US2425708A - Container - Google Patents

Description

Aug. 12, 1947. I l. 1.. wlLcox 2,425,708

CONTAINER Filed Aug. 18, 1944 INVENTOR:

Isaac L. 77700;

ATTORNEYS Patented Aug. l2, 1947 UNITED STATES. PATENT I OFFICE CONTAINER Isaac L. Wilcox, Fulton, N. Y., assignor to Oswego Falls Corporation, Fulton, N. Y., a corporation of New York Application August 18, 1944, Serial No. 550,057

z Claims. (o1. 229-55) This invention relates to containers formed of sheet material such as paperboard, and has as an object an end closure structure which is particularly strong and durable, whereby the container, although formed of relatively low strength material, will effectively withstand rough hancharacters designate correspondingparts in all the views. v I

Figure 1 is a side elevational view of a container embodying my invention. 7

Figure 2 is a top plan view of the container shown in Figure 1.

Figure 3 is a fragmentary sectional view of the top portion of the container taken on line 3-3, Figure 1. l

The body of the container is of tubular formation, rectangular in cross section, and is provided with a suitable bottom end closure ii. The top closure I2 is formed about its periphceive the end edge of the body"! and enclose the same. The channel I3 is sealed to the end of the body. Usually, if the container is formed of fibrous material, such as paperboard, at least the interior of the body and the inner surface of the closure l2 and channel l3, and preferably the exterior surfaces thereof as well, are coated with an impervious, heat-sealing material which renders the container impervious to moisture and this coating, at the same time, affords a convenient means of permanently sealing the inner and outer walls of the channel l3 to the top edge of the body.

The sides of the channel formation adjacent each corner are pressed or pinched together to form corner ribs l5. If the outer surface of the end closure is coated with the thermoplastic macry with an inverted channel l3 adaptedto reterial, this pressing action is done with heated tools, whereby the portions of the channel pressed together to form the ribs I5 are permanently secured together. The channel l3, intermediate the corners, is inclined inwardly as at I6.

This arrangement forms a truss structure which his strong and rigid and affords particularly good protection at the corners of the end closure which, with ordinary construction, often open up or leak in the event the container is dropped after it has been filled with liquid, or other heavy contents.

What I claim is:

1. A container formed of sheet material com-' prising a tubular body of rectangular cross section, an end closure formed at its periphery with an uninterrupted inverted channel enclosing the end portion of the body and being sealed thereto, the sides of said channel adjacent each corner being pressed together to form a corner rib, and the channel intermediate the corners being inclined inwardly.

2. A container formed of sheet material comprising a tubular body of rectangular cross section, an end closure formed at its periphery with an uninterrupted inverted channel enclosing the end edge of the body and being sealed thereto, the sides of said channel adjacent each corner being pressed together and sealed to form a corner rib, and the channel intermediate said corners inclining inwardly.

ISAAC L. WILCOX.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number

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