US2317651A - Receptacle - Google Patents

Description

April 27, 1943;.

R. C. TALBOT RECEPTACLE Filed May 2, 1940 Patented Apr. 27, 1 943 RECEPTACLE Richard.C. Talbot,Durham,"N. 0., assignmto Wrights Automatic Tobacco Packing Machine Company, Durham,. N. 0., a corporation of North Carolina Application May 2, 1940, Serial No. 333,016

' 8 Claims. (01. 229-44) The present invention relates to improvements in receptacles, and more especially to those suitable for use in the packing of'food and other products.

One oi. the primary objects of the invention is to provide a receptacle comprising an outer carton or similar container and an inner liner composed of a material which is impervious to air and moisture and is effectively sealed to form an air and moisture proof compartment whereby the products enclosed in'the inner liner are protected and preserved in their original condition, products, for example like cereals or breakfast food which are dry, being preserved in that condition by protecting them from moisture in the atmosphere, products, for example like coffee, tea or tobacco, which are moist or damp or' subject to loss or deterioration, being preserved in their original condition by sealing them within the inner liner, and products containing constituents capable of penetrating an ordinary papercarton and soiling it or of contaminating it being confined by the inner liner which is'impervious to such constituents and therefore confines them therein, the products in any case being protected irom loss or deterioration and from contamina-' tion from the, atmosphere or other exterior influences.

A more particular object of the invention is to provide an inner liner of this character which is adaptedfor use in a carton of conventional type, thus enabling the receptacles to be filled with the same facility as ordinary cartons, as by, the usual types of carton filling' machines, and the filled receptacles being suitable for packing, shipping,

storing and handling like ordinary cartons.

Another object is to provide an improved closure for the inner liner which can be readily inserted and sealed therein to provide an eflectivelv sealed compartment for the contents of the receptacle.

A further object of the invention is to provide an inexpensive receptacle of this character having an inner linerwhich is divided into a plurality of compartments by insertion and sealing oif'a plurality of closures therein whereby a closure forming the bottom of one compartment williform 'an' air and moisture proof closure for the t of the compartment beneath it, this multiple J compartment form or receptaclebeing especially suitable for the packing ofdifierent kinds" of productsin thep different compartments, or the V packing of relatively small quantities of; thesame 1 product in the difierent compartments-and from which the product may be removed successively .stood that the invention is not restricted to the are contemplated-and are to be include the scope of the claims.

as used, the compartments being opened one at a time-by the consumer so that the rest of the compartments remain sealed against air and moisture and thus maintaining the products therein in a fresh condition until used.

The preferred embodiments of the invention are shown in the accompanying drawing and will be herein described in'detail, but it is to be underprecise details shown. as equivalent constructions (1 within In the drawing: F V

Figure 1 is a perspective view of a receptacle embodying the present invention; a v

Figure 2 is a vertical section taken longitudi nally through the receptacle as provided with a single compartment, the end closing flaps of the outer carton being unfolded; g

Figure 3 is a view similarto Fig. 2 but-showing the receptacle as provided with a'plurality of compartments;

' Figure 4 is a side elevationof the inner'liner after it has been :formed but before its insertion into the carton;

Figure 5 isanedge view of the inner liner as viewed from the right in Fig. 4; V I

Figure 6 isa perspective view on an enlarged scale, of the liner, illustrating the manner of folding one of its bottom comers;

Figure 7 is a perspective view of one oi? the closure members for the inner liner; and

Figure 8 is a detailperspectiveview of one of the corners of the closure member, illustrating the manner of folding it; t

Similar parts are designated ence characters in the-several figures.

The improved receptacle, as shown in the present instance, comprises an outer-carton I, an

inner liner! and one or more closuremembers 3.

The outer'carton' I is preferably of aconven tional type formed from heavy paper or cardboard into rectangular -tform and provided at the ends with. flaps 4' and 5 which are;; foldable inof-thecarton, thesefiaps being secured injclosed known way-as;

wardly and upon-one another-recto close the ends condition inlany' "suitable or well? The inner liner l providedaby preferably comby the same referlike coating which is suitable for heat sealing, or

- pesmat einnet ber'iis of a sizeto transparent sheet rubber such as that known as I Pliofilm which is vulcanizable by heat and pres- "sure and thus heat scalable. This liner is pref erablyformed into rectangular shape from a rectangular sheet; of the material of suitable dimenf sions by folding the sheet to bring its'ends into positions to form a pair of parallel opposed sides 6 and 1 connected at their lower ends by the intermediate portion of the sheet which forms a seamless bottom 8, and by folding the longitudi- 9 and, "land the connecting. seams II and H. The junctions of lower ends of the side and edge -walls of the. liner formoverlapping triangular fo1ds'l3and- H. The edge seams II and I2 and the triangular corner folds l3 and I4 may be lunited-to seal the lower corners of the liner by adhesive, but they are preferably heat sealed by applylngheat and pressure, which may be read- 11y accom lished with the aid of a mandrel placed within the hirty be placed within the carton in which it fits liner, after which the completed liner close y, orjthe liner may be inserted into the carton before. longitudinal seams and corner folds -are".secured, after which said seams and corner folds maybe united by adhesive or heat sealing which will secure the inner liner in place inthe "cartomwith the ends of the liner positioned atthe lines oftfoldof the carton closing flaps so erably. of'gth'e same kind of material as that cornlinen Each closure member is alspiefcrably' formed from a rectangular sheet 01th rial into a rectangular tray-like struc- "dendedges l5 and-l6 of which 7 kright angles 'to the rest of the erably sense led by applying heat and pressure tothese corner-folds. Each flanged closure memclosely fit into the inner liner with itssurroundin-a, flange in close contact with the enclosing walls of the liner.

' In using: the improved receptacle, the'in ner -liner 2 is inserted into an-end the end of the carton adjacent of the liner may beclosed by folding and suitably securing its'closing-flaps, the top'of thecarton and o! .theinner liner being open for filling.

The product-to be packedin the receptacle may be introducedzintd the inner liner in any suitable ma'nnenithe receptacle. being especially adapted. for filling by any suitable: filling machine. v

If the receptacle is to be filled with a single body of material, a single closure member 3 is inserted into the upper endvof the innerliner so that itssurrounding flange projects upwardly fromthe closure, and the latter issealed in the V V innerllner by uniting itssurrounding flangeto thecnclosingwall of preferably'by heat sealing bythe application of cheat-and pressure, the surrounding and errposed flange ofzthe closure enabling ananvil or man-"- drel to beIlnserted'therein to the liner by. adhesive or the inward; pressure, applied, whether the closure is sealed within the inner no.1 edges of the sheet toward one another and into overlapping relation to form the edge walls a closure member 3 is introduced into the inner liner-on top of the material and sealed therein by its surrounding flange, and other fractional quantities of material and closure members are successively introduced into the inner liner and sealed therein until the receptacle is filled, after which the closing flaps of the carton are folded and suitably'secured in closed condition. In employing such a fractional or multiple filling method, each part of the contents of the receptacle willrbe not only separate and distinct from the other parts thereof, but will be sealed in an air and moistureproof compartment, each closure ,member sealing the bottomof one compartment jand the top of the compartment beneath it. Consequently, if the consumer desires to use only a part at a time of the total contents of the package, the material or productcontained in thatthe liner occupies the body portion of the "carton;

1 The closure members 3 are' each composed prefeach compartment may be removed, as by puncturing or removing the closure member immediately overlying it, therest of the closure membershowever remainingintact so that the product or material contained in the rest of the seD- arate compartments remain sealed fromexterior 'air and moisture sdthat, these portions of the product or material will be preserved in their original or fresh condition.

of the carton, and

to'the bottom a By sealing the air, and moistureproof closure member or members to the surrounding walls of the air and moistureproof inner liner, effective 7 sealing of the compartment or compartments within the liner is provided, the formation of the closure member or members as described enabling such sealing to be accomplished with facility and certainty. As the inner air and moistureproof liner extends throughout the length of the carton, it provides; a complete seal for the entire contents of the receptacle and it protects the carton from soiling by fluid constituents of the products when such products are contained therein,

as such constituents are intercepted by the inner liner.

. Although both the liner and the closure member or members are preferably composed of a heat sealable material, it will be understood that either the liner alone or the closure member or members may be composed of heat sealable material. Moreover, although in using a plurality of closure members, these members have. been described as being sealed individually and-in'successlon as the different portions of the total .con-

tents of the receptacle are introduced, it will be understood that the multiple closure members may besealed simultaneously, after the receptacle has been completely filled, by applying pressure or heat a'ndpressure to the exterior of the carton, the inward pressure so applied being susreceive and sustain v compartments. mmby adhesive ol by 1 heat sealing. After fllling'and scaling in the ftained by the partition-like formation of the closure members to which the pressure would'be appliedledgewise and whichwould be supported against gdeformation by the material filling the :1 claim as myinvent ion: l

1. A receptaclecomprising acarton having a body and transversely ioldable top closing flaps, an inner liner therein composed of air and moistureproof material closed and sealed at its lower end and terminating at its upper end in the plane of the fold lines oisaid flaps, and a closure member composed of air and moistureproot material inserted into the upper end of the liner and having its surrounding edge sealed to the inside surfaces of the enclosing walls of the liner, said closing flaps being foldable directly onto said closure member.

2. A receptacle comprising a cartonhaving a rectangular body and inwardly foldable closing flaps at its upper end, an inner'liner inserted therein and coextensive with the full length of the body thereof, said liner being composed of an air and moistureproof material and closed and sealed at its lower end and terminating at its upper end in the plane oi the fold lines of said flaps, and a closure member composed of an air and moistureproof material inserted into the upper end of the liner and having a surrounding flange sealed to the inner surfaces of the enclosing walls of the liner immediately adjacent to the plane of the fold lines of said flaps.

3. A receptacle comprising a carton having transversely ioldable closing flaps at the top thereof, an inner liner therein composed of air and moistureprooi material closed and sealed at its lower end and terminating at its upper end in the plane of the fold lines of said flaps, and a closure member composed of air and moistureprooi material inserted into the upper end of the liner and having its surrounding edge heat sealed to the inside surfaces of the enclosing walls of the liner immediately adjacent to the plane of the fold lines of said closing flaps.

4. A receptacle comprising a carton having transversely foldable closing flaps at the top thereof, an innerliner inserted therein and extending the full length of the body thereof, said liner being composed of an air and moistureproof heat scalable material and closed and heat sealed at its lower end and terminating at its upper end in the plane of the fold lines of said flaps, and a closure member composed of an air and moistureprooi heat sealable material inserted into the upper end or the liner and having a surrounding flange heat sealed to the inner surfaces of the enclosing walls of the liner immediately adjacent to the plane or the fold lines of said flaps.

, transversely foldable top closing flaps, an inner.

5. A receptacle comprising a carton having transversely ioldable top closing flaps, an iimer liner therein composed of an air and moistureproof material and having'a folded bottom closure and terminating at its upper end in the plane of the fold lines of said flaps, and a plurality of members sealed within said liner at intervals in its length, one of said members closing the upper end of the liner and the other members dividing the liner into a plurality of separate sealed compartments.

6. A receptacle comprising a carton havin liner therein composed of an air and moistureproof'material and having a folded bottom closure and terminating at its upper end in the plane of the foldlines of said flaps, and a plurality of members heat sealed within said liner at intervals in its length, one of said members being sealed to the liner immediately adjacent to its upper end and the other members dividing the liner into a plurality of separate sealed compartments.

7. A receptacle comprising a carton having transversely foldable top closing flaps, an inner liner therein composed of an air and moistureproof material and having a folded and heat sealed bottom closure and terminating at its upper end in the plane of the foldlines of said flaps, and a plurality of partition lik members located at intervals within the liner and having surrounding flanges lying fiatwise against and heat sealed to the inner surfaces of the surrounding walls of the liner, one of said members being sealed to the liner immediately adjacent to the fold lines of said naps and the other members dividing the liner into a plurality of separate sealed compartments.

8. A receptacle comprising a carton having top closing flaps foldable inwardly on transverse lines at its upper end, an inner liner therein composed of air and moistureproof heat scalable material closed and heat sealed at its lower end and terminating at its upper end in the plane of the fold lines of said flaps, and a closure member composed o'f air and moistureproof heat scalable material inserted into the upper end of the liner and having its surrounding edge heat sealed to the inside surfaces of the enclosing walls of the liner immediately adjacent to the plane 01' the i'old lines of said flaps.

RICHARD C. TALBOT. I

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