US3379359A

US3379359A - Window display container

Info

Publication number: US3379359A
Application number: US545315A
Authority: US
Inventors: Edwin L Arneson
Original assignee: Federal Paper Board Co Inc
Current assignee: Federal Paper Board Co Inc
Priority date: 1966-04-26
Filing date: 1966-04-26
Publication date: 1968-04-23
Anticipated expiration: 1985-04-23

Description

E. L. ARNESON WINDOW DISPLAY CONTAINER Filed April 26, 1966 2 A ril 23, 1968 fm/erzizfr: 152mm Z. @f7265072,

24 ml? Q Patented Apr. 23, 1968 3,379,359 WINDOW DISPLAY CONTAINER Edwin L. Arneson, Hackensack, N.J., assignor to Federal Paper Board Company, Inc., Bogota, N.J., a corporation of New York Filed Apr. 26, 1966, Ser. No. 545,315 Claims. (Cl. 229-16) This invention relates to packaging and is more particularly concerned with improvements in a container which is fabricated from a foldable blank of paperboard or similar material and which has a window opening through which a portion of the contents may be viewed.

Containers have been produced heretofore from paperboard and similar foldable sheet material which are provided with a window opening in one or more of the wall panels, the opening being covered generally by a transparent sheet, or by an overwrap of similar material. Various forms of these window containers such as, for example, rectangular shaped cartons with seal-end, lock-end or tucked end panels or tray-receiving sleeve types, have been produced for a long period with the window opening cut out of an interior portion of one or more of the wall panels so as to leave integral wall portions surrounding all sides of the opening. This has resulted in a substantial amount of undesirable waste since the portion of the blank which is cut to form the window opening is discarded. A principal object therefore of the present invention is to provide a window-type container wherein the blank for the same is cut in a novel manner so as to eliminate the waste resulting from cutting out the window opening in the manner normally followed heretofore.

A more particular object of the invention is to provide a window-type container and a method of fabricating the same wherein a blank is prepared for forming the container with the window opening extending from an edge of the blank inwardly into a wall forming panel and with a connecting panel provided on the edge of the blank opposite thereto which serves to close the open side of the window opening when the container is set up.

It is another object of the invention to provide a window type container which is fabricated from a single blank of paperboard material cut and scored to provide a plurality of connected wall forming panels with a window opening cut in one end of the blank and extending from the free edge of the blank inwardly into the end wall panel and with a glue flap provided at the opposite end of the blank which is hinged to a wall forming panel and which is adapted to overlie and extend along the edge margin of the window bearing panel so as to close the open side of the window opening when the container is set up.

It is still another object of the invention to provide a blank for fabricating a container wherein a window opening is cut in the wall panel at the one end of the blank, which opening extends to the end edge of the blank and has a dimension transversely of the blank which is preferably equal to one-half the tranverse dimension of the blank whereby a plurality of the blanks may be cut from a larger sheet with the blanks disposed so that the ends thereof in which the window openings are out are in alternate matched or nested relation whereby the portion of the sheet which is cut to provide the window opening in each blank forms portions of the blanks which extend along opposite sides of the window openings of two opopsitely disposed blanks.

These and other objects and advantages of the invention will be apparent from a consideration of the container and the method of fabricating the same which is shown by way of illustration in the accompanying drawmgs:

FIGURE 1 is a perspective view of one form of carton in set up condition which embodies the principal features of the invention;

FIGURE 2 is a cross section, to an enlarged scale, taken on the line 2-2 of FIGURE 1;

FIGURE 3 is a plan view of the blank employed in fabricating the carton of FIGURE 1; and

FIGURE 4 is a view illustrating the manner in which a plurality of the blanks are cut from a web.

Referring to FIGURE 1 of the drawings, there is illustrated in set up and closed condition a carton 10 which incorporates the principal features of the invention. The carton 10 is adapted to be fabricated from a generally rectangular paperboard blank 11 (FIGURE 3) which is cut and scored as shown. The carton 10 is of a size and shape suitable for packaging products such as pies, rolls and similar bakery goods or other products where it is desirable to view a portion of the contents of the carton without opening the carton.

The blank 11 is symmetrical about its longitudinal axis a-a and is divided by laterally spaced, longitudinally extending score or crease lines 12 and 13 into a center panel forming section 14 and two relatively narrow side

wall forming sections

15 and 15. The center section 14 is divided by longitudinally spaced parallel

transverse score lines

17, 18, 19 and 29 into a top wall forming panel 21, a side or end wall forming panel 22, a bottom wall forming panel 23, a side or end wall panel 24 and a glue flap 25 hingedly connected, in the order named, on the score lines. The two

side sections

15 and 15 of the blank 11 are cut in an identical manner to provide side or

end wall panels

26, 26 and 27, 27' extending on opposite sides of the top and

bottom wall panels

21 and 23 and

corner connecting flaps

28, 28' and 29, 29' extending at opposite sides or ends of the

panels

22 and 24. The

latter panels

22 and 24, for convenience in description, may be considered the back and front wall panels respectively. The top wall forming panel 21 has a window opening 30 cut therein which extends from the free end edge 31 of the blank 11 a predetermined distance into the panel 21. Preferably, the window opening 30 has a dimension transversely of the axis of the blank 11 which is approximately equal to the combined width of the remaining side portions of the blank which extend in the direction longitudinally of the blank along the sides of the opening 30. The dimension of the opening 30 in the longitudinal direction of the blank may be less than the corresponding dimension of the panel 21, as shown, or it may be greater so as to extend into the back wall 22 if desired. The blank in the form shown in FIGURE 3 is provided with a sheet 32 of a transparent plastic film of sufiicient size to cover the opening 30 with its margins secured by an adhesive or other fastening means to the panel portions surrounding the three sides of the opening 30. Alternatively, when the carton is designed to be covered by a transparent overwrap the sheet 32 may be omitted.

In setting up the carton 10 as shown, the blank 11 is folded on the transverse score or

crease lines

17, 18, 19 and 20 and the glue flap 25 is adhesively secured in overlying relation along the margin of the top wall panel 21 so as to form a closure for the front side of the window opening 30. If the carton is to be overwrapped, it may be desirable to tuck the fiap 25 beneath the margin of the panel 21. In either arrangement the flap 25 serves a dual function, when secured to the top panel 21. It connects the top panel 21 with the front panel 24 and also completes the frame around the window opening 30 so as to enhance the appearaance of the carton. The tube which is initially formed from the blank 11 may be filled with a product prior to closing the open ends or one end may be closed by folding the side wall panels and their associated

corner connecting flaps

26, 27, 28, 29 or 26, 27, 28, 29' and securing the same with an adhesive or in any suitable manner after which the product may be inserted and the wall forming panels at the opposite end folded and secured in closed position in a similar manner. In one form of the carton the securing means may be omitted between the corner connecting tabs 29 and 29' and the associated side wall panels so that the glue flap 25 may be torn loose and the front wall 24 of the carton folded down to provide access to the interior of the carton.

The blanks 11 may be nested or matched when a plurality are cut from a web or larger sheet of the proper dimensions in the manner shown in FIGURE 4. The blanks 11 are arranged on the web 40 in double row alignment with the ends having the window openings in one row facing the corresponding ends of the blanks in the other row so that with proper spacing longitudinally of the web the window ends may be nested as shown. The transverse dimension of the window opening 30 in the form of the blank illustrated is made equal to one half the width of the blanks so that the portion of each blank cut out to provide the opening 30 forms a side or frame portion of the end panel of each of the two blanks in the opposite row and there is no waste of the stock material 40 while, at the same time, window openings 30 of uniform size are provided in each of the alternately spaced blanks.

The invention is not limited to the fabrication of the specific form of container illustrated. It may be employed to advantage in other container forms such as tubes with various end closures or open ended sleeves for telescoping or sliding trays.

While particular materials and specific details of construction are referred to in describing the form of container illustrated it will be understood that other suitable materials and equivalent structural details may be resorted to within the spirit of the invention.

I claim:

1. A generally rectangular blank of foldable sheet material which is cut and scored for fabricating a rectangular container having a window opening in a wall thereof, said blank comprisng top and bottom wall and a pair of end wall forming panels connected along spaced, parallel, hinge forming score lines, one of said panels terminating at a cut edge of the blank, and a rectangular window opening cut in said blank so that one side thereof co-incides with said out edge, said opening extending inwardly of said cut edge in the direction of the opposite edge of said one panel, and a relatively narrow connecting panel hinged to the free edge of the wall panel at the oppositely disposed edge of said blank which is adapted to be secured to the margin of said one panel in which said opening is cut when the container is set up whereby to form a closure for the side of said window which extends along said out edge.

2. A blank as recited in claim 1, and said connecting panel having a dimension which is substantially less 4. than the corresponding dimension of said window opening in the direction inwardly of said cut edge.

3. A blank as recited in claim 1, and said window opening being rectangular and having a dimension in: the direction parallel with said out edge which is approximately equal to one-half the corresponding dimension of the blank.

4. A method of forming from a large sheet or web of material a plurality of rectangular container blanks each having a series of connected wall panels with a window opening extending from an edge of the blank into at least one of the wall panels thereof which comprises arranging the blanks for cutting in side-by-side row forming relation and in paired rows with the blanks in one row extending in a direction opposite the blanks in the associated row and the window openings extending from the inner edges toward the opposite edges in each row thereof, the blanks in one row being offset relative to the blanks in the associated row and the marginal portions along said cut edges being disposed so that they are nested with the portions cut out to provide each window opening forming side portions extending along the sides of the window openings in the two blanks which are disposed opposite each said blank in the adjoining row whereby the window openings may be formed in the blanks without waste of the sheetor web material.

5. A method of forming a plurality of container blanks from a large sheet or web each having a series of connected wall panels with a window opening extending from an edge of the blank into one of the wall panels thereof which comprises cutting from the large sheet or web a plurality of the blanks with the blanks arranged in side-by-side row forming relation and in paired rows the window openings extending from oppositely disposed inner edges toward the opposite outer edges in each row thereof, the blanks in one row being disposed in offset relation relative to the blanks in the opposite row, said openings each having a dimension transversely of the blank which is one-half the corresponding dimension of the blank, the blanks being arranged with marginal portions along said cut edges disposed so that they are nested and the portions cut to provide each window opening constituting side portions extending along the sides of the window openings in the two adjoining blanks which are opposite said blank in the adjoining row, whereby there is no waste of material in cutting the nested marginal portions.

References Cited UNITED STATES PATENTS 436,142 9/1890 Lohmann 229-38 2,200,818 5/1940 Bergstein 229--l4 2,824,684 2/1958 Ahlers 229 44 2,973,086 2/ 1961 Thompson 20645.3l

FOREIGN PATENTS 252,967 6/ 1926 Great Britain.

JOSEPH R. LECLAIR, Primary Examiner.

WILLIAM T. DIXSON, Examiner.

Claims

1. A GENERALLY RECTANGULAR BLANK OF FOLDABLE SHEET MATERIAL WHICH IS CUT AND SCORED FOR FABRICATING A RECTANGULAR CONTAINER HAVING A WINDOW OPENING IN A WALL THEREOF, SAID BLANK COMPRISING TOP AND BOTTOM WALL AND A PAIR OF END WALL FORMING PANELS CONNECTED ALONG SPACED, PARALLEL, HINGE FORMING SCORE LINES, ONE OF SAID PANELS TERMINATING AT A CUT EDGE OF THE BLANK, AND A RECTANGULAR WINDOW OPENING CUT IN SAID BLANK SO THAT ONE SIDE THEREOF COINCIDES WITH SAID CUT EDGE, SAID OPENING EXTENDING INWARDLY OF SAID CUT EDGE IN THE DIRECTION OF THE OPPOSITE EDGE OF SAID ONE PANEL, AND A RELATIVELY NARROW CONNECTING PANEL HINGED TO THE FREE EDGE OF THE WALL PANEL AT THE OPPOSITELY DISPOSED EDGE OF SAID BLANK WHICH IS ADAPTED TO BE SECURED TO THE MARGIN OF SAID ONE PANEL IN WHICH SAID OPENING IS CUT WHEN THE CONTAINER IS SET UP WHEREBY TO FORM A CLOSURE FOR THE SIDE OF SAID WINDOW WHICH EXTENDS ALONG SAID CUT EDGE.