US2178044A

US2178044A - Bag top closure means

Info

Publication number: US2178044A
Application number: US156856A
Authority: US
Inventors: Vesconte Edward L Le; Herbert J Harvey
Original assignee: UNION LITHOGRAPH Co Inc
Current assignee: UNION LITHOGRAPH Co Inc; UNION LITHOGRAPH COMPANY Inc
Priority date: 1937-08-02
Filing date: 1937-08-02
Publication date: 1939-10-31
Anticipated expiration: 1956-10-31

Description

0t.31,1939., 5.1.. LEVESCONTE Em. 2 118,044

BAG TOP CLOSURE MEANS Filed Aug. 2, 1937 INVENTOR. E0 WARD L. is Vsscgzwr: g -28527 J. HARVEY.

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Patented Oct. 31, 1939 1 BAG. Tor oLosUnE. MEANS Edward L. Le Vesconte and Herbert J. Harvey, San

Francisco, Calif., assignor to The Union Lithograph Company, Inc., San Francisco, Calif, a corporation of California Application August 1937, Serial No..156,856

6 Claims. (01. 229-65) This invention relates to bag closures of the M type adapted for use with bags of Cellophane ,or like material. relates to bag closure means of the class in which a supplementary memberof a foldable material is attached to the bag to efiect the closing of the package.

In recent years there has been a great tendency among purveyors of foods, especially cookies,

7 cakes, crackers and the like to employ Cellophane packages for their goods. These have conveniently taken the form of bags. With the extended use of this packaging medium it has been observed that while numerous methods of closing a the bags have been utilized, apparently no one has devised a closure which could be subjected to repeated use during the period in which the contents of the bag were being consumed, without loss of efficiency. Additionally, little or no attention seems to have been given to simplify- "ing the original or factory closing operation,

which is so essential in these daysof high speed,

low cost production. Y s

As a consequence of these deficiencies in the prior art, it is noticeable'that many makeshift devices have been resorted to with the result that many of them, if not all, defy the dexterity of experienced packagers and run up production costs to the danger point.

With these observations in mind it is an object of the present invention to provide an extremely inexpensive, and yet practicable closure means which will fully meet the needs of the art.

These and other objects have been attained through the provision of a two-fold cardboard closure, adapted to be interfolded with the mouth of the bag, and having a pair of cars or tabs of bendable metal so positioned with respect to the folds that when bent a tightly locked package will result.

Furthermore, the present invention contemplates the use of a combination score and cutscore line to define the first fold of the closure, instead of the conventional score line, as a means of facilitating the folding operation and attaining an even, fiat fold.

These and other objects will become more apparent as the specification proceeds and the particular novelty will be pointed out in the appended claims.

In the drawing:

Figure 1 is a plan view of the face of the cardboard closure means forming the subject matter of the present invention, I

Figure 2 is a perspective view of the closure M'ore particularly, the invention with a bag in position for the first'folding opera-- tion,

Figure 3 is a perspective view of the closure and bag after the first folding operation,

Figure 4 is a perspective view of the closure after the second folding operation, 7

Figure 5 is a perspective view of the bag and closure following the bending of the tabs to lock the package, and

Figure 6 is a plan view showing the face of the closure or the side opposite that of Figure 5.

The numeral 9 designates a bag closure, rectangular in shape, made of cardboard or any similar, flexible material. This member is divided into three sections or folds H], H and I2 by the score lines l3 and M, respectively.

The fold II is provided with the self-stapled tabs or ears E5 of bendable metal.

As an aid to the folding of the member ,9 upon itself, and to insure evenness in the fold, we have provided the novel arrangement along the score line l3. Instead of the usual or conventional double score-line (such as line l4) extending clear across the member 9, we have scored the member 9 inwardly from its sides and employed a cut-score line It in the medial portion. The characteristics of this partial cut-score line I 6 are best understood when it is borne in mind that where a cardboard stock fifteen thousandths of an inch is employed, the cut is approximately twelve thousandths of an inch deep, leaving a skin approximately three thousandths of an inch in thickness.

The function of the line l3 as thus characterized, is that when the operator grasps the member 9 at its side edges and efiects the hereinafter described folding operation, evenness of the first fold along the line I3 is insured in contrast to, what may be termed, the bellying of fold H] which would be the inevitable result if line [3 were merely a conventional scoring. The bellying of fol-d Hi would seriously interfere with the completion of the folding operation, particularly the next step (see Figure 4) and this is especially true where speed is of the essence.

It will be noted that the main body section l2 of the member 9 is employed as a space for the imprinting of trade marks or other advertising.

In utilizing the closure means forming the subject matter of this application, in connection with the mouth of a bag, the successive steps are those illustrated in Figures 2 to 5, inclusive, of the drawing. The flattened mouth of a bag is first laid over the whole of the member 9, utilizing the reverse of the side illustrated in Figure 1. Fold i is then folded over section II. It will be noted that in this operation the top of bag 20 is clasped between folds I0 and l I.

Fold H is next folded along the score line H over fold In and member 9 and the engaged portions of the mouth of the bag. Ears l5 are then bent over the matter thus enfolded and flattened on the face of the member 9 (see Figure 6), to complete the folding operation.

When it is desired to use only a portion of the contents of the package thus closed at a particular time, one need only straighten the tabs l5 and unfold the member 9 to gain access to the bag 20. The heretofore described closing operations are so relatively simple that once the bag is seen in the closed condition of Figure 6, one would have no difficulty in re-closing it. Thus the subject matter of this invention will serve to provide an efficient, re-usable closure for the purchaser.

It is believed apparent from the foregoing that We have devised an extremely efiicient structure for the purpose disclosed and one which is inexpensive to manufacture. Bearing in mind the small margins operated upon in those industries in which the invention will be particularly useful, the low cost of manufacture is an important item.

Having thus described our invention, what we claim and desire to secure by grant of Letters Patent, is:

1. In a bag closure of the class described, a

, rectangular cardboard member having a pair of fold-lines spaced apart from one of its edges to define two foldings of the member upon itself, the fold-line nearest the edge of said member being characterized by a cut-score intermediate its ends.

2. In a bag closure of the class described, a rectangular cardboard member having a pair of fold-lines spaced apart from and parallel to one of its edges to define two foldings of the member upon itself, at least one of said fold-lines being characterized by a cut-score intermediate its ends.

3. In a bag closure of the class described, a

rectangular cardboard member having a pair of fold-lines spaced apart from one of its edges to define two foldings of the member upon itself, the fold-line nearest the edge of said member being characterized by a cut-score intermediate its ends, and means integral with said member for looking it in its folded position.

4. In a bag closure of the class described, a rectangular cardboard member having a pair of fold-lines spaced apart from and parallel to one of its edges to define two foldings of the member upon itself, at least one of said fold-lines being characterized by a cut-score intermediate its ends, and a pair of bendable metal tabs secured at opposite ends of one of said foldable sections of said member, said tabs serving to lock the closure in folded condition when bent about the edges thereof.

5. In a package, a bag, a closure for the mouth thereof comprising a rectangular cardboard member having a pair of fold-lines spaced apart from and parallel to one of its edges to define two foldings of the member upon itself, each of said foldings engaging and interfolding a corresponding area of the bag adjacent said mouth, at least one of said fold-lines being characterized by a cutscore intermediate its ends.

6. In a package, a bag, a closure for the mouth thereof comprising a rectangular cardboard member having a pair of fold-lines spaced apart from and parallel to one of its edges to define two foldings of the member upon itself, each of said foldings engaging and interfolding 2. corresponding area of the bag adjacent said mouth, at least one of said fold-lines being characterized by a cut-score intermediate its ends and a pair of bendable metal tabs secured at opposite ends of one of said foldable sections of said member, said tabs serving to lock the closure in folded condition when bent about the edges thereof.

EDWARD L. LE VESCONTE. HERBERT J. HARVEY.