US1920653A

US1920653A - Carton spout

Info

Publication number: US1920653A
Application number: US444336A
Authority: US
Inventors: William B Mclaughlin
Original assignee: Fibreboard Products Inc
Current assignee: Fibreboard Products Inc
Priority date: 1930-04-14
Filing date: 1930-04-14
Publication date: 1933-08-01
Anticipated expiration: 1950-08-01

Description

1933- w. B. MCLAUGHLIN 1,920,653

CARTON SPOUT Filed April 14, 1950 I 52 3} J4 14 .52 f a] WILL, 1AM .8. Mc LAUGHL/N Patented Aug. 1, 1933 CARTON SPOUT William B. McLaughlin, San Francisco, Calif., assignor, by direct and mesne assignments, to Fibrcboard Products Inc., San Francisco, Calif., a Corporation of Delaware Application April 14, 1930. Serial No. 444,336

3 Claims.

This invention relates to an improved carton spout, and has for one of its principal objects, means for forming a spout in the end of a cardboard or other carton, the spout to be of the same material as the carton and to remain an integral part of the carton or container as long as it is in use.

One of the important objects of this invention is to provide a carton spout integral with the material thereof and which can be incorporated into the ordinary carton blank now in use without any additions thereto or extensions thereof, and without'changing in any way the outlines of the original blank or the machines for r cutting the same.

Still another and further important object of the invention is to provide in a carton an integral spout which can be incorporated thereinto at a very small expenditure of additional time and labor, and with comparatively simple extra equipment, and which furthermore enables the cartons to be shipped to the user in a fiat or knocked-down condition, after which they can be assembled for packing by means of the ordinary operations now in use.

Other and further important objects of the invention will be apparent from the disclosures in the accompanying drawing and following specification.

The invention, in a preferred form, is illustrated in the drawing and hereinafter more fully described.

In the drawings:

Figure 1 is a perspective view of the open top end of the carton or the like with the improved integral spout of this invention forming part thereof.

Figure 2 is a plan view of the blank from which the carton is formed showing details of the scored, perforated and offset portions.

Figure 3 is an exaggerated sectional view taken through the top of the carton showing portions removed from the two outer flaps to form the opening throughwhich the

spout member numerals

14, 16, 18, and 20, as best shown in Figures 1 and 2. It will be noted that the spout proper is formed of

wing portions

22 and 24 bent upwardly from a central portion 26, all of which constitute a unitary structure, the

portions

22 and 24 being bent at right angles to the portion 26, this bending being facilitated by means of scored lines as best shown at 28 in'Figure 2.

In order that the spout may work properly through the combined thicknesses of the two

covering flaps

18 and 20, another scored line 30 is formed in the member 26 thereof, this scored line being parallel to but offset from the original bending line of the spout 32 as best shown in Figures 2 and .4.

In order that the spout element may be easily separated from the remainder of the flap 14, it is outlined by a heavily scored or perforated line or cut through as best illustrated at 34 in Figure 2, this line or cut beginning at one end of the lighter scored line 32 and extending around approximately three-fourths of the outline of the spout. f

To make the spout member easily accessible from the ,outside of the carton after-the same has been sealed, the covering flaps '18 and 20 are each provided with

openings

38 and 40 respectively, these openings being merely outlined by scored, cut or perforated lines as best indicated in Figure 2, facilitating removal of the portions inside the lines when it is desired to open the carton and place the spout into operation.

Each of these

openings

38 and 40 is preferably provided with an offset lip or extension enabling the ready insertion of a knife blade, finger nail or the like, and eliminating damaging of adjacent parts.

Preferably, the scores or perforations outlining these openings are graduated, those adjacent the top being very heavily scored as best shown at 44 in Figure 2, and those adjacent the lower portions of the openings being simply perforated and not so heavily scored as illustrated at 46.

When the portions are removed from the flaps l8 and 20, leaving

openings

38 and 40 respectively, the spout 2224-26 can then be readily pulled out into operating position as shown in Figures 4 and 5, and when the desired amount of material has been removed from the carton, the spout can be readily pushed inwardly into closed position, thereby again sealing the carton while at the same time rendering it readily available for future use.

In order to avoid the undesirable sticking of the surface of the spout element 22 24'26 to the lower face of the adjacent flap 18 when the same are glued together in the process of completing the carton, the corresponding adjacent portion of the said flap 18 is slightly offset as shown by the outlines thereof at in Figure 2, and as shown in exaggerated sectional detail in Figure 3.

The glue is illustrated in Figure 3 at 52, and it will be seen that although the

flaps

14 and 18 are securely sealed together by this glue, there is none of the glue between the spout element and the ofi'set portion 50, and therefore, no undesirable sticking together of these portions results. This undesirable sticking can be further prevent ed by coating the upper face of the spout element 22-24--26 with a heavy coating of ink as illustrated at 54 in Figures 1, 3, and 5. Ordinary glue will not stick on the glazed surface produced by the ink.

Although the offset portion of the flap 18 results in a consequent upward extension on the,

outer face thereof, a suitable joining of the

flaps

18 and 20 will be accomplished by the glue 52 as best shown in Figure 3, as there is sufilcient contacting surface between these portions to provide a satisfactory union, and it will be evident that considerable glue will extend over all the adjacent surface of these two flaps regardless of the oifset area which, furthermore, is not sufiicient to produce any noticeable bulge or distortion of the package.

It will be evident that hereinis provided an integral spout for cardboard containers or the like which answers the requirements of manufacturers and also of users in that it necessitates no additional material in the way of extra flaps on the carton blank nor does it necessitate the use of any extra elements such as are required in metallic spouts. Further, it does not interfere in any way with the secure sealing of the package, and

lastly, it is readily accessible to the ultimate con- I am aware that many changes may be made and numerous details of construction varied throughout a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon otherwise than as necessitated by the prior art.

I claim as my invention: Y

1. A carton comprising a flap having a portion thereof foldable to provide a spout, and a second fiap overlying the first flap and having a portion separable therefrom so that the same may be removed independently of the spout prior to folding out the spout portion, the portion removed from the second flap providing an aperture thru which the spout may extend, and a third flap overlying the second flap and having a portion separable therefrom, the portion removed from the third flap providing an aperture in register with the aperture of the second flapa 2. A carton comprising a flap having a portion thereof foldable to provide a spout, and a second flap overlying and adhesively united to the first flap and having a portion separable therefrom to exposesaid spout portion, and means for preventing the adhesive from uniting the separable portion of the second flap with the spout portion, the portion removed from the second flap providing an aperture thru which the spout may extend.

3. A carton comprising a flap having a portion thereof foldable to provide a spout, and a second flap overlying and. adhesively secured to the first flap and having a portion'separable therefrom, a third flap overlying and adhesively secured to the second flapand having a portion separable therefrom, said portion of the third flap overlying the separable portion of the second flap so that the two portions are adhesively united, and means for preventing the adhesive from uniting the separable portion of the second flap with the spout portion so that removal of the united portions exposes the spout portion and provides an aperture thru which the spout may extend.

WILLIAM B. McLAUGHLIN.