US2160488A - Container - Google Patents

Description

May 30, 1939. w. A. RINGLER 2,160,488

CONTAINER Filed May 20, 1936 4 Sheets-Sheet lV "6 8 v H5. 405]. ,Z

l/Q/ *J4 WZ 5% B 10 7 .5 l

f' i Z L Z 6 2 6 y/ .j 1 Z J 1 A) l a@` .f 'RZ 6' 5 ll ll A w/ A/l j/1f l] INVENToR /0 '5 7 5 9 ,j '5 7 W/LL/AM A. RM/GLER.

'v BY Q u MG ATTORNEY May30,1939.- l n w.A.RY1NG| ER 2,160,488

CONTAINER Filed 'May 2o, 1936 4.sheets-Sheet 2 INVENTOR y y WML/AM lA. R//v Ef?.

BY j YNONM ATTORNEY May 3o, 1939.- w; A. RINGLER l CONTAINER Filed May 20, 1956 4 Sheets-Sheet 3 INVENToR WILLY/AM A. RI/ vaE/.

- MMA ATTORNEY v May 30, 1939. w. ARINGLER CONTAINER Filed May 2.0, 1936 4 `sheets-sheet 4 I Y O INVENTOR- f` W/LL/AM A. R/NGLER.

/0 d BY ,l ATTORNEY- AMM 'I i Patented May 30, 1939 PATENT OFFICE CONTAINER William A. Ringler, Wayne, Pa., assignor to Na7 tional Folding Box Company, New Haven, Conn., a corporation of New'Jersey application 'May zo, 1936, serial No. 80,678

10` Claims.

This invention relates to containers and more particularly to a paperboard container of generallyv rotund cross-section, in which' the body and the bottom are integrally formed from a single blank of paperboard material.

In accordance, with this invention a single blank of paperboard material of generally rec- .tangular shape is divided into a body-forming portion and a bottom-forming portion by a score line extending transversely across the blank. The body portion of the blank is provided with a plurality of longitudinally extending score lines which are preferably comparatively closely spaced so as to divide the blank into a plurality of side wall-forming segments so that when the bodyforming blank is bent into tubular form, a body of generally rotund cross-section is provided. The bottom-forming portion of the blank is provided with two sets of score lines. One series of score lines in the bottom-forming portion are substanltially a continuation of the scores in the bodyforming portion, while the other series 'of score lines are -inclined to the rst series of score lines so as to dene a plurality of generally triangular shaped segments. When the bottom-forming portion has thus been scored the segments can be p turned inwardly so as to lie substantially at right angles to the body-forming segment. When in bottom-forming position the bottom-forming segments will lie ina shingled or generally overlapping relationship.A The adjacent inner ends of the bottom-forming segments may be suitably connected together by a metallic clamp in the form of a button, clip, eyelet or gimlet, as circumstances require. I'he container is thus completely assembled? A cover member for the container which telescopes into or over the open end of' the container may be provided. The cover member may be formed similar to the container proper, comprising side wall segments .forming the flange of the cover and overlapping triangular-shaped end wall segments connected together by a suitable metallic clip to form the end portion of the cover.

My improved container canbe economically assembled from a nsingle blank of paperboard material with little or no waste cuttings resulting. The body and bottom-forming blank as well as the cover-forming blank may be cut to size and scored on an automatic cutting and scoring machine.' The side edges of the blank including the body-forming portion and the end-forming portion, may then be glued, stitched, or otherwise secured together to form a tubular sleeve. The tubular sleeve is then placed in a suitable jig.

the bottom-forming segment turned inwardly and the center clip attached to the free ends of the end wall-forming segments to completethe bottom. The container asthus formed can be made at very low cost. To save shipping and storage expense the tubular sleeve may be shipped and stored in a collapsed, at form, the packer being provided with a container-forming jig which expands the sleeve in tubular form, turns the end4 wall-forming segments inwardly and applies the center clip which connects the free ends of the end wall-forming segments. Considerable economy in shipping and storing the container is thus attained.

The container as thus made has a most attractive appearance. By providing a large num, ber of vertical scores deiining narrow side wallforming segments, the container can be given a substantially circular, elliptical, or rotund crosssectional contour, or,"v if desired, a polygonal contour having ve or more side wall panels. The end wall portion formed as above described presents a substantially flat surface on which the container may rest squarely, .obviating the possibility of rocking movement. The end wall portion has a most pleasing rosette appearance which can not only be economically formed but greatly enhances the beauty and attractiveness of the package. l

My novel container is adapted for the pack- 30 aging of numerous products, such as confections, smoking material, baked goods, edible products,- cosmetics, and numerous other articles of merchandise either in bulk or package form, which are normally packed in metal or paperboard containers. 'I'he container may be given a smooth inside surface by inserting a bottom disk or plate within the container to rest on or adjacent to the end wall segments. A telescoping cover may be provided for the open container, 40 which is constructed similar to the container proper. If desired, a completely closed container .may be formed by providing end wall-forming segments at each end of the body-forming segments. In assembling such a container the end wall segments at one end of the body are sealed by a sealing clip, the contents are then inserted and finally the other end of the container is closed by sealing its end wall-forming segment.

be poured out by simply removing the closure or stopper.

The container may be made liquid-tight and sift-proof by simplyinserting some calking material around the edges of the sealing clip prior to the insertion thereof. 'Ihe calking material should be in the form of a moldable mass, such as a bituminous, cellulosic, glutinous, resinous, or

' other plastic compound which is not affected by the liquid which is packed in the container. The calking material forms a complete seal between the connecting clip and the ends of the bottomforming segments so as to completely seal the same. It will be noted that there areno cuts or other perforations in the bottom or body-forming blank, and by using waterproof, oilproof, or liquid-proof paperboard material, a substantial liquid-tight container is formed adapted for the packaging of such materials as ice cream and ices, liquid and semi-liquid food products, oils, and other liquid, semi-liquid or powdered products.

An object of this invention 'is to provide an attractive container which can be manufactured at low cost, which can be shipped in collapsed, knockdown condition to the user, which can easily 'and quickly be' assembled by the user into container form, and which can be quickly packed and sealed to provide an attractive merchandising package.

Anothercbject of this invention is to provide a container which may be made in substantially rotund form from a single blank of paperboardto the following description taken in connection with the accompanying drawings forming a part thereof, in which:

Fig. 1 is a perspective view of my improved container as it appears when fully assembled with a telescoping cover applied thereto;

Fig. 2 is a plan view of a blank which has been suitably cut and scored to form a cover member for the container body;

Fig. 3 is a plan viewV of a blank suitably cut and scored from which the body and bottom portions of the container may be formed Fig. 4 is an enlarged fragmentary plan view of the closed end of the container, which may be either the bottom or the cover end, certain parts being broken away to illustrate certain features of the construction;

^ Fig. 511s an enlarged transverse cross-sectional view through the end portion of the container, this view being taken on line 5 5 of Fig. 4;

Fig. 6 is a vertical cross-sectional view through my container with the'I cover member applied thereto, this view illustrating the application of the connecting clip to the end wall segments for forming thecontainer end wall;

Fig. 7 is'a topplan View looking down on the..

stage of the manufacturing operation prior to application of the end segment connecting clip;

Fig. 8 is an enlarged top plan view of one form of end wall segment connecting clip as it appears prior to the application thereof; y

Fig. 9 is a vertical cross-sectional view through the end Wall segment connecting clip shown in Fig. 8, this view being taken on line 9-9 of Fig. 8;

Fig. 10 is an enlarged cross-sectional view through a fragmentary portion -of a container having a somewhat modified end wall construction admirably adapted for use ,as a container cover;

Fig. 11 ,is a transverse cross-sectional view of an end wall construction of further modified form;

Fig. 12 is a vertical cross-sectional view through a further modified form of container in which both end wall-forming segments are formed as an integral part of the tubular body wall, the application of the top closure clip. being shown inl dotted lines;

Fig. 13 is a plan view of a blank suitably cut and scored to form the container shown in Fig. l2;

Fig. 14 is an enlarged fragmentary cross-sectional view through the end wall structure of the container shown in Fig. 12, this view illustrating the manner in which the sealing clip may be applied to seal the container, and

Fig. 15 is an enlarged fragmentary top plan view of the container' shown in Fig. 12, certain parts being broken away to illustrate certain features of the construction.

Similar reference characters refer to similar parts throughout the several views of the drawings and specification.

In accordance with this invention the body portion and an end wall or bottom portion forming the container proper may be assembled from a single blank of paperboard material A which has been suitably cut and scored, as illustrated in Fig. 3. A practical and commercially successful container having a generally rotund crosssection formed from a single blank of paperboard material has long been sought. The main difficulties encountered reside in the formation of a satisfactoryen-d wall construction of the desired rotund form which would be attractive and neat in appearance, strong enough to support contents of considerable weight, and which would adequately retain and protect the contents. Where the term rotund is here used it is understood that a container substantially or entirely circular, round, oval elliptical, or partially or entirely curvilinear in cross-section, or having a polygonal cross-section with five or more side wall-forming facesfis indicated. It is acknowledged that containers having four side wall faces formed from a single blank of paperboard material are in common use. When a container of five or more side Wall faces or containers of generally rotund form are to be made, however, difficulties are immediately encountered in the formation of a satisfactory end wall construction from the same blank from whichthe tubular body portion is formed.

'This invention is addressed to the formation of containers from a single blank of paperboard material having a generally rotund cross-section as above defined. As shown more particularly in Fig. 3, the body and end wall or bottomforming blank A is provided with a plurality of parallel extending score lines 2 defining side wall segments I. The body portion of the blank may be divided into any number of side wall segments or panels i so as to obtain a container having a cross-section ofany desired arcuate or polygonal contour. A transverse scoreline 6 deines the body-forming portion from the end wall-forming portion of the container. The end ,wall-forming portion comprises a plurality of substantially triangular-shaped end wall-formingsegments and 1 which are defined by the score lines 8 and 9. The score lines 9 are substantially a continuation of the score lines 2 in the body-forming portion of the blank, while the series of score lines 8 extend at an angle to and between each of the score lines 9. Prefer.- ably the inner ends of the score lines 8 meet the adjacent score lines 9 aft or near the transverse score line 6, while the outer ends'of the nscore lines '8 are positioned approximately midway between adjacent score lines 9. It is understood, however, that this invention is not limited to the particular arrangement of the score lines 8 as shown, but that they may'be arranged at various angles to the score lines 9 to form containers of various forms, 'as will be evident to those skilled in the art.

In assembling the body and end wall-forming blank A the body tab portion 3 is glued, iixed or otherwise secured to the free vertical edge of the side wall-forming panel or segment I at the lother end of the blank, so as to provide a generally tubular body. Similarly the end wall tab portion I0 is glued or otherwise secured tothe free edge of the end wall-forming segment 5 at the other end of the blank, forming a tube y 'Ihe user is provided with a suitable jig, which need not be .here specically described, with which to assemble the container. The jig'operates to push the end wall-forming segments 5 and 1 inwardly as shown in Fig. 7, so that `the triangular segment 1 will fold under the adjacentv segment 5 along the score lines 8 and il,

the. segments 5 vshingling or partially overlapping one another when the end wall is completely assembled. The end wall segments 5 and 1 can be inturned with greater facility if a cut yII is provided to separate the`body-securing tab 3 from the end wall-securing tabl.- Preferably the out l I should extend short of the longitudinal score line 2, as shown in Fig. 3. 'I'he free ends of the end wall-forming segments 5 and 1 are firmly secured together by a suitable clip, clamp,

seal, button, eyelet, gimlet, brace, or other se- A C and D having bottom lwall portions I5 and I1 respectively. When an open container is to be formed, the bottom wall portions I5 and I1 of the sealing member may be spot-welded, as

at I9 (Fig. 5)A or otherwise firmly secured to-v gether. 'The side Wall portions I6 and I8 of the respective dish-shaped lelements C and D ilare outwardly, as shown in Figa 6 and 9, and the clamp can be easily inserted through the opening defined by the partially compressed end wallforming segments 5 and 1. A suitable form block or anvil is inserted into the open container so that when the clamp memberis compressed to ,the point where the end wall segments 5 and 1 extend substantially at right angles to the plane of the side wall-forming segments I, the dishshaped element D will rest on the for'm block or anvil. A compressive force such as pressure or blows is thenA delivered against the, side walls I6 of the dish-shaped element C and preferably also against `the s ide Walls I8 of the dish-shaped element D so as to hatten the side wall portions I6 and I6 out so that they Will assume the general form shown in Figs. 4 and 5 or 6. The" wall portions I6 and I8 of the clamping member,as shownin- Figs. 6 and 9. When the side wall portions lli and I8 have been clamped or stamped into position, the calldng material K will spread out between the dish-shaped members C and D to seal the ends of the end Wallforming segments 5 and 1 so that liquidv or powdered contents will not leak out through or `around the edges of the clamping disks C and D. Any suitable form df calking material, preferably plasticisable in form, may be used. A calking material should be selected which will quickly harden .and set, which is not affected by y the contents, the atmosphere or by other outside iniiuences, and which will not have any harmful effect on the contents. Plastic, cellulose lacquer, where edible food products are to be lvpacked in the container, may be used. Many other plasticisable calking materials may be used, for example, bitumens, resins, varnishes, latex, rubberous materials, animal or vegetable glues either in their natural form or mixed with powdered or granular base materials, packing materials, and cements. Many other plastics and calking materials in common use will occur to those skilled in the art as useful for the purpose, and it is understood that this invention is not limited to any particular form or type of calking material. v

The open container formed from the body and bottom-forming blank A as above described, may be closed by a suitable telescoping cover, as shown in, Figs. 1 and. The telescoping cover may be formed from a single blank of paperboard material B, as shown in Fig. 2, comprising a side Wall of flange-forming portion defined from the end wall-forming portion'by the transverse score line 6. The cover-forming blank may be in all respects similar tov the-bodyfrming blank' as shown in Fig. 3 and heretofore described. It is understood that if the cover member is to be telescoped over the open end of the body member, it should be slightly larger in size, and if the cover member is to telescope into the open body meniber it should be slightly smaller in size.I The required measurements of the tubular. containei` body -and the cover member can be easily computed by the boxmaker and need not here be described. The cover-forming blank comprises the flange-forming segments dened by the score lines 2 and the end wall-forming segments 5 and 1 defined by the score lines 8 and 9. The cover-forming blank is secured together in tubular form by adhesively securing or otherwise attaching the securing tabs 3 of the flange portion and the securing-tab I of the end wall-forming portion respectively to the free side edges of the flange-forming segments I and the free edge of the end wall-forming segments at the other' end of the blank. 'Ihe construction of the cover member from the blank shown in Fig. 2 and the assembly thereof into a suitable cover is the' same as that described in connection with the assembly and formation of an open container from the blank A shown in Fig. 3 and need not here be further described.

There is shown in Fig. an enlarged vertical cross-sectional view through a container end wall of somewhat modified construction. The side wall-forming segments and the end wall-forming segments 5 and 1 may be folded and arranged in the manner hereinbefore described in connection with the construction shown in Figs. 2, 3, 4, 6 and 7. In this form of construction a somewhat modiiied form of sealing member E is provided. 'I'he sealing member here shown may be in the form of a tubular member or eyelet having a tubular body portion 30 and spaced side wall portions 3| and32. The eyelet E is applied to the end wall segments 5 and 1 in the same manner as the sealing member shown in Figs. 6, 8 and 9 and heretofore described. The flange portions 3| and 32 are pressed or clamped against the adjacent paperboard material of the end wall segments 5 and 1 by means of a suitable assembly jig. If desired,lips 33 may be provided on flange portions 3| and 32 to maintain a firmer and more secure grip on the end wall segments 5 and 1. The clamping member shown in Fig. 10 may also lhave calking material applied thereto so as to prevent leakage between the clamping member E and the adjacent end portions of the end wallforming segments 5 and 1.

The clamping eyelet E may be closed by a suitable plug or stopper F. The end wall construction shown in Fig. 10 may be used at either the bottom or top end or both ends of the container. The contents may be inserted into or removed from the container through the opening in the eyelet E, and it is thus seen that this form of construction is admirably adapted for certain uses where it is preferable to completely assemble the con` tainer before the contents are inserted or where a container is desired having a convenient pouring opening through which the contents may be removed. When the contents have been inserted the stopper F is applied, and when the contents are to be removed the stopper F can easily be withdrawn Any form of stopper F, such as a cork, rubber or paperboard-plug, or a metallic or paperboard disk stopper, or any well known form of stopper vmay be used.

There is shown in Fig.v 11 a further modified form of end wall sealing member which may be used. In the form here shown, a dish-shaped element C is positioned against the outside face of the end wall segments 5 and 1. A false bottom or insert member 40 which may extend over the full area of the container is inserted into the tubular body. If desired, the insert 40 may be provided with supporting flanges 4| which closely seat against the side wall segments Filler blocks 43 may be positioned between the dishshaped element C and the insert 40 and these parts may be permanently secured together as by spot-welding or by the provision of a suitable rivet 45 having head portions 46 and 41 which seat against the dish-shaped element C and the insert'40 respectively. .If desired, the insert 40 may-be dispensed With and a second dish-shaped element C positioned against the inside face of -the end wall-formingsegments 5 and 1 may be provided, both dish-shaped elements C being secured together as by spot-welding or bymeans of a suitable rivet 45 with or without filler blocks 43 positioned therebetween. The clamping elevIt has been found that a tighter connection between the ends of the end wall-forming segments 5 and 1 and the end wall clamping member maybe had if the free ends of the segments 5 and 1 are given an arcuate cut 60, as shown in Figs. 13 and 15. Whenthe end Wall segments 5 and 1 as lhere shown are pressed into end wall-forming position a substantially circular opening defined by straight cut edges is provided. Thus the opening defined by the segments 5 and 1 pressed into end wall-forming position is defined by a smooth and regular edge which in some instances per--I mits the end wall clamping member to retain a firmer and more positive grip on the free ends of the end wall-forming segments 5 and 1. The exact shape of the arcuate cutout 60 will depend upon the diameter of the container and the numl ber of end wall-forming segments 5 and 1 with which it is provided, as is evident to those skilled in the art.

One end of the container R may be closed by any suitable form of sealing clamp, as by the disk elements C and D, as shownin Fig. 12, which are applied to the end wall-forming segments by a suitable jig. Where an anvil or assembly form cannot be inserted into the container to close the other end thereof, I preferably provide either an open eyelet element E, as shown in Fig. 10, or a button-shaped stud element G, as shown in Figs. 12 and 14. This button-shaped element comprises a head portion 50, a neck portion 52, and a shoulder portion 5| which rests against the -inside face of the end wall-forming segments 5 and 1. A ang'e portion 53 flares outwardly as shown in Fig. 14 when the button is inserted, after which the flanges 53 are clamped or bent down into firm clamping contact with the end wall segments 5 and 1. A rim portion 54 may be provided to retain a firmer grip on the surrounding end wall segments.

The eyelets E shown in Fig. 10 or the buttons ,G shown in Fig'. 14 may be applied by means of adapted to lie in overlapping shingled relation-l head portion |03 and a neck portion |08 having a suitably shaped vnose |09 insertable through the neck-shaped opening ofthe button to seat Within the buttonand behind the shoulder portion 5| thereof. When the handle portions |05 and |06 of the pivoted clamping members |00 and |0| are pressed together, the anvil portion |01 will bear down upon the flange portion 53 of the button and press the ange portion 53 and the shoulder portion 5| of the button into firm clamping engagement with the adjacent portions of the end xwall-forming segments 5 and The tool may be"` successively manipulated around the ange portion 53 of the button so as to clamp the entire buttoniirmly in position.

It is understood that I also contemplate using automatic machinery for applying the eyelets E or buttons G to the end member. If a contentsinserting opening or a contents-removing opening in the container is desired, one end wall of the container is preferably provided with an open eyelet E, such as shown in Fig. 10, which may be closed with a suitable stopper F. It will be evident that numerous forms of sealing members may be provided within the purview of this invention and it will be understood that the end wall sealing clamps shown in the drawings are presented for purposes of illustration only and that other numerous forms of end Wall closure clamps may be provided Within the purview of this invention.

LContainers made as herein described may be given a perfectly round or curved contour by providing arcuate-shaped scores 6| in the bodyforming blank, the arcuate scores 6| curving inwardly, as shown in Fig. 13, and joining the side wall segment-forming scores 2. The particular shape of the arcuate scores 6| will depend upon the diameter of the container to be formed. When4 the blank is provided with suitable arcuateshaped scores 5| adjoining the longitudinal scores 2 an accurately formed circular or arcuateshaped container body will result.

I' The container as above described may be given a smooth interior end wall surface by the in sertion of an end wall disk 49 into the body portion or the iiange portion thereof as shown in Fig. 5. The insert disk 45 should be slightly oversize in dimensions sc as to firmly press against the side wall-forming segments thus stiiening the end wall and generally reinforcing the construction. The paperboard used in forming the container should possess a tough fibrous texture having a substantial degree of stiffness and rigidity. The container herein described is highly serviceable for packaging loose products in bulk and may be made of any desired size.

While certain novel features of the invention have been disclosed and are pointed out in the annexed claims, it will be understood that various omissions, substitutions and changes may be made by th'ose skilled in the art without departing from the spirit of the invention.

What is claimed is:

1. A rigid contents-supporting container in-A cluding, a` tubular body portion and an end wall portion formed from a single blank of paperboard material, a series of longitudinally extending I ship when arranged substantially at right angles tothe side wall-forming segments, the inner ends of said end Wall segments having a generally ar- `cuate contour so as to define an end wall opening having generally smooth and even edges and gripping means connecting the free ends of said end wall segments to retain the same in end wallforming position, said gripping means comprising a formable flange overlapping the inside face of said end wall segments and a formable flange overlapping the outside of said end wall segments, means extending through the opening defined by the inner ends of saidvsegments connecting said formable anges, said iianges being pressed together by bending so as to rmly grip the ends of said segments extending therebetween.

2. A container end Wall including, integrally connected overlapping segments formed from a single blank of paperboard material, the inner ends of said segments having a generally arcuate contour so as to dene an end wall opening having generally smooth andeven edges, and means for connecting the inner ends of said segments.

3. A container including a tubular body portion and an end wall portion formed from a single .second parallel extending scores in said end portion arranged at an angle'to said rst mentioned f scores, said scores defining connected end wall segments adapted to be arranged in overlapping shingled relationship, arcuate-shaped scores extending transversely to and connecting said first mentioned series of longitudinal scores, said arcuate scores defining the body portion` from the end wall portion permitting said body portion to assume a true curvilinear form when said end wall segments are turned inwardly, the inner ends of said end wall segments having a generally arcuate contour so as to dene an end wall opening having generally smooth and even edges, and means for connecting said inturned end wallforming segments in fixed end Wall-forming relationship.

4. A container formed from a single blank of vpaperboard material including, a tubular body portion having a generally rotund cross section, an end wall portion comprising connected segments arranged in shingled relationship, and means for connecting and sealing the adjacent inner ends of said end Wall segments, said sealing means including a dish-shaped backing portion positioned within the container and overlapping said segments, and a dish-shaped outer portion connected to said inner dish-shaped portion, said outer dish-shaped portion having a bendable ange extending over the outside surface of said end wall portion, said inner dish-shaped backing portion and said flange being pressed together into sealing contact .with the inner ends of said segments.

5. A container formed from a single blank of paperboard material including, a tubular body portion having a generally rotund cross-section,4 an end wall portion connected to and extending inwardly from said ,tubular body portion, said end Wall portion comprising connected segments arranged in shingled relationship, and means for connecting and sealing the adjacent inner ends of said end Wall segments, said sealing means including a pair of imperforate dish-shaped'sealing elements-having a portion extending through the opening defined by the inner ends of said segments connecting said sealing elements together,

said sealing elements having formable laterally extending flanges overlapping the inside and outside faces of said segments at the inner ends thereof, said ilanges being pressed together into sealing gripping contact with the adjacent inner ends of said segments.

6. A paperboard container formed from a single blank of paperboard material including, a tubular body portion having a generally rotund cross-section, an end wall portion integrally formed therewith and extending inwardly substantially at right angles to said body portion, and means for sealing the opening defined by the inner end of said end wall portion, said means including imperforate disc-shaped closure elements closing said opening and overlapping Vthe inner ends of said end wall portion with the end wall portion positioned between said disc elements, and a calking plastic positioned between said elements sealing the inner ends of said end wall portion with respect to said disc-shaped elements.

7. A container including, a tubular body portion and an end wall portion formed from a single blank of paperboard material, said end wall portion comprising integrally connected segments arranged in overlapping relationship, and means for sealing the inner adjacent ends of said segments, said means including a closure element having spaced formable ange portions overlapping of the opposed faces of the inner ends of said segments, said ilange portions being pressed together into gripping engagement with the inner ends of said segments, and a calking plastic providing a tight seal between the inner ends of said segments and said ilange portion.

8. A container including, a tubular body portion and an end wall portion formed from a single blank of paperboard material, said end wall portion comprising integrally connected segments arranged in shingled overlapping relationship, and means for sealing the inner ends of said segments, said means including a pair of spaced 9. A container including, a tubular body portion and an end wall portion formed from a single blank of paperboard material, said end wall portion comprising segments arranged in overlapping relationship, means connecting the inner ends of said end wall segments and forming a contents-inserting and/or a contents-removing opening for said container, said means including a closure element having spaced formable ilange portions overlapping the opposed faces of the inner ends of said segments, said llange portions being pressed together into gripping engagement with the inner ends of said segments, and a calking plastic providing a tight seal between the inner ends of said segments and said flange portions,

10. A container end wall including, integrally connected overlapping segments formed from paperboard material, means connecting the inner ends of said segments, said means including an open eyelet clamped to the inner end portions of said segments, said eyelet having spaced formable ange portions overlapping the opposed faces of the inner ends of said segments, the flange portions being pressed together into gripping engagement with the inner ends of said segments, a calking plastic providing a tight seal between the inner ends of the segments and said flange portions, and a closure for the opening in said eyelet.

WILLIAM A. RINGLER.

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