US2898027A - Container for fluent materials - Google Patents

Description

Aug. 4, 1959 r w. R. SCHOLLE 2,898,027

CONTAINER FOR FLUENT MATERIALS Filed Dec. 4, 1956 I 2 Sheets-Sheet 1 72107: William R S'cfioZZe Aug. 4, 1959 w. R. SCHOLLE 2,898,027

CONTAINER FOR FLUENT MATERIALS Filed Dec. 4, 1956 2 Sheets-Sheet 2' Uniwd W5 Pa i9 CONTAINER FOR FLUENT MATERIALS William R. Scholle, Skokie, Ill., assignor to Scholle Chemica l Corporation, Northlake, IlL, a corporation of Illinois Application December 4, 1956, Serial No. 626,203

a 2 Claims. (Cl. 229-14) This invention relates to a dispensing container for fluent materials such as liquids and powders, and more particularly to economical but adequate means for packing, storing, and dispensing liquid materials such as acids and alkalies, one particular example of which is electrolyte for storage batteries.

Another object of the present invention is to provide an improved package comprising a rigid outer container body and a flexible inner container bag formed of thin, flexible, substantially nonelastic plastic material, such as polyethylene, cellulose acetate, vinyls and the like, which are relatively inert with respect to the materials being packaged therein and of highly liquidproof character.

It is a particular object of the present invention to provide the aforesaid inner container bag of plural ply construction, that is to say, in the form of at least two separately formed bags, one disposed Within the other, and separated from each other throughout except at their upper ends where they are jointly sealed together in a unitary line of fusion, whereby any leakage from the innermost flexible container bag, as a result of any imperfections therein, would first flow or leak into the outer or enveloping plastic bag before reaching the relatively rigid outermost container body.

Further objects relate to the method and means for dispensing the fluent materials by providing a dispensing opening at one end of the container assembly, whereby ready access to the contents may be had and the contents conveniently dispensed when desired.

Further objects and advantages relate to the details of construction, arrangement of parts and the economies thereof which will be apparent from a consideration of the following specification and accompanying drawings, wherein:

Fig. 1 is a diagrammatic elevational view of a dual ply liner bag being filled with liquid materials.

Fig. 2 is a side elevational view of a filled and completely sealed dual ply liner bag in accordance with the present invention.

Fig. 3 is a section on the line 3--3 of Fig. 2.

Fig. 4 is a perspective view of a rectangular paperboard outer container body open at the top and having disposed therein the filled and sealed dual ply liner bag shown in Figs. 2 and 3.

Fig. 5 is a view similar to that of Fig. 4 showing a portion of the top in closed position.

Fig. 6 is a view similar to that of Fig. 4 with all the top flaps closed down.

Fig. 7 is a section on the line 7-7 of Fig. 6.

Fig. 8 is a perspective view of the assembly with a top portion lifted up while remaining hinged to the assembly of the top, showing the corner of the dual liner bag lifted out and ready to be severed by a pair of scissors.

Fig. 9 is a fragmentary view showing the open assembly of Fig. 8 with a corner of the dual liner bag severed and the whole inverted to provide a pouring spout in dispensing position.

2,898,027 Patented Aug. 4, 1959 Referring to the drawings, the reference numeral 10 indicates an inner liner bag which, prior to filling, may be formed of tubular material or from sheet material endwise joined to tubular form by means of a longitudinal seal and suitably composed of polyethylene of four mils or other thickness. This tubular material is first sealed at the bottom in a liquid-tight seal line 11 extending transversely across the tube, which line of seal may be formed by thermal or electronic sealing means to fuse the opposed faces of the resultant flattened tube together. This bag 10 is then disposed within a similar bag 12 of slightly larger dimension, having a like transverse seal or line of fusion 13 at the bottom.

The dual bag is then filled with desired material, such as the previously indicated electrolyte acid for storage batteries from a source 14, while desirably disposed within a supporting box or the like fixture. Thereafter the bags 10 and 11 are jointly sealed adjacent their upper ends' in a single transverse line of fusion 15 to form a liquid-tight seal thereat, the assembly assuming a pillowlike form as is evident from the section of Fig. 3. It will here be noted that the only portions at which the bags 10 and 12 are secured together are at this upper common or joint four-ply line of seal 15, the bags remaining spaced from each other throughout their remaining surfaces whereby the outer bag 12 may receive liquid leakage from the inner liner bag 10 if such leakage should accidentally occur.

'After being this filled and sealed, the dual ply liner bag, generally designated as 17, is then disposed within a relatively rigid tubular or angular outer container, which may be solely of fiberboard or metal edge reinforced fiberboard and of flat top and bottom, providing units adapted to be stacked, packed in plural units in shipping in boxes, and stored and conveniently handled. The relatively rigid outer containers are, of course, adapted to be subsequently opened to provide access to the dual liner bag whereby the dual liner bag may be opened and its contents poured out for use.

Thus, as illustrated in Fig. 4, the filled and sealed pillow-shaped flexible plastic material dual liner bag 17 is disposed for the purpose of illustration within a rectangular paperboard container body, generally indicated as 16, the general dimension of the outer container being such as to be substantially filled by the dual-ply filled liner bag 17, with its upper sealed edge portion 18 extending generally parallel to the longer defining sides 19 of the body 16.

Due to the flexible nature of the bag, and by reason of the weight of its contents, the filled bag substantially assumes the shape of the outer container, and as previously explained, the dual nature of the bag provides insurance against any imperfection in the inner liner bag 10 or in the sealing thereof which, in the absence of the outer bag 12, might leak into the paperboard container body 16 and cause damage to it or ultimate leakage therethrough.

The container body 16 illustrated in Fig. 4 and in the subsequent figures is composed of a blank cut and scored to define a pair of opposed side walls 19, 19, a pair of relatively narrower end walls 20, 20, and a relatively narrow sealing flap 21 extending from one of the side walls 19 and outwardly overlying and adhesively secured to one end wall 20, as illustrated in the dotted position in Fig. 7. This outward sealing of flap 20 provides four complete and unbroken interior faces and thereby avoids any side wall areas which might unduly engage or pinch the plastic bag assembly 17.

The top and bottom flaps extending from the aforesaid side end walls -also close down in a similar manner to provide complete, unbroken surfaces for the same reasons indicated with respect to the side walls. Thus, ex-

3 tending from the side Walls 19, 19 are the flaps 22, 22 at their upper edges, with similar flaps at their bottom edges. Extending from the relatively narrow end flaps 2 atthe upp r ed re the p 23 h s m lar flaps at'the bottom. In each case, and at the top and-bottom, one of the longer flaps 22 is first closed down,gas shown in Fig. 5, following which the short flaps 23, 23 are closed down and secured to the firstflap 22 by means of adhesive, following which the remaining flap 22 is then closed down over the two flaps 23, 23 and secured thereto by means of adhesive, the samc'sequence being followed at the bottom.

The carton 16 is further provided with lines of perforation adjacent its top, and top score lines, to provide alift-upcover portion hinged to the remainder of 'the top, whereby an upper portion of the dual ply liner bag t17 maybe lifted up through the resultant opening as shown in Fig. 8, a corner snipped off, as by means of a pair of scissors 24, to provide the resulting pouring spout 25 so that when the assembly is inverted as in Fig. 9 the fluent contents may be poured out for use while the dual bag 17 is still bodily retained and held by the outer body 16.

Thus, one end wall 20 and the two side walls 19, 19 are formed with contiguous lines of perforations 26 and 27, respectively, adjacent the top of the carton. The inner and- outer top flaps 22, 22 are each medially formed with a transverse score 'line extending'between the terminal edges of the flaps 23, 23 so that by breaking the lines of perforations 26 and 27 a top portion of the container 16 may be separated and liftedon the score lines 28, as best shown in Fig. 8, whereupon one .corner of the dual ply liner 'bag 17 may be lifted outwardly of the carton as illustrated, and one corner snipped ofi to provide the pouring spout 25 previously indicated.

AlthoughI have described and illustrated the preferred embodiments of my invention, it will be understood that various changes may be made in the detailsthereof without departing from its scope as set forth in the appended claims.

I claim:

1. A package of fluent materials comprising a relatively rigid flat-bottomed normally sealed outer container body and a liner bag of flexible plastic material containing liquid enclosed within a second otherwise empty slightly larger bag of like flexible material, said flexible bags being disposed within and substantially filling said relatively rigid outer body, said flexible bags being jointly sealed in a unitary transverse line of fusion adjacent their upper marginal edges only to form completely sealed enclosures and remaining free from each other throughout the remainder. of their surface areas, a top corner portion of said outer container body being perforated and scored for severance and hinged elevation respectively whereby to expose and provide access to an upper corner portion of said liner bags while retaining them bodily therein upon inversion of the assembly.

2. The construction of claim 1 wherein said liner bag and said larger bag comprise a dual-thickness liner bag ofsubstantially inelastic, thermoplastic, flexible material.

References Cited in the file of this patent UNITED STATES PATENTS 2,321,655 Carr June 15, 1943 2,339,156 Davis Jan. 11, 1944 2,430,995 Roos Nov. 18, 1947 2,446,308 Smith Aug. 3, 1948 2,549,039 Adams Apr. 17, 1951 2,619,801 Evans Dec. 2, 1952 FOREIGN PATENTS 1,067,272 France Nov. 28, 1952 697,723 Great Britain Sept. 30, 195.3

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