so that the parts appear as in Figure 1. Next the free end of the bag is folded over on itself along a line indicated in Figure 1 by the dotted line 8, so that both sides or walls of the bag are caught in the fold or seam 9 thus formed, as shown in Figure 2. Preferably the seam is then compressed to sharpen or fix the crease and hold the bag walls tight together in the seam.

A suitable adhesive l I is then applied over a selected area of or over the whole area of the outer side flap 6, Figure 2, and the flap turned up and in, as indicated in Figure 3, to seat upon the inner flap 3. This folding in of the outer flap carries with it the seamed upper end of the bag, pulling the bag sides [2 just below the seam, against the free edge l3 of the inner flap and pressing the seam 9 between the two flaps 6 and 3. The outer flap is held firmly against the inner flap for a moment until the adhesive layer il sets, when the package is complete.

The relation of the parts is clearly shown in Figure 4 where the proportion of the adhesive layer and other parts is somewhat out of scale 5 for the sake of clarity. It is to be noted that the open end of the bag has been rendered doubly tight, first and chiefly by the sharp crease and seam, and secondly in the fixing of the seam by catching it between the two cover flaps. Since the inner end flaps 6 provide added support for the free end of the inner side flap 3; and the outer side flap is adhesively united to the inner side flap, it follows that the seam 9 is retained in the tight fold with which it is formed, and entrance into or exit from the bag completely blocked.

Thus odors or moisture from the adhesive or from other sources are positively excluded from the bag and the packaged product reaches the consumer in exactly the same condition in which it was packed and sealed up, with no loss of flavor or moisture content, and no acquisition of moisture or foreign flavors.

26 While I have explained the method of sealing as carried out by manual manipulation, it is manifest that in commercial production, suitable instrumentalities are devised for the automatic handling of thepackages and all the steps of 30 filling, folding and sealing.

I claim:

1. A package comprising a carton having inner and outer cover flaps, a liner bag for the carton having opposite sides of the bag at the open end folded back to form a seam and lying between the inner and outer flaps.

2. A package comprising a carton having inner and outer cover flaps, a liner bag for the carton having opposite sides of the bag at the open end folded back to form a seam and extending around the free edge of the inner flap and between the inner and outer flaps.

3. A package comprising a carton having inner and outer cover flaps, a liner bag for the carton having opposite sides of the bag at the open end folded back to form a seam and lying between the inner and outer flaps, and means for securing the two flaps together.

4. A package comprising a carton having inner and outer cover flaps, a liner bag for the carton having opposite sides of the bag at the open end folded back to form a seam and extending around the free edge of the inner flap and between the inner and outer flaps, and an adhesive interposed between the free edge of the outer cover flap and the inner cover flap.

5. The method of sealing the mouth of a bag liner in a carton having inner and outer cover flaps which comprises closing the inner cover flap with the closed open end of the bag extending past the free edge thereof, folding the closed open end of the bag sharply back upon itself to form a seam, applying adhesive to one of the cover flaps, and folding over the outer cover flap to press the seam between the flaps and adhesively unite the flaps.

M H. JAENICKE.

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