US2007661A - Dustproof carry bag - Google Patents

Description

G. W. POPPE DUSTPROOF CARRY BAG Filed May 5, 1934 7 a 4 f I l V l v IHH 7 lull 6 lllllllllllllllll lllllllll lllll -111}lbiiflliiilwl uhr fi I INVENTOR 60P6 M/ P0PP ATTORNEY ll JAM.

July I 9, 1935.

Patented July 9, 1935 PATENT OFFICE nos'rrnoor oamuz BAG George W. Poppe, Brooklyn, N. Y., assignor to Equitable Paper Bag 00., 1110., Brooklyn, N. Y., a. corporation of New York Application May 5, 1934, Serial No. 724,145

4 Claims.

This invention relates to paper bags and more particularly to what isknown to the trade as a carry bag, 1. e., one in which some means are provided whereby the bag may be conveniently held. 1

One of the objects of the present invention is the production of a carry bag which may be made by ordinary bag machinery and at low cost but which nevertheless is amply reinforced and which is substantially dustproof.

Another object is the production of a carry bag in which a minimum amount of paper is used consistent with the production of such a bag having the characteristics necessary for the performance of its intended functions.

With these objects in view a feature of the invention resides in using a tube section as a foundation for the bag, which tube section has a short lip.

A further feature consists in the manner of folding the tube'sectionto form a practically dust-proof bag, Still further features are to be found in the formation of a tab in the bag lip and in the manner in which the tab is reenforced.

Further features and advantages will become apparent from the following description and claims when taken in connection with the accompanying drawing in which Figure 1 is the front view of a tube section from which the bag is formed;

Figure 2 is a rear view thereof;

Figure 3 is a front view of the finished bag with the top of the bag folded over and the tab passed through the openings in the bag walls;

and

Figure 4 is a section on the line li of Figure 3.

Paper bags are distinguished from envelopes in the practical art principally by the methods and machinery by which they are produced.

In the production of paper bags a web of paper is first folded about a former and the edges of the web are pasted together to form a bag tube. By methods and machinery well known in the art, such a tube is chopped into sections, each section being subsequentlymade into a bag. The tube sections are cut in such a way that the Walls thereof are offset in the direction of the tube length. A bag made from such a tube section is made without any waste of paper since the top of one bag section fits accurately into the bottom of the succeeding bag section.

The bag of the present invention is made from a tube section of the general character above outlined but in which the offsetting of the bag Walls is comparatively slight.

Referring to Figure 1, the reference character I indicates the front wall ofa bag section and 2' indicates the rear or seam wall thereof. Figure 2 shows the reverse side of the section, the seam wall 2 being uppermost.

In folding the web to form the tube out of which the bag of my invention is to be made, I overlap the seam as is usual in an ordinary bag. The amount of overlap is clearly indicated by the full line and dotted line, Figure 2, the seam being indicated by reference character 3. 4 indicates one edge of the seam and 5 indicates a line of paste which secures the edges of the web to thereby form the bag tube.

As stated, the walls of the section are slightly offset, thereby producing a small lip hat the top of the bag and a corresponding cut-out l at the bottom of the section as clearly shown in Figure 2. The bottom of the bag section is folded along the line bb, Figure 2, and includes a substantial portion of the seam wall of the tube, thereby giving substantial reinforcement to the corners of the bag when the bottom is so folded and pasted.

The top of the bag of my invention is scored along the line H and when the bag is folded along this score line, both the front wall and the seam wall are included within the fold, thereby giving substantial reenforcement to the top of the bag and rendering it substantially dust-proof.

I also form a tab 8 in the lip 6, said tab being of a width not greater than the width of the overlapped seam. It results from this that said tab' is of double thickness and its two plies are held together by the paste applied to the seam.

In order that the bag may serve its purpose as a carry bag, I form apertures 9 through both walls of the bag centrally of the seam, said apertures being located at such a distance below the top of the bag that the tab 8 may be conveniently passed through said apertures when the top of the bag is folded along the line a--a. The finished bag is shown in Figure 3, the bottom being folded over on to the seam wall, while the top (I the bag is folded over on to the front wall with the tab 8 passed through the apertures 9. The overlapped seam gives reenforcement to the tab and reenforcement to the bag adjacent the apertures 9.

The particular method by which the tab 8 is formed is disclosed in my application Serial No. 724,143 filed May 5, 1934 and as disclosed in said application the seam may be of the same width as the tab.

I am aware that bags made from a tube section having comparatively slight offset walls have been proposed but such bags, insofar as I am aware, have been intended for use for second class mail matter and the top of the bag is folded back upon the seam wall onto which the bottom of the bag is folded and the top of the bag is open for the lnspection of the contents. Such a bag is not intended as a carry bag and is not dust-proof.

The bag of the present invention not only provides a dust-proof receptacle but by reason of the very slight offsetting of the walls of the tube from which the bag is made there is considerable saving in paper over a bag having a longer lip intended to be folded down over the front wall to close the bag mouth. Likewise the small offsetting of the walls permits of a small bottom fold but nevertheless one which results in a bag which is reenforced at the corners.

What I claim is:--

1. A carry bag having a front wall and an overlapped seam wall and a line of paste adjacent the edge of the seam; the seam wall extending beyond the front wall at the mouth of the bag, said seam wall having a tab formed in the upper edge thereof and including the pasted portion of the seam and of a width equal to the width of the overlapped seam, the mouth of the bag having a line of fold below the top of the front wall, and a finger hole through both bag walls through which said tab may be passed when the upper part of the bag is folded along said line of fold.

2. A carry bag formed from a section of a tube having an overlapped seam, said bag having a bottom flap folded over on to the seam wall and including a substantial portion of the seam wall within the fold, the seam wall of the bag extending beyond the front wall at the bag mouth, the mouth of the bag having a line of fold below the front wall thereof, a finger hole through both bag walls and a tab formed in the upper edge of the seam wall of a width equal to the width of the seam.

3. A tube section out of which a bag is to be formed, said section having a front wall and an overlapped and pasted seam wall, the walls being slightly offset in the direction of length, the seam wall extending beyond the edge of the front wall at the top of the bag section and the front wall extending beyond the seam wall at the bottom of the bag section, and a tab formed in the upper edge of the seam wall of a width equal to the overlapped seam.

4. A tube section out of which a bag is to be formed, said section having a front wall and an overlapped and pasted seam wall, the walls being slightly offset in the direction of length, the seam wall extending beyond the edge of the front wall at the top of the bag section and the front wall extending beyond the seam wall at the bottom of the bag section, and a tab formed by slits in the upper edge of the seam wall, said slits being of a width equal to the overlapped seam, each slit being coincident with the respective edges of said seam.

GEORGE W. POPPE.

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