US2252462A - Package - Google Patents

Description

Aug. 12, 1941. 's R, HOWARD 2,252,462

AcKAsE Filed July 28, 1937 2 Sheets-Sheet l I l L 7L I; $16 2 16 E17 1 INVENTOR I 4 BYJ M km ATTORNEY Alig. 12, 1941. s. R. HOWARD PACKAGE Filed July 28, 1937 2 Sheets-Sheet 2 Aim-d INVENTOR QHL7RI ATTORNEY the top closing operation is -11 inclusive are detail views 'of the usual bottom fold preferably wrapped package.

PatentedAug. 12, 1941 rscxacn Stanley R.

Pneumatic Howard, Milton,

Scale Corporation,

Mass., assignor to Limited, Quincy,

Mesa, a corporation of Massachusetts Application July 28, 1937, Serial No. 156,155

4 Claims. Cl. 229-47) This invention relates to a novel package.

In general the object of the invention is to provide a novel construction of package possessing substantial strength, moisture resistance, and rigidity, which maybe economically manufactured; which presents an unusually attractive appearance and in which the top of the package is closed in a novel and highly eflicient manner, adapted to afford a maximum protection to the commodity contained within the package.

With this general object in view and such others as may hereinafter appear, the invention consists in the package hereinafter described and particularly defined in the claims at the end of this specification.

iln the drawings, illustrating the preferred embodiment of the invention,

which the present carton may be constructed and which comprises the inner section or body portion of the completed carton; Fig. 2 wrapper of metal foil and paper; Fig. 3 is a perof the completed carton; Fig. 4 is a section onthe line 4-14 of Fig. 3; Fig. 5 is a perspective detail of the top of the carton before performed; Figs. 6 to showing the various steps taken in producing the novel top fold of the present package and Fig. 12 is a detail view employed in the production of the present package.-

In the drawings, the present package comprises a container formed from a carton blank comprising a body portion provided with top and bottom flaps projecting therefrom. The bottom flaps of the carton may be closed and sealed in any usual/or preferred manner. Provision is made for enclosing the carton within a novel wrapper, adapted to afford maximum protection for the packaged commodity, comprising a composi sheet formed by laminating a v a paper sheet and the wrapper is disposed with the metal foil forming the outer surface of the The paper sheet of the laminated metal foil-paper wrapper may and preferably will be affixed to the body portion of the carton and the extended lower end of the wrapper folded and sealed in any usual or preferred manner upon the previouslyfolded bottom flaps The upper portion of the wrapis a composite per is preferably affixed to the extended side flaps of the carton and the said upper portion andeextended side flaps are folded and sealed as one piece to form a top closure for the carton in a novel and superior manner thus eliminating the separate operation of first closing Fig. 1 is a blank from I portion of the wrapperupon the surface and highly efiicient Referring now to the drawing which as above corners It.

the carton flaps. The top closing operation is preferably performed by elongating the upper to bring togetherrthe two half sections of such upper portion and then folding and overfolding said half sections down of the wrapper carton. The triangular shaped end tabs formed as a result of this operation are then folded over and adhesively or otherwise secured to the previously folded down portion of the upper end of the wrapper as will be described, forming a tight top closure for the carton.

stated illustrates the preferred embodiment of the invention, Iii represents a carton blank preferably composed of light, flexible board stock from which the present wrapped package may be produced. The carton blank comprises a body portion I! having top flaps l3, l4 and bottom flaps l6, II for forming the closures of the top and bottom of the carton. Provision is made for scoring the lines I! connecting the flaps l3, M and l6, H with the body portion l2 in order to provide sharply defined corners at the top and bottom of the carton'forr'ned from the carton blank. The body portion of, the carton is, however, preserved otherwise free fromscore lines so that when the blank is folded around the usual forming block in producing the carton, the vertical corners IQ of the carton are caused to assume a definitely rounded shape and when wrapped as will be described, this rounded shape imparts to the finished package a characteristic and highly attractive appearance.

- In the manufacture of the package the carton may in general be formed and filled in accordance with the usual practice and it is preferred to wrap the carton blank about the usual forming block of a carton forming machine and to fold and seal the bottom flaps of the carton in the usual manner. It will be noted that the carton blank i0 is cut in such'a manner that when the carton is formed, the side seam or overlapping edges i9, 2!, see Fig. 4, will be located on one of the carton, away from the comer-as is the usual practice-in order that the overlapping portions will not interfere with the forming of the rounded shape on the In this condition the partially formed carton may then be wrapped and in accordance with the present invention, the wrapper 20 comprises a composite metal foil and paper sheet. The metal foil and paper sheet may be laminated to form the composite wrapper 20 in any usual or preferred manner. The composite securing the wrapper to the extended side flaps i 3, l4 and also to the body portion of the partially formed carton by a body of adhesive 22 which is arranged to extend at least about the mouth of the body portion of the carton in order to provide a tight closure between the the body portion at the upper portion of the carton the material is prevented from entering between the wrapper and the body portion of the carton. The overlapping edges 23, 25, see Fig. 4, forming the side seam of the wrapper is likewise arranged to extend along one of the narrow side panels, instead of at the corner l8. In some instances it may be desirable to adhesively aflix the wrapper to the entire surface of the body portion of the carton. The lower portion 24 of the 4 the package is wrapper is preferably arranged to extend below the body portion of the carton thus supported upon the block and is then folded and sealed to form a wrapped closure for the previously closed and sealed bottom-flaps [6, ll of the carton and any usual or preferred method may be employed in folding the bottom portion of the wrapper and of adhesively affixing the overlapped portions thereof. It will be noted that the bottom flaps l6, l1 are cut at a slight angle so that when the flaps are folded over to form the bottom of the carton, the full thickness of the flaps will not extend out to the edge of theafl'ords a relief along carton. This construction the bottom edges of the carton over which the extended end of the wrapper is folded to produce a softer or more rounded corner fold in accordance with the general design of the package.

the extended wrapper 2t and are folded and sealed as one piece to provide a the top flaps l3, ll

as shown in Fig. 8, and the wrapper is folded over and the triangular flaps l3 as shown in Figs. 6 and 7. The folding tab 30 is then folded centrally about a line 36 and the folded portions of the tab are then folded down upon the top of the carton as illustrated in Figs. 9 and 10, thereafter the two projecting triangular flap portions 40 of the wrapper, together with the portions of the folded tab 30 which extend beyond the carton, are folded over and adhesively affixed to the previously folded down top of the wrapper, producing a package in which the top of closed in a most efficient and tight manner. I

In practice it was found to be preferable to cut the triangular flaps l3 at an angle slightly greater than the natural angle formed by the folded wrapper, in order to provide clearance to flaps, to relieve the tension at the edges thus eliminating the sharp comer effect when the triangular portions 40 are folded over.

As a modified form of the above described top closure it may be preferred to eliminate the triangular carton flaps l3 to th end that a carton with less bulk may be produced without detracting from the appearance and general utility of the carton.

In packaging van'ous commodities, and particularly in packaging coffee, it is desirable that the and flavors in the packaged commodity. Accordingly the metal foil of the wrapper minimizes the escape of the flavor from the repellent layer to the commodity by the material and flaps of the carton.

While the preferred embodiment of the invention has been herein illustrated and described, it

described the invention, what is upon itself and down upon one of the inwardly folded top flaps and upon the outwardly project-n ing triangular shaped top flaps, and thereafter folding the wrapped outwardly projecting tsp flaps and the projecting portions of said-folded tab over upon the top surface of the carton and affixing the, same thereto.

2. Asa new article of manufacture, a package comprising a carton having its bottom closed and containing a commodity, and provided at its upper end with a top flap integral with each side of the carton, two opposed top flaps being triangular in shape, a wrapping sheet adhesively affixed to the body of the carton having portions folded and secured to the bottom thereof; and a closure for the top of the carton produced by folding two opposed top flaps inwardlyand the two triangular shaped top flaps outwardly to form two upstanding half sections of the wrapper, folding the half sections of the wrapper upon the inwardly folded top flaps and the outwardly folded top flaps to bring the upstanding half sections of the wrapper together whereby to form an elongated and upstanding folding tab extending across the mouth of the package and across the outwardly extending top flaps, then folding said folding tab upon itself and down upon one of the inwardly folded top flaps and upon the outwardly projecting triangular shaped top flaps,

, and thereafter folding the wrapped outwardly projecting top flaps and the projecting portions of said folded tab over upon the top surface of the carton and affixing the same thereto.

3. As a new article of manufacture, a package comprising a carton having its bottom closed and containing a commodity, and provided at its upper end with a top flap integral with each side of the carton, two opposed top flaps being triangular in shape, a wrapping sheet adhesively affixed to the body of the carton having portions folded and secured to the bottom thereof, and a closure for the top of the carton produced by folding two opposed top flaps inwardly and the two triangular shaped top flaps outwardly to form two upstanding half sections of the wrapper, folding the half sections of the wrapper upon the inwardly folded top flaps and the outwardly folded top flaps to bring the upstanding half sections of the wrapper together whereby to form an elongated and upstanding folding tab extending across the mouth of the package and across the outwardly extending top flaps, then folding said folding tab down upon on of the inwardly folded top flaps and upon the outwardly projecting triangular shaped top flaps, and thereafter folding the wrapped outwardly projecting top flaps and the projecting portions of said folded tab over upon the top surface of the carton and amxing the same thereto.

4. As a new article of manufacture, a package I comprising a carton of light flexible board stock having a body portion provided with top and bottom flaps, two of the opposed top flaps being substantially triangular in shape, a commodity within the carton, th body portion of the carton having its vertical portions rounded and unscored, a wrapper for the carton adhesively affixed to the body portion and to the top flaps, and a top closure for th carton formed by folding inwardly two of the top flaps and the portions of the wrapper adhering thereto and folding outwardly the triangular top flaps and the portions of the wrapper adhering thereto to form upstanding portions, bringing together the upstanding portions of the wrapper to form an elongated folding tab extending across the top of the carton and across said outwardly extended triangular flaps, and then folding down the folding tab onto the top of the carton and folding inwardly the triangular top flaps with the portions of the wrapper adhering thereto and securing the same to the top of the carton.

STANLEY R. HOWARD.

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