US2470388A - Dispensing container having closure locking means - Google Patents

Description

May l?, 1949.l c. o. BALL 2,470,388

DISPENSING CONTAINER HAVING CLOSURE LOCKING MEANS Filed Jan. 25, 1945 Patented May 17, 1949 UNITED STATES PATENT OFFICE lDISPENSING CONTAINER HAVING CLOSUBE LOCKING MEANS Charles O. Ball, Toledo, Ohio, asslgnor to Owens- Illinois Glass Company, a corporation of Ohio Application January 25, 1945, Serial No.v 574,515

3 Claims. (Cl. 229-17) hinged portion serving as a. door or means for opening and closing a lling and dispensing opening in the top of ythe container'and designed to provide complete protection cf the contents of f the container from contamination by extraneous matter, both before and during removal of the contents from the container.

A further object of the invention is to provide a container made of sheet material and having a plural ply top having the several plies scored in a manner to define sections which may be severed along the score lines to provide a swinging closure or door adapted for opening and clos- -ing an opening through which the contents of the container may be dispensed, the several plies of the door being constructed and arranged to protect the contents of the container from `contamination.

Other objects of the invention will appear hereinafter. I

Referring to the accompanying drawings: Fig. 1 is an elevation of -a blank of sheet mate-'- rial adapted to be folded for forming the container.

`Fig. 2 is a plan view showing the blank folded to complete the body of the container and having certain of the top ilaps folded to form the lowermost ply of the top, and the other top flaps swung outwardly for the purpose of illustration.

Fig. 3 is Ia perspective view of the completed container opened for dispensing its contents.

Referring to Fig. 1, the blank of fibrous sheet material such'aspaper or cardboard from which the container is formed, is cut or stamped 'from sheet stock in a single piece. The blank 4is adapted to be folded along vertical lines I to form the sides Il, 1, I, and i of 'the container body, the side i having an integral marginal strip I for forming the body seam. .The bottom of the container is formed by lower end flaps II, I2, I3, and Il which are folded inwardly lalong s, line I5 and secured together by'adhesive material.

The top of the container comprises flaps I6, I1, I8, and Is which are folded inwardly along the line 20 which defines the upper edge o1' the container. body. The top formed by these flaps is of three-ply construction. The lower or innermost ply is formed by the flaps I1 and I 9. After the body of the container has. been formed by folding along the lines l, the flaps I1 and I! may be folded-inwardly at right angles to the body with their free edges `2l (Fig. 2) abutting or in close proximity, -therebyforming the lowermost ply' of the container top. The blank is slit along the lines 22 to permit folding of the flaps. The flap I9 comprises a removable section 23. one end of which is defined by a slit 2l. The sides are dened by weakened lines 25 consisting of scores or perforations-permitting the section 2'! to be separated from the flap as hereinafter described.

The intermediate ply of the container top conssts of the flap I8 which isv folded inwardly to over-lie the lower ply. The flap I8 comprises a section 26 adapted to be severed along score lines 21 defining the sides thereof.

The outer or top ply of the top is formed by folding the flap I'S inwardly over the intermediate ply I8. The flap I6 comprises a section 28 adapted to -be severed along score lines 29 defining the edges of said section, permitting the latter to be swung upwardly about a hinge line 30.

The sections 23, 26 and 28 are so positioned and arranged that when the flaps are folded for for-ming the top, said sections are in superposed relation as shown in Fig. 3. They are also secured together by adhesive as hereinafter described, providing a door for closing an opening 3| through which the container is ililed and through which the contents are dispensed.

door opening :I corresponds in size and shape to the removable section 2J, being formed by the' removal of :aid section from the nap I9 as presently described.

The several plies form-ing the container top .when folded together are adhered to each other and held in position by adhesive material which may be applied to the flaps before the blank is folded. The adhesive is applied to the shaded areas in Fig. 2. The adhesive material covers the upper face of the lower ply comprising flaps Il and I9, except blank areas 32 and Il which 32 and 33. The section 26 is adhered only to the removable section 23 of the underlying ply.

The flap I6 has a `coating of adhesive material applied .to its inner face and covering all that portion thereof extraneous to the door section 28. The latter is left bare except a coated area 34 which, when the top is folded, overlies the door section 26. The flap I6 is formed with an-integral strip 35 adapted to be folded downwardly against the side 8 0f the container and adhered thereto by adhesive material applied to the corners 36 of the strip, said corners being adapted to be separated from the remainder of the strip along score lines 31.

In sealing the upper end of the container, the

'flaps II and I9 are folded inwardly as above described to form the inner ply of the top. The flap I8 is then folded inwardly so that it is securely adhered to the subjacent ply, with the door section 26 overlying and adhered to the removable door section 23. The flap I6 is then folded inwardly and adhered to the underlying ply I8 over its entire area outside of that dened by the door section 28. The area 34 of adhesive on the door section 28 overlies the section 26 and is adhered thereto yover substantially its entire area except the inner end portion of the section 26 adjacent to the hinge line 38. The ap 35 is then folded down and adhered to the container wall 8, thereby completing the' container and leaving it hermetically sealed.

To open the container for dispensing its contents, a knife blade or ,the like is inserted beneath the edge of the sealing strip 35 and the latter by an upward pull is severed along the score lines 31. As the upward pull continues, the door sections 28, 26 and 23 are severed along their side edges and the door thereby opened. As the door section 28 or upper ply of the door is of substantially greater area than the removable section 23 which defines the opening 3|, and overlies the intermediate ply surrounding said opening, the surface portions of the container top surrounding the opening and with which the contents of the container may come in contact, are kept clean and free of dust or other 4foreign material so that the contents of the container are protected against contamination. Also, when the door, which may comprise the major portion of the top surface of the container, is raised, particles of contaminating material which may have been deposited on the top of the closed containenare prevented from falling into the container in which milk or other liquid is poured. After dispensing any desired portion of the contents, the door may be lowered lfor closing the pour opening 3l and again covering and protecting the surrounding surfaces.

As shown in Fig. 3, the side edges of the removable section 23 are parallel with those of the section 26 and slightly overlap the latter. That is, the section 23 is slightly wider than the opening through the intermediate ply I8, so that when the door' is swung down to closed position, the section 23 is forced or squeezed through said opening and engages beneath the edges of the opening, thereby holding the door in closed position. The material forming the door is suliiciently compressible and resilient to permit the closing of the door.-

If desired, a score line 38 (Fig. 2) may be made across the inner end of the door section 26, so that said section is completely severed from the 4ply I8 when the door is opened.

Modifications may be resorted to within the spirit and scope of my invention.

I claim:

l. A container formed of .sheet material and comprising a rectangular tubular body and a. plural ply top formed of aps integral with said body and folded inwardly therefrom, said top including an upper ply, an intermediate ply, and a lower ply, the lower ply having an opening therethrough, said top including a hinged door comprising upper, lower, and intermediate door sections adhered together, said lower section being fitted within said opening, said intermediate ply being formed with an opening in register with said intermediate door section and having marginal edges positioned to slightly overlap and overlie the lower door section when said door is in closed position, the extent of said overlap being such that the lower door section can pass through said opening in the intermediate ply as the door moves to closed position and engage beneath said overlapping edges and releasably hold said door in closed position.

2. A container formed of sheet material and comprising a rectangular tubular body and top end iiaps folded inwardly and forming a threeply top for the container including an upper ply, an intermediate ply and a lower ply, said lower ply comprising a door section defined by weakened lines extending along the sides thereof and removable to provide a pour-out opening, said intermediate ply comprising a door section overlying said removable section and defined by weakened lines along its side edges, said upper ply having a door section having side edges dened by weakened lines, said door sections being adhered to each other and adapted to be severed along said weakened lines and form a door hinged to be swung to position to'close said opening, said door section'of the lower ply having its side edges protruding beyond the side edges of the overlying door section of the intermediate ply a. slight distance such that as the said door is closed, said protruding edges pass between and engage beneath the adjoining edges of the intermediate ply and thereby releasably hold the door in closed position, the material forming the door being sufficiently compressible and resilient to permit said closing and releasable holding of the door.

3. A container formed of sheet material and comprising a rectangular tubular body and top end flaps folded inwardly and forming a three ply top for the container including an upper ply, an intermediate ply and a lower ply, said lower ply comprising a door section defined by Weakened lines extending along the sides 'thereof toa.`

free edge of the ply and removable to provide a pour-out opening, said intermediate ply coma door hinged to be swung to and from position to close said opening, said door section of the upper ply including at its free end a. nap folded downward against a side wall of the container. the nap' having corner portions adhered to the container and the remainder of the ap being unadhered, the flap having corner score lines separating the adhered corner portions from the said remainder of the flap, permitting the Hap to be released 'ly` `severance along said score lines thereof.

CHARLES 0. BALL.

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

Number UNITED STATES PATENTS Namo Date Doble Oct. 8, 1912 Daller May 21, 1935 Forrer Nov. 12, 1935 Mergentheim Jan. 18, 1938 Lanko et al e- July 18, 1939 Stedman Oct. 8, 1940' Chase July 6, 1943 Sunderhauf Dec. 14, 1943 FOREIGN PATENTS Country Date Number Great Britain July 5, 1938

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