US2382035A - Container - Google Patents

Description

Aug. 14, 1945. I. L. WILCOX ET AL 2,382,035

CONTAINER Filed June 19, 1943 VII/111 276!! Patented Aug, 14, 1945 CONTAINER Isaac L. Wilcox and Raymond Borning, Fulton, N, Y., assignors to Oswego Falls Corporation, Fulton, 1., a corporation of New York Application Junelil, 1943, Serial No. 491,490

2 c ai s. (01. 229-4.?)

This invention has to do with containers formed of fibrous material such as paperboard,

and particularly such containers shipped to the user in knock-down condition and which the user assembles at his packaging plant.

In late years, such containers have been use in extremely large volume, particularly for the packaging of commodities such as ice-cream and frozen foods. These containers are usually of substantial size, having a capacity from 2% to 5 gallons. Heretofore, the bottom closure of those containers 1 has been secured to the body shell of the container by use of a metal ring which, during the assembly of the container, is crimped into engagement with the bottom closure and the end of the shell.

This construction has a number of disadvan:

tages. The formation of the metal ring is a separate and additional operation in making up the parts of the container; it is another element to handle during the assembly of the container; the metal ring adds appreciably to the cost of the paper container and to the shippingof the container in knock-down formation. In addition to these disadvantages it is, at the present time,

knock-down condition, the body shell is provided with a, plurality of axially extending scores ll, wherebyit may be folded flat, or substantially flat, for shipment in the conventional manner. The bottom structure of the container consists of a band member I! and a bottom closure disk II. The band member I2 is of appreciable length and adapted to snugly encircle the end portion of the shell ll. Usually these containers are cylindrlc in cross section, as here shown.

The band I2, at one end, is rolled inwardly to form a closed circular bead l4. That is, the free end I! of the bead is continued until it at least extremely difilcult to procure metal for the fabrication of these rings.

This invention has as an object a container construction in which all'of the parts oi the container are formed of paperboard, or other fibrous material, the structure being such that the container is quickly and conveniently assembled and when assembled is liquid tight, and the bottom closure is secured to the body shell of the container in such manner that the container will carry a greater weight than similar containers heretofore assembled with metallic parts.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed;

In describing this invention, reference is had to the accompanying drawing in which like characters designate corresponding parts in all the views.

Figure 1 is a side elevational view, partly in section, of a container embodying our invention.

Figure 2 is an enlarged fragmentary view, partly in section. of the band member and contiguous portion of the body shell, the parts being partly assembled.

Figure 3 is a view, similar to Figure 2, illustrating the band member positioned on the body shell and with the bottom closure disk in position.

The body shell I0 is of tubular formation. It

I the container is to be shipped to the usr in meets the initial curvature of the bead.

In the assembling of thecontainer, the end portion of the body shell 10 is positioned in the band. As previously stated, the band is preferably a snug fit with the shell and in view ofthis, the shell is pressed into the band until the end edge It of the shell engages the curvature of the bead 1| 4, as illustrated in Figure 3. In this position, the end edge of the shell is yieldingly pressed against the inner surface of the band. The closure disk It, which is of relatively thick material, is then inserted in the body shell and the disk positioned square with the axis of the shell and seated upon the bead ll. Preferably, the band I2 is formed with an annular groove 18 on its inner surface and positioned just above the plane of the top of the bead I4, and the closure disk I3 is preferably oversize, that is, of greater diameter than the inner diameter of the shell l0, all whereby when the disk II is positioned on the head, the body shell is pressed outwardly into tight engagement'with the band and is forced into the groove l8, as illustrated in Figure 3.

With this structure, the periphery of the disk I3 engages the body shell In in liquid tight formation. Also, the end portion of the body shell is interlocked with the band l2 by being pressed into the groove I8 and also by the action of the bead l4. Any downward pressure on the bottom disk l3 by the contents of the container suificient to cause the bead [4 to tend to flatten, materially increases the outwardly radial pressure of the bead against the end edge of the shell, whereby the shell is more firmly gripped between the band and the bead, and if this pressure becomes great enough to eifect any relative axial movement between the shell and the band, the gripping pressure of the bead is thereby increased due to the fact that the free end portion l5 of the bead tends to move about a center which is approximately where the top of the bead is engaged by the disk II.

' Tests have proven that the bottom structure described will sustain even a greater weight when the filled container is handled by the body shell than will the conventional bottom structure secured to the shell by the crimped metallic ring.

The structure has additional advantages of importance. For example, it is not necessary to form the shell with a bead corresponding to the groove I8 in order to properly secure the bottom structure to the shell. This is due to the fact that the band I! encircling the shell will withwhere the bottom closure would readily leak and the closure would not'be fixedly secured to the stand the radially outward thrust of the bottom 7 disk [3 suflicient to force the shell into the groove 18. This not only eliminates a step in the manufacture of the shell but avoids the probability of the lower end of the shell collapsing axially as it ,would do when the shell was forced into the bead I4 it the fibers were previously weakened by rolling a head in the shell.

Another advantage of this structure is that as the shell is pressed into the band l2, as illustrated in Figure 2, the lower end of the shell is engaged by the curvature of the bead l4, whereby the edge of the shell is permitted to easily enter between the bead and the side wall of the band without any possibility of splitting or otherwise into tight engagement with the wall of the band.

weakening the lower endportion of the shell;

These advantages are particularly important in view of the fact that the container is assembled by unskilled help at the packers plant and heretofore in structures where the bottom closures were pressed onto the end of a! shell, the bottom end of the shell would be folded upwardly or otherwise damaged so that there would be places 2. A container comprising a tubular body shell formed of fibrous material, a band member formed of fibrous material and rolled inwar ly at one end to form a closed head, said band member encircling the lower end portion of said shell with the end edge thereof positioned between said bead and the wall of the band, and

the wall of said band being formed with a groove 7 in its inner surface, said groove being positioned in register with the top of said head, said head yieldingly pressing the end edge of the shell against the wall of the band, and a bottom closure disk arranged in the shell and positioned upon said bead and pressing the shell outwardly into tight engagement with the wall of the band.

IsAAc L. wmoox. RAYMOND HORNING.

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