US2576595A - Dispensing container - Google Patents

Description

Nov. 27, 1951 s. GOLDSTEIN DISPENSING CONTAINER Original Filed March 19, 1948 INVENTOR. Saul Goldsfiep'm'.

ATTORNEY I for use. 1 e 1 --,Figu1e 3 is a view similar to Figure. 2, but withg Patented Nov. 27, 195i UNITED STATES PATENT OFFICE DISPENSING CONTAINER Saul Goldstein, San Francisco, Calif.

Original application March 19-, 1948, Serial No. 15,921. Divided and this application March 18, 1949, Serial No. 82,185

1 Claim. l

The present invention relates to liquid holding containers formed with pouring spouts and is a division of my prior copending application for Dispensing Containers, Serial No. 15,921, filed March 19, 1948. to the method of forming the containers and spouts therefor, and the present invention relates particularly to the product.

Heretofore, pouring spouts for liquid containing cartons have been unsatisfactory for two main reasons, first they are insufiicient in operation because they leak and drip, are unsanitary, do not properly serve as a-closure to seal the con= tainer once it is opened, and are very perishable and deformable due to the fact that they are not properly supported by a rigid fulcrum point: and second all prior art spout arrangements if made stronger and less leaky become too bulky for manufacture in the present standard milk carton machinery, which requires all sidewall folds to be kept at two thicknesses of material. Accordingly, one object of the present invention is to provide from one sheet of material a liquid holding container with an integrally formed pouring spout, wherein all elements of the container and spout are formed in two thicknesses or less of the material.

Another object is to provide in a carton for milk or the like, a rigid fulcrum point across the bottom of a pouring spout formed from one thickness of the carton material, to thereby contribute to the strength, rigidity and efficiency of the pouring spout.

Still another object is to develop a pouring spout adapted to effectively cooperate with a sealing tongue formed in the carton wall to serve as a closure for the carton after initial use.

A further object is to so shape, so proportion and crease a plane surfaces single sheet of material as to form a carton blank with a pouring spout, which at no point when it is folded exceeds a two-ply thickness at its side wall flap sections.

With these and other objects in view, the invention consists in the construction, arrangement and combination of parts hereinafter described and particularly pointed out in the claim.

In the drawing like parts throughout the several views are given like numerals and are thus identified in the following detailed description:

Figure 1 is an inside view of the blank before it is formed into a container.

Figure 2 is a perspective view of the container assembled and waxed before the seal is broken This prior application relates the sealing tab removed from the tongue prior to pulling out the spout. I

Figure 4 is a perspective view showing the spout pulled out for pouring.

Figure 5 is a partial perspective view showing the cooperation between the spout and tongue for closing the container after use.

Figure 6 is a modification of the present invention showing a top plan View of the novel spout of the present invention applied to a disc type bottle cap.

Figure '7 is a bottom plan view of Figure 6.

Referring to the drawing in detail, Figure 1 illustrates a blank from which the container and its pouring spout are formed.

The blank is formed from one sheet of material It], such as cardboard or th like. The cardboard material is formed into four side wall sections l2, l3, l4 and by side scorelines [6, top score lines I! and bottom score lines 18 and into continuation 20 of the top score lines ll.

The pouring spout wall section [9 serves to form part of the container top as well as the side thereof and is formed with a trapezoidal out out section or blank 2!, whereby there is formed a trapezoidal opening 22. For example, this .sec tion l9 comprises a side wall forming section A and a top wall forming section B. The blank 24 in turn is trimmed to form the present novel pouring spout blank, which comprises a rectangular body strip 24 divided by a portion of the score line 20 into an upper section C and a lower section D. The upper section C is defined by side score lines 26 and 21 and by a top arcuate or curved edge 28, which edge is free to swing in the trapezoidal opening 22. The lower section D is defined by a pair of right angle cut-out portions 29 and 30 at each side, the score line 243 at the top, and the base is formed as an integral part of the bottom edge of the trapezoidal opening 22.

Secured to the upper section A of the body strip 24 along the score lines 26 and 2'! are wing-like diverging members 3| and 32, which are free of the side walls of the opening 22 and therefore free to swing with the upper section C of the body strip 24 in the said opening. The section D is fixed after carton assembly as hereinafter explained.

The top of the container is made from rectangular panels 34, 35, 36 and 37 formed by side score lines 38, score lines [1, and upper score lines and 45.

The top rectangular sections and 3'! areielach container.

formed with diagonal score lines 46, which meet or converge to a point at the score lines 39. From this point there is another score line 41 transverse of each of the flaps Al and 43. The top portion is folded along the aforementioned score lines as is generally well known in the art to provide the stapled top portion 41, as shown in Figure 2. However, this top fold is distinguishable from the prior art by the addition thereto of the wall (9 and its sections A and B. This upper section B of the pouring spout section I9 folds inside the carton and over along the score line 20,. When thus folded the upper section C of the pouring spout blank lines up with an opening 51!. for-med in the top Wall 34 equal in size to the area of said section C. As the sides top are folded together, the bottom flap panels 53, '4, 55 and-56 are also folded, lapped over and glued together. After this the entire carton is dipped in wax'as is. well known to the art.

Before the actual dispensing operation takes place, there is a seal tab. 51, mounted over the opening 50. This tab 5% is separable by the operator along perforations 52, which when pulled off leaves a depending tapered tongue 53. This section C when it is closed and forms therewith a fluid closure seal, as shown in Figure 5 Also, the lower edge of the opening 56) is in line with the score line H. of side wall I2 and serves as a steady fulcrum edge E at the score line 2% of upper section C of the spout blank.

Method of forming and folding the container and spout for operation cut from the trapezoidal opening 22 into its final structural form as hereinbefore described.

The next step is to glue certain predetermined parts and sections of the blank, so that when folded all glued surfaces are covered and so that no glue is applied to wing-like members 3| and 32 or the upper swinging section C and wing-like members 3i and 32 of the body part 24 of the spout blank. This selective gluing of the side of the spout wall it is accomplished by masking over the parts 0,31 and 32 and then coating the outer side of the remaining surface of panel i9, so that when it is folded the glue coated side presses against the inner surface of the wall 34 of the To provide a tight seal extra flaps 58 and 59 may be included in the form of panel I-EJ'. Glue isalsoapplied to the inner face of bottom wall 53 and the outer faces of bottom walls 54, 55 and 56. Thus when folded on the usual former these glue coated parts are sealed together and the part0 of the spout .lines up back of the tab '55 in the opening 59 with the .parts v3! and 32 flat but ungluedon each side thereof.

The final step is to dip the glued container in. wax to provide a leak container andtogive addedrigidity thereto.

Operation -sealingand-guiding'tongue 53. i

Next the tongue is raised and the thumb nail engaged over the arcuate edge 28 of part C, whereupon the same is pulled forward out through opening 50. As this is done the wings 3| and 32 fold or hinge along the score lines 26 and 2'! due to the pressure developed thereon by the side edges of the opening 50, until their rear top edges contact with the, upper edge of the said opening in notches. on either side of the tapered tongue 53. The tongue is tapered to serve as a pilot member for the wing-like members 35 and 32.

puring this opening action no buckling or deforming of" the wall i2 or 34 occurs, because all strain is taken up at the fulcrum edge E at the top of wall l2 and bottom of opening 50. The development fa rigid hinge point in a container of this, type has long been sought without success. All rigid fulcrum points heretofore having been made in separate pieces or with more than two thicknesses.

Another embodiment of the present invention for; use with the conventional glass milk bottle is illustrated in Figures 5 and 6 of the drawing and comprises upper and lower discs of cardboard 6'0 and Bi formed from an elongated folded over cardboard strip, not shown, These discs may be stamped ut. f t e strip 59 hat a Small portion 63 of the folded portion serves as a connecting hinge.

Prior to formation of the discs or after they are cut depending upon the method of making practiced, the lower disc or fold portion is cut out to form an opening at with a tab 65 therein secured at one end b pdlf rations 59. The perforations 66 def ne the tapered end of a tongue t'i. Thus the tab. t5 ay be pu le of a on the p r tions 66., to thereby leave the tapered tongue in part of the opening In the opposed fold portion or lower disc 6| is stamped, out or otherwise suitably formed a trapezoidal opening 68. The material stamped out from this opening is formed into a novel pouring spout blank 69. This blank comprises a rectangular body strip 18 for-med into two sections .0 and D, a pair of wing-like members H and 12 attached to the section C along score lines 13 and I4, and right angled cut-out portions 15 and 7,5 on each side of the sectionD.

The final assembly of the two discs 60 and BI by gluing them together is done so that parts II, 12 and C are free from any contact with a glued surface and are'free to swin over the lower edge of the Opening 54 in disc 60. This edge serves as a fulcrum pointover which the dividing score line 16 between sections C and D' may pivot. Thus the section 1) is fixed as a part of the two discs, while section C is free to swing out through the opening 16.4 over the edge l5 and the wing-like members II and 12 are automatically folded along the score lines 13 and 14 to form a pouring spout.

The top edge H of section ,0 may be curved to receive a fin ernail to facilitate actuation of the spout, and the tapered tongue 6': is so shaped and positioned as to serve as a pilot member during the opening out of the spout and as a cooperating closure part when the section C is pushed in flush with the plane surface of the disc 60 after each pouring operation.

Preferably after gluing the discs together as hereinbefore explainedthe entire assembly in its finished cut out form is dipped into a molten wax or paraflin solution. This gives the spout 7 portion added rigidity and prevents leakage and absorption of foreign materialsv and moisture.

This is particularly advantageous for door step deliveries in rain or snow, as no moisture can seep in and the caps are very readily washed off due to the smooth finish of the wax.

While only two embodiments of the invention have been illustrated and described, various changes and modifications, which will now appear to those skilled in the art, may be made without departin from the scope of the invention. Reference is therefore to be had to the appended claim for a definition of the limits of the invention.

I claim:

A container for use in dispensing liquids such as milk, said container being fabricated of a single sheet of paper and at least one upright wall portion thereof being two plies in thickness, the outer ply of such wall portion being incised to provide a rectangular opening closed by a seal tab attached at the upper end to the outer ply by a downwardly curved line of perforations, the inner ply of such wall portion being incised to provide a rectangular panel, said panel being divided into substantially equal rectangular sections by a transverse score line, the lower of said sections being adhesively fixed to said outer ply below said rectangular opening therein and the upper of said sections being positioned opposite to said outer ply opening, the lower edge of said outer ply opening being in alignment with the said transverse score line of the said rectangular inner ply spout panel, whereby said upper free section may be downwardly and outwardly displaced over the said lower edge of said outer ply opening to form the bottom of a pouring spout, said lower edge of the outer ply openin serving as a fulcrum for said pouring spout, and side wing-like members carried only by said free spout section pivotally connected thereto by parallel score lines along each longitudinal edge of said free spout section and in continuous alignment with the longitudinal edges of said fixed lower section, said wing-like members extending diagonally downward from the said parallel score lines adjacent the parallel side edges of the lower rectangular fixed section adapted to be forced by the side parallel edges bounding the outer ply opening to an upright position substantially at right angles to said spout bottom of the said free section when said free section is pulled outward through the said rectangular opening in the outer ply.

SAUL GOLDSTEIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,931,991 Mergentheim Oct. 24, 1933 1,973,960 McLaughlin Sept. 18, 1934 2,010,863 Johnson Aug. 13, 1935 2,019,943 Venning et al Nov. 5, 1935 2,323,447 Chase July 6, 1943 2,332,205 Clanon Oct. 19, 1943

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