US2603404A - Carton - Google Patents

Description

July 15, 1952 E. E. ELDREDGE CARTON 3 Sheets-Sheet 1 Filed Sept. 20, 1949 July T5, 19512 E. E. ELDREDGE CARTON 3 Sheets-Sheet 2 Filed Sept. 20, 1949 Gttomeg July 15, 1952 E. E. ELDREDGE CARTON 3 Sheets-Sheet 3 Filed Sept. 20, 1949 ira- Patented July l5, 1952 CARTON Elmer E. Eldredge, Plymouth, Wis., assigner to Robert L. Eldredge, Plymouth, Wis.

Application September 20, 1949, Serial No. 116,68!

fThe carton to which this invention relates is designed particularly for the storage and shipping of cheese in rectangular-block form, although manifestly it may be put to many other uses. I

It is customary in cheese factories to prepare the raw or natural cheese in rectangular blocks of substantial size and weight, and to wrap the cheese in a suitable wrapping to exclude the air during the curing process while allowing the gases which form to escape. An example of such a wrapping is disclosed in my Patent No. 2,540,815, issued February 6, 1951. The cheese so wrapped is placed in a suitable container for storage and may eventually be shipped in the same container.

One of the requisites of such containers is strength, for the cheeses are commonly piled one on another and the containers must sustain the Weight of those on top. Frequently the containers are -made of wood which is sometimes reinforced.

In accordance with this invention, I have devised a container which is a cardboard carton, preferably of corrugated paper, constructed to have the requisite strength. Among the special merits of the carton are economy in manufacture 1 Claim. (Cl. 229-16) and simplicity and ease of fabrication and use.

The cartons are made from blanks which are rectangular and involve no waste whatever. The operation of cutting and scoring the blanks for folding is very simple.

A characteristic of the carton is the fact that it is made from a single, unitary blank and yet has double walls on all four vertical sides, thereby affording the strength required. Also the four vertical corners are reinforced by extra strips, making the vertical walls in the immediate vicinity of the corners three ply.

As will be observed from the following description of the illustrated embodiment of the invention, the blank is cut and scored to fold along definite lines and provide the multiple vertical walls, in eiect one complete carton inside another with a close t, but made from a single blank. The front and rear'inside vertical walls are composed of extensions to the inside side walls which are folded in and meet centrally of the bottom wall. The blank continues rearwardly from the bottom wall into approximately a T-shape extension which provides outer rear and side walls and a top wall. The top wall has an extension which folds down over the front wall and meets a turned-up extension of the front edge of the bottom wall, these two extensions 'sis . 2 p .e v forming an outer front wall. Thus there is provided a double wall on all four of 'the vertical sides.

It will be seen that this construction is suitable for any rectangular shaped enclosure, irrespective of the dimensions, whether cubical or oblong. However, the rearward extensions on the inner side walls can each be only half the length of the carton since together they form the inner rear wall, and if the height of the carton exceeds half its length, then ,the length of the outer rear wall will exceed the .length of said extensions. This gives excess materialbetween the ends of said extensions and the adjacent ends of the outer side walls. Preferably the carton is so designed that this excess exists, and the excess is utilized to'form the corner reinforcements abovereferred to.

Similarly extensions on the other ends ofthe outer side walls form corner reinforcements for the other two vertical corners, .and between these two extensions is thev flap to be turned down over the front as part'of the outer front wall. These extensions may all be' of the'same length so as to give the blank straight-ends and avoid any wastage. z

The two aps which comprise the outer front wall will be glued down and, preferably, also the other overlying sections will -be glued to their contacting inner sections..y f o 3 q The invention also comprehends other features andhas further advantages, as will appear from the following particular description, reference being had to the Vaccompanying drawings in which Y i Fig.' 1 is an isometric view, partly in section, of a closed carton embodying my invention.

Fig. 2 is an isometricrview of 'a blank scored, cut' and glued and yready to be folded into a carton. f -f Fig. 3 -is an isometric view .of the blank partiallyy folded. l f Y Fig. 4fis'a similarfview ofwthe blank further folded.V f f f' Figs. 5 and6 are similar views showing.l further, progressive stages offolding. j

Fig. 7Ais a centralsectional elevation on the plane of line 1-1 of Fig. 6, on a somewhat larger scale, but in the same stage of folding as in Fig. 6.

Fig. 8 is a sectional elevation on the same plane as that of Fig. 7 but showing the carton fully closed.

Fig. 9 is a sectional elevation on the plane of line 9--9 of Fig. 8.

The blank in Fig. 2 is shown at, ready for folding and a block of wrapped cheese, partially broken away, is shown in place. The several wall elements of the blank are numbered. The bottom wall of the final carton, the one on which the cheese is placed, is numbered I. The two attached side wall members are numbered 2 and 3, the' rear extensions of the side walls which form the inside rear vertical wall, are numbered 4 and 5, while', the frontjextnsions'j.of the side Awalls which formwthe inside* front wall, are numbered I5 and I6. The frontextension of the bottom wall which forms part of the outside front wa is numbered I1. The rear extension of the` bottom wall which forms the outside rear wall is numbered` l0. This tion of the layout as shown in the drawings and "above particularly described, without departing v .from the scope of the invention as defined in 15. forms the leg of the T-extension, the head of which comprises the wall element II which constitutes the top wall of the carton, and its two side extensions 8 and 9 which constitute :thev l outer `side walls of the carton. In addition the topwall I-I hasextension I4 which cooperates with extension I1 for the outer front wall, and the side wall members 8 and 9 have foldable extensions on each end, .numbered 6 and I3 on member'8{and1 and I2 'on memberr 9, which make the corner reinforcements. The score lines on whichv folding occurs areindicated by broken lines, while the'conti'nuous lines, somei'cases double, indicate* the lines of' cut. The areas to be glued are indicated by stippling. v

Figs. 3 to 9 illustrate the successive steps in Y foldingandclosing the carton. First, as shown in Fig.A 3,?Athe sides 2 and V3 are turned up and the extensions 4 'and 5, which are severed from the, section I0, are turned in to form the rear wall, and similarly the extensions I5 and I6, which are severed from the flap extension I1, are turned in to form the frontfwall.

Next, the extensions 6 and 1, which are severed from the' sectionfl are turned up, Yasshown in Fig. 3, and then Vthe outer side wall elements 8 Vand 9 are raised, a's shown in Figmll The section I I anditsy attached sections'are then turned the following claim.

"Ilclaim" A'cubical card board carton having a height exceeding half the iront length comprising a rectangular bottom wall, two inner side Walls integral 'and coextensive in length with the side up through 90 to the position shown in Fig. 5,

bringing the wall -I'I' vertical and vlaying the extensions 5 and 1 on to the wall element I0.

Next, :the Wall Iuis' turned up about its line of contact with the bottom wall I, the two ` side walls 8 and 9 passing outside the side walls 2 and3, andrthis movement is continued through the stage shownin Figs.` Svi-arid '7 t0 the position shown in Fig'. V8 where the wall I0 is parallel to the inner rear wall E, 5 andthe wall II is parallel t0 wall I and forms the top wall of thercarton. The extensions I2 and I3 are then turned yin over the front corners and the extension flap I1 is broughtv up and theextension ap I4 is turned down, thus closing the front of the carton.`

As indicated, glue is'applied` to blank sections 6, 1, 3, 9, I0, I2, I3, I4 and I1. The backof sections 5' and 1 are thus glued Vto section LIU, and the iront of sections 6 and 1 and the inter- 'Vening portionof'section I0' are glued to sections 4 and 5. vSections 8 and 9 are glued to 4sections and 2,'respectively1,'sections I2 'and I3" are glued to sections I6 andv I5,'r es'pectively, and the front flaps mand l1 are glued dirto'sectons I-Z and edges of the bottom wall, an extension at each endof each inner side wall of a length equal to half kthe length of the frontend rear edges of the bottom wall, the Aextensions being folded in and the opposingxtensions meeting and forming complete inner front and rear walls, respectively, a bottom flap extension integral .with the iront edge of the bottom wall folded up to overlie the said inner front walland having a vertical width equal to half the length of the front edge of the bottom wall, an outer rear wall integral with the rear edge of theb'ottom wall and folded to voverlie'and proportioned to completely cover the said inner rear wall, a top ywall integralwithV the two components of therf'rontantdv rear double walls, respectively, VVand constituting vertical corner reinforcements, the inner surfaces `of the outer walls and the extensions of the outerside walls being coated withadhesiveand secured in position against the inner walls. j Y l ELMER E. ELDREDGE.

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

UNITED- STATES PATENTS Number Name l Date v 1,069,649 Rothschild v Aug. 5,'1913 1,090,559 Morrison L- Mar. 17, 1914 y1,129,061 Blnckley Feb. 23 1915 1,205,067 Wendell v NOV.y 14, 1916 Y 2,119,058 Richardson May 3l, 1938 'FOREIGN Pifl'rENTsfl Number p Country' Y Date 460,510l Great'y Britain V Jan. 28, 1937

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