US2355233A - Container - Google Patents

Description

' Aug. 8, 1944. I w, H, NEWTON i 2,355,233

CONTAINER l Filed'Feb. 19, 1945v z'sheetvs-sheet 1 fr?? fagfmr Aug 8,1944- w. H. NEWTON l I 2,355,233

CONTAINER Filed Feb. 19, 1943 2 Sheets-Sheet 2 F// f l f 7:2 .7

k 5] .52 K by Patented ug. 8, 1944 CONTAINER Walter H. Newton, Chicago, Ill., assignor to Arvey Corporation, Chicago, Ill., a corporation of ,Il

linois e e Application February 19, 1943, Serial No. 476,387

s claims. (o1. 229-24) This invention `relates to an improved container adaptedV primarily for'frozen foods.

More particularly the invention relates to the construction of a novel moisture-proof, Weatherproof and leak-proof brous container of a novel 4and reinforced construction adapted forpackaging, storage and transportation of water or oil containing materials of various nature including lliquid, semi-liquid and semie'solid materials, and more particularly frozen foods ranging-from frozen meats to fluid broken eggs.

The containerA of this invention not only provides a substitute for conventional metal containers, but provides a container which can be used with greater relative economyy in storage and transportation space than cylindrical metallic containers, and further provides a container wherein no metallic parts or surfaces come into `'contact with the :packaged food in a container of this nature.

Further advantages in the construction and use of the container of this invention reside in its 'moisture and watenproofness, in its high wet strength and in the component fibre board thereof, all of which additionally permit its use with both high and low extremes of temperature and 'and of reinforced construction, which may be .f

shipped ilat, readily assembled for use, contents readily frozen and defrosted, and which may be thereafter readily disassembled, cleaned and reused.

Other aspects and uses` willbe apparent from I l considerationA of the following specification and drawings, wherein,

` Fig.` 1 lisa perspective viewof the container of this invention. v

jFig. 2 is a section on the line 2-2 of Fig. 1.

3 is a section on the line 3-3 of Fig. 1.

I Fig. 4 is a perspective view withA portions bro'- :ken away of the body portion of the container shown in Fig. 1 prior to engagement theretoof the locking collar. e

` Fig. 5 is a perspective view of the locking collar.

' Fig. -6 is an enlarged diagrammatic cross-sectional view of one form of the iibrous material Fig. 18 is a blank development of the locking collar thereof.

of which the container of this invention is com- I tion of the container shown in Fig. 9. l

Rgeferring to Figs. l tor8 of the `drawings which show the preferred form of invention, there is illustrated a container of rectangular horizontal section and tapered vertical `section so that the ibase or bottom of the container is of lesser area than the toplor top opening thereof. The `con taine'r comprises a body portion generally indicated as I0 and a locking collar portion generally indicated 'as II. The body portion as shown by the blank of Fig. '7 comprises a center rectangular Iportion I2 which forms the base of the container, trapezoidal side Walls I3 and I4 and trapezoidal end walls 'I5 and I6.

Extending from the side walls I3 and I4 are the topclosure flaps I1 and I8 respectively, each of which is approximately equal to the width of the carton at the top opening thereof. Extending from the end walls I5 and Iii arethe flaps `I9 and 20 respectively, each of which is equal to approximately one-half ofthe lengthY of `the top opening of the container. Extending vbetween the adjacent side and end wall portions and joining them are the web pieces 2I,'22, 23 and V24, each of these web members being bisected by an oblique line of fold extending lfrom the outer corner thereof to the line of intersection of an adjacent side and end wall member, so a's to divide each webI into two triangular portions. Y It will thus be seen that the novel container of this invention is formed of a single seamless blank, wherein the side and end walls thereof vare joined to each other Iby means of web portions, the bottom, side and end walls and web members being separated from each other by means of score lines, the web portions being additionally divided by means of vbisecting score lines. These various score lines are formed on `the appropriate respective faces of the blankso as to permit the container to be folded in a manner whereby each of the web portions is doubled on its oblique line of fold, and thereafter two folded triangular web portions are folded against each of the side Walls rof the container as best illustrated in Fig. 4. It will be particularly noted from Fig. 4 that by reason of the aforesaid seamless blank formation, fluid cannot leak out of the containervat `any point below the` top opening thereof.

The locking collar II which is shown inv blank development in Fig. 8 `comprises the contiguous the bottom of the carton and brought into firm frictional wedged engagement therewith at the Y top thereof. The collar is further provided with tabs 3| and 32 extending respectively fromfthe upper edges of the side portions V and '21, andv these portions 3| and 32 may also be provided with a plurality of longitudinally extending score-A lines such as indicated at 33 so as to permitthew tabs 3| and 32 to be bent and extended with facility downwardly between the side walls of the container and their overlapped triangular flaps to thereby hold the body blank |D in locked position and to cause the collar to be in reinforced wedgedand locking engagement therewith.

It will be readily appreciated that this :reinforced construction of not only the triangular overlap web members against the sidewalls of the body,l but the additional reinforcement provided by the locking collar is of great assistance and importance inproviding a reinforced construction such as is necessary and desirable to guard against undue distension and ruptureby reason of the freezing and consequent expansion of contained materials. The over-folded triangular web portions, and particularly aided by the locking collar in wedged engagement with the body of the container permits the use of the overlapped triangular webs as a hand-hold means, that is, the container may be lifted by inserting the fingers of the hand between a side wall and the overlapped triangular web portions. This hand-hold means provision has a tendency to cause the user of the container to always store lili it properly, that is, with the base l2 in a.. downward horizontal position. It will. also be evi- .dent that in forming the body portion of the container no metallic parts `of any kind are employed, and the only metallic portions necessary,

if so used, are the staples 30 for the locking collar which are well spaced from the contents by at least three thicknesses of the material forming the body I0.

vWhen the container of this invention is used,

for example, for the packaging and shipment of broken fluid eggs, the eggs in uid condition are placed in the assembled container,` the side flaps l1 and I8 closed down which incidentally give added reinforced construction to the container by reason of their full width, the end lflaps I3 and 20 closed thereover and maintained in position bysome suitable form of sealing tape not indicated, and the contents frozenby refrigeration in conventional manner. AFrozen eggs so packed are generally sent to egg dryers, and the contents thawed, and as hereinbefore indicated the container may be reused. This re-use may bereadily accomplished by withdrawing the tabs 3| and 32 from between the side walls and over-folded triangular portions and therseparation of the collar from the body of the containenthe container thereafter cleaned and sterilized by, vfor example, washing with a chlorine nsolution,Land returned to the packer in at condition with at,- tendant economy in space and materials..

is illustrated diagrammatically inll''iglfd of the drawings, the container is composed of a multiply brous construction, Fig. 6 illustrating a construction of three plies comprising two outer surface plies 34 and 35 which are essentially of a iibrous nature and an intermediate ply 36 which is essentially of an asphalt impregnated or asphalt enveloped felted brous material, the three plies being bonded together to form a unitary composite. It will be understood that although Fig. 6 illustrates diagrammatically a 3-ply construction, 4, 5, or any other like number of plies may beused. For example, if 5 plies are used the essentially brous and the asphalt impregnated Vlayers are alternated, with the two outermost waterproof kraft or sulfate board paper of a densied'nature of high Mullen test and of good .water resistance and wet strength. This'water resistance and high wet strength quality may be amplified by the incorporation of waterproofing agents in the brous sheet or such sizing agents as rovsin, or Yother known synthetic resins and other waterproofing agents or impregnants. Likewise the laminated sheet material may be provided on one or both surfaces with other waterproofing agents, for example, the surface of the blank which is .to form the interior of the container may be provided with a wax coating, or with a coating of a non-toxic lacquer or plastic or maybe provided with laminations of wax'paper, Cellophane, cellulose acetate or the like materials as required or specied for use with specific articles to be packed within the container. It will also be understood that although not shown, liners of the nature indicated need notfnecessarily be bonded to the blank of the body of the container, but that liners having blanks of similar contour and fold as the body I0 may be employed so as to provide like liners having no line of iiuid seepage below the top opening.

By the use of my novel container as aforesaid, it will be found that the freezing time of materials contained therein does not exceed four lhours more than the freezing time for metal containers, and by use of the indicated laminatedstructure composed of a densifled sulfate board, one or more intermediate layers of which are impregnated with the bituminous waterproofing agent, that freezing may be accomplished in from 8 to 12 hours quicker than in any other heretofore known paper box of the same Mullen test,r v By reason of the hereinbefore set forth reinforced construction there is no bulging of the sides of the package either by freezing or thawing of the contents thereof, and by reason of the great wet strength thereof, the package. can be taken from the freezers and placed in water to accelerate the thawing which is of a big advantage to, for example, an egg dryer as hereinbefore indicated, and like wise'A by reason of its moisture resistant qualities thepackage Ycan be washed Vand sterilized with a chlorine solution, dried and reused. Not only does the herein construction provide a container'of great strength, but it increases the capacity of the freezing space 25 per cent over the room space required for cylindrical metal cans, and similarly this bringsa great economy over the use of such cans in refrigerator cars and other shipping and storing places. Figs. 9 to 11 illustrate a modified formv of 'container construction, all parts of which are similar to that of the construction shown in Figs. 1 to 8 and the parts thereof are indicated by like prime reference numerals, the only difference in this form of construction being in that the container is of full rectangular section in all three dimensions thereof, and has the advantage of full utilization of storage and shipment space.

I claim as my invention:

l. The combination with a nbre board container body formed of a unitary seamless blank and comprising a bottom, side walls, end walls, web members connecting the full length of adjacent edges of said walls and doubled along a diagonal line and folded against the adjacent side walls, and top closure flaps extending from said walls, of a separable slidably engageable, endless, relatively short collar embracing said body adjacent the top thereof, said collar comprising integral flaps extending from the upper edge of the sides thereof and folded downwardly to extend between the side walls of the container body and the overfolded wall connecting webs.

2. The combination with a bre board container body of tapered vertical section formed of a unitary seamless blank and comprising a bottom, side walls, end walls, web members connecting the full length of adjacent edges of said walls and doubled along a diagonal line and folded against adjacent side walls, and top clo- I sure naps extending from said walls, of a relatively short, endless, separable tapered fibre board collar in wedged embracing engagement with said body portion adjacent the top thereof and maintaining it in formed condition thereby, said collar comprising integral flaps extending from the upper edge of the sides thereof and folded downwardly to extend between the side Cil walls of the container body and their overfolded wall connecting webs and thereby holding the container body in locked position and said collar in reinforced wedged and locking engagement therewith.

3. A reinforced, leakproof, Waterproof, moisture and weather resistant paper board container adapted for the packaging 0f liquid, semi-liquid and semi-solid materials including foods and frozen food products comprising a container body portion tapering in vertical section towards the base thereof and formed of a unitary seamless blank providing a bottom, side walls, end walls, web members connecting the full length of adjacent edges of said walls and doubled along a diagonal line and folded against the adjacent side walls and top closure flaps extending from said walls, and a separable slidably engaged co1- lar in wedged embracing engagement with said body portion adjacent the top thereof and extending from approximately the upper defining edge of the container to approximately the intersection of the diagonal lines of said folded Web members and maintaining it in formed position thereby and providing hand-hold means therewith, said collar having integral flaps extending from the upper edge of the sides thereof and folded downwardly to extend between the side walls of the container body and their overfolded wall connecting Webs and thereby holding the container body in locked position and said collar in reinforced wedged and locking engagement therewith, said container being composed of stiff, dense, multi-ply laminated fibre-board of high wet strength and at least one intermediate ply thereof being impregnated with an asphaltic material.

WALTER H. NEWTON.

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