US2188732A - Shipping carton - Google Patents

Description

Jan. 30, 1940. cqw. VOGT SHIPPING CARTON 2 She et s-Sheet I Original Filed Jan. 28, 1937 INVENTOR Jan. 30, 1940. i c w VQGT I 2,188,732

SHIPPING CARTON INVENTOR Clarence W V5 5 BY MWW'Z Q ATTORNEYS Y Patented Jan. 30, 1940 UNITED STATES PATENT ori-"ics 2,188,732. snlrrmo CARTON Application January 28, 1937, Serial No. 122,842 I Renewed September 19, 1939 8 Claims.

The present invention relates to shipping cartons especially of the type adapted to contain flexible-walled packages.

Among the objects of the present invention is to provide a new and improved carton of the multiple cell type, which can be inexpensively manufactured, which can be easily and effectively folded from collapsed into package-receiving shipping condition, which is strong enough to effectively withstand ordinary handling during shipping, which is so constructed as to permit the ready insertion of empty flexible-walled containers through either end of said carton and into their respective cells for container-filling operations, which may be used to move said containers successively into filling position, and which permits the ready removal of the filled containers for dispensing from the latter.

Various other objects, features and advantages will be made apparent from the following particular description and from an inspection of the accompanying drawings. In these drawings:

Fig. 1 is a top plan view of the shipping carton with the bottom thereof closed,

Fig. 2 is a front elevation of the carton shown in Fig. 1 with a part broken away,

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

Fig. 4 is a perspective of the carton in open position with the empty flexible-walled containers disposed in their respective cells, and in position to be filled,

Fig. 5 is a fragmentary perspective of the carton in shipping condition with the flexiblewalled containers filled,

Fig. 6 is a section taken on line 6-6 of Fig. 5 but on an enlarged scale,

Fig. 7 is a perspective view of a form of flexible liquid container which may be stored or transported in the carton of the present invention,

Fig. 8 is a section taken on line 8-3 of Fig. 7 but showing the container partially collapsed,

and

Fig. 9 is a section taken along the bottomseam of the container along the line 9-9 of In the specific forms illustrated the carton II is constructed from a blank which is made of comparatively rigid material such as doublefaced corrugated cardboard, and which has a series of longitudinally extending score or crease lines along whichthe blank is folded to form t a rectangular tube or casing having a. pair of comparatively wide opposed walls ii and i2, and a pair of opposed narrower walls 93. Opposite edges of this blank may be secured together by any suitable means, as for instance, a tape l4 extending along one corner of the tubular carton.

The top of the carton preferably has no closure, while the bottom thereof is provided with a closure flap i6 extending from, and foldable along the lower edge of the wall H, and having at its outer end a flap section I! foldable outwardly with respect to the carton along a score or crease line I3. In closure position the main body of the flap it extends obliquely and upwhen the latter is in closed position so that no gaps are formed along the lower corners of the carton, thereby eliminating the pinching of thefiexible-walled packages at these comers.

The carton ill is divided into a series of cells 22, four of such cells being shown. The partitions defining the carton cells 22 are easily and inexpensively formed, by means of a partition member 23 which is made of suitable sheet material such as double-faced corrugated cardboard and which is folded into a series of rectangular U-shaped alternately reversed bends. In the specific form shown this member 23 comprises two adjacent bends 24 and 25 in reverse relationship having extensions 26 at their outer ends lapped against the carton walls II E and I2 to form four cells of similar size and substantially square cross-section, and is secured in position in the carton in by adhesive or any suitable means throughout the entire areas of the transverse walls of the bends and the terminal end portions 26. 'Ihe'bottom of this partition member 23 preferably extends substantially at right-angles to the walls Ii and I2, as shown in Fig. 3, to form triangular openings 21 of substantial area between the bottoms of adjacent cells 22, thereby preventing the pinching of the flexible-walled packages at these sections.

The partition member 23 serves not only to divide the carton W into a series of cells, but

also serves to impart rigidity and strength to the carton.

Although the carton l has a variety of uses,

it is particularly adapted to contain flexiblewalled lubricant containers which may be drained into suitable receivers, such as crank cases of automobiles. In Figs. 7 to 9 is shown a form of flexible-walled oil bag or container 30 which may be conveniently and effectively packed in the carton I0, and which is more fully disclosed and claimed in a copending application, but it must be understood that any other type of flexible-walled container may be used for the purpose of the present invention. This bag 30 is formed primarily of impervious flexible sheet material which may be sealed by heat and pressure, or by the use of adhesives or solvents. For instance, it may be material sold under the name of Pliofilm, which is made from a chlorinated rubbercompound, and which is thermoplastic and readily vulcanized or sealed at a temperature of approximately 115 C., so that overlapping sections thereof may be sealed together by the application of heat and pressure.

The bag 30 is formed of a sheet 3| of Pliofilm or other material referred to, having its side sections 32 heat-sealed to the sides of a narrower sheet of Pliofilm 33 along its entire length to form sheet 33 to form a laminated wall therewith, is

a reenforclng sheet 35 made of paper or other flexible sheet material, which will not be injuri-. ously affected by the application of suflicient heat and pressure to effect sealing, fusing or vulcaniz- -ing of the Pliofilm. In order that the corners of the bag 30 along the side edges of the sheet 35 be strong when the bag is filled, said sheet extends beyond the side edges of the Pliofilm sheet 33 to form marginal extensions 36, and portions of the side sections 32 of the Pliofilm sheet 3| project outwardly beyond the side edges of the sheet 33, and are directly glued or cemented to said marginal extensions.

The bottom of the bag 30 is closed by a seam I 40 extending across the entire width of the bag as shown in Figs. 7 and 9 and formed by heatsealing the adjacent margins of Pliofilm together. At the top, the empty container is provided with side seals 4| in which the adjacent margins are heat-sealed together, the portion of the bag between said side seals forming a filling opening which may be permanently closed after the bag is' filled by heat-sealing the opposed Pliofilm linings of said opening together.

Since the sealing across the bottom of the collapsed tube is effected by a single heat-sealing operation, non-uniformity in the number of overlapping Pliofilms .across the width of the collapsed tube might under some circumstances cause the overheating of the center portion of.

the tube, so that the overheated section of the 'Pliofilm sheet 3| along said center portion might stick to the platen member forming part of the sealing apparatus. In order to avoid this condition, a' paper sheet 42 may be cemented or otherwise secured to the Pliofilm sheet 3| across The sheet 3| is tucked inwardly from tively protected against injury during storage.

to provide for the change in volume of 011' due to changes in the temperature thereof.

' The carton Ill-without the'partition member 23 may be shipped in fiat, knocked-down condition to a remote station where the bags 30 are to be filled. The partition member may be previously secured in 'position and collapsed with the casing, or may be shipped separately. At this station the carton is set up in tubular form as shown in Fig. 4, and the partitionmember 23, if 10 shipped separately, is secured in position to divide the carton into the four rectangular cells 22. The set-up carton with its bottom flaps in open position are then passed underneath a filling apparatus. The empty collapsed bags areinserted in 16 the individual cells 22, preferably from the lower end of the carton, with the upper ends thereof projecting beyond the upper end of the carton to render said bags readily accessible to the filling apparatus. The bags 39 are long enough so that 50 the filling mechanism. Cooperating with this 30 filling mechanism is a series of bag-supporting fingers which grasp the upper end of the b while the bags are being filled. Although the carton l0 in Fig; 4 is shown in an upright position, said carton is preferably inclined at an angle of approximately 45 during filling operation so as to reduce the amount of vertical space occupied by the carton during said operation and to minimize the strain on the bag-grasping fingers of the filling apparatus during said operation. 40'

After the bags have been filled, a portion of the air may be exhausted from the head space above the liquid level, and the tops of the bags are hermetically heat-sealed between the side seals 4| by a sealing device constituting a heating memher adapted to act on one panel of the bag and cooperating with a platen member on the opposite panel of said bag, and preferably having a resilient face.

After the bags have been filled the side flaps 5|) 2| are folded inwardly and the bottom fia'p I6 is folded across the bottom of the carton in the position shown in Fig. 3. While in this closed position the staples 20 are applied at spaced sections to permanently secure the flap IS in closed position. As the main portion of the bottom I6 is above the lower edge of the wall I2 and fiap H, a certain resiliency is provided and there is less chance of rupturing the bags by dropping the carton or by other shocks or blows. After this 00 operation the upper ends of the filled bags are' folded or will settle within the confines of thecarton as shown in Fig. 5 to form a strong, compact, shippable unit in which these bags are effecand transportation. Furthermore the construction of the carton is such that the staples 20 do not come in contact with thebags and therefore cannot injure said bags.

Thecross-section of each carton cell is such inches will be satisfactory and will create a very low initial drag or surface friction when said bag is withdrawn from the carton.

' The complete unit as shown in Fig. 5. is particularly adapted to be used in the ordinary automobile service station since the oil bags are fully protected in the carton until they are dispensed, and may be easily pulled out of the carton when it is desired to drain the contents of said bags into the crank case of an automobile.

When the carton is intended to hold only two bags the partition member may be dispensed with and the two bags made to mutually support each other in the carton.

Having thus described my invention, what I claim asnew and desire tosecure by Letters Patent is:

1. A cartonhaving a pair of similar opposed substantially vertical walls with their lower ends in substantially the same plane at right-angles to the planes of said walls, said carton having a bottom integral with one of said walls and extending obliquely from the lower end thereof to a point above the lower end of the opposed wall and secured to the latter.

2. A carton having a pair of similar opposed substantially vertical walls with their lower ends in substantially the same plane at right-angles to the planes of said walls, said carton having a bottom integral with one of said walls and extending obliquely from the lower end thereof to a point above the lower end of the opposed wall and provided with a depending flap having its lower edge substantially flush with the lower edge of the last-mentioned wall.

3. A carton having a pair of similar opposed,

substantially parallel and substantially vertical walls with their lower edges in the same plane, whereby the carton may stand erect resting on said edges, and a bottom integral with one of said walls at the lower edge of the latter and extending upwardly across the carton and secured to the opposite wall at a point above the lower edge of the latter.

4. A carton having an inclined bottom wall and a plurality of partitions, said partitions terminating above the lower edge of said bottom wall, whereby the portions between said partitions are in open communication with each other at their lower ends.

5. A carton substantially rectangular in crosssection and having a pair of opposed substantially parallel walls having their lower edges in the same plane at right-angles to the planes of said walls, and a second pair of opposed walls having their lower edges at an angle to said plane, and a'bottom wall integral with one of said firstmentioned pair of walls and extending upwardly and inwardly to the other of said first-mentioned pair and substantially following the inclined lower edges of the walls of the second-mentioned pair.

6. A carton substantially rectangular in crosssection and having a pair of opposed substan: tially parallel walls having their lower edges in the same plane at right-angles to the planes of saidwalls and a second pair of opposed walls having their lower edges at an angle to said plane, and a bottom wall'integral with one of said first-mentioned pair of walls and extending upwardly and inwardly to the other of said firstmentioned pair and substantially following the inclined lower edges of the walls of the secondmentioned pair, said second-mentioned pair of walls having flaps at their lower edges superposed on said bottom wall.

'7. A carton substantially rectangular in crosssection and having a pair of opposed substantially parallel walls having their lower edges in the same plane at right-angles to the planes of said walls and a second pair of opposed walls having their lower edges at an angle to said plane, a bottom wall integral with one of said first-mentioned pair of walls and extending upwardly and inwardly to the other of said first-mentioned pair and substantially following the inclined lower edges of the walls of the second-mentioned pair, and a plurality of partitions disposed between and parallel to said second pair of walls, and having their lower edges terminating above the lower edge of said bottom wall.

8. A carton having an inclined bottom wall and a plurality of transverse partitions, each partition having one side edge terminating closely adjacent to the upper edge of said bottom wall, and the opposite side edge terminating above the lower edge of said bottom wall, whereby the nompartments between said partitions are in open communication with each other at their lower ends. l

. CLARENCE W. VOG'I'.

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