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Publication numberUS2631772 A
Publication typeGrant
Publication dateMar 17, 1953
Filing dateApr 6, 1949
Priority dateApr 6, 1949
Publication numberUS 2631772 A, US 2631772A, US-A-2631772, US2631772 A, US2631772A
InventorsWalter Hiersteiner
Original AssigneeTension Envelope Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 2631772 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

March 17, 1953 w. HIERSTEINER 2,631,772

CONTAINER Filed April 6, 1949 3 Sheets-Sheet 2 nventor .B14/,7, A im Gttomegs Patented Mar. 17, 1953 CONTAINER Walter Hiersteiner, Kansas City, Mo., assigner to Tension Envelope Corporation, Kansas City, `Mo., a corporation of Delaware Application April 6, 1949, Serial No. 85,761

1 Claim. 1

This invention relates to a container for packaging various articlesof merchandise that are ordinarily packaged in cartons, the principal object being to provide a container having the characteristics of an envelope in that it is completely formed in flat condition with side and bottom flaps sealed together and an open closure ap ready for insertion of goods without iirst havingto be erected in the form of a box but which lls out and forms a box-like enclosure tting the contents when placed therein.

Other objects of the invention are to :provide a container of this character that is Vadapted to be manufactured on envelope making machinery; to provide a container that remains flat and is supplied to the user in the manner of envelopes; to provide a container that expands with the thickness of the contents to be placed therein and which contracts to embrace and retain the inserted articles in closely associated orderlyT arrangement; and to provide a container substitute for cartons that is inexpensive, readily stored prior to use and which is more satisfactory for packaging various articles, for example, articles in packs such as greetingV cards and their envelopes.

In accomplishing these and other objects of the invention, I have provided improved structure, the preferred form of which is illustrated in the accompanying drawing wherein:

Fig. 1 is a perspective view of a container constructed in accordance with-the present invention,V the container being lled out to shape and the closure flap-in closed position.

Fig. 2 is a perspective view ofthe container with Vthe enclosure having been inserted therein and withthe closure flap being moved to closed position. Fig. 3 is an end view of the container in nat condition as it appears after manufacture is completed. Y f

Fig. 4 is a perspective view of a modified form of container partly open. Y

Fig. 5V is a partly folded view of the blank from which the container is constructed to Yillustrate the direction of folds when making a container of the type shown in Fig. l.

Fig. 6 is a plan view of the blank from which the containers are constructed. f Figs. 7 and 8 are enlarged sections through a portion of the blank illustrating arrangement and direction of fold relative to the scores.

Fig.'9 is a perspective view of a container embodying features of the invention and equipped with a locking tab,


the closure flap'being in open Fig. 10 is a lsimilar view with the closure flap closed and secured by the lock flap.

Fig. 11 is a perspective view of a container constructed according to the present invention and wherein the closure flap is secured by a metal fastener.

Fig. l2 is a view of a container embodying the invention and showing the closure flap secured by a button and string.

Fig. 13 is a perspective vew of another form of the invention with a tuck style of closure iiap, the flap being shown in open position.

Fig. 14 is a similar view, showing the closure flap covering the insert opening with the tuck tab inserted under the bottom flap.

Referring more in detail to the drawings:

I designates a container constructed -in accordance wth the present invention and which is formed from a blank 2 as illustrated in Fig. 6, and died from paper or similar stock. The blank 2 includes a rectangular body portion 3 adapted to form one side of the container, preferably the back 4 and projecting from opposite marginal edges are side aps 5 6, a closure nap 1, and a bottom flap B. The side flaps 5 and 6 have upper and lower edges S-I and 9'-I0' in registry with scores II and I2 defining the upper and lower edges of the body portion 3. The connecting point of the flaps 5 and 6 with the body 3 are provided with transverse scores I3 and Ill defining the sides of the body portion 3 and which form hinges on which the flaps are adapted to bend with respect thereto. Spaced from the scores I3 and Id are substantially parallel scores I5 and I6 that denne side portions II and I8 therebetween adapted to form the sides I9 and 2i) of the container. The side portions I1 and I8 are provided with intermediate parallel scores 2I and 22 whereby the portion 23 on one side of the intermediate score is adapted to be folded over the portion 24 on the opposite side of the score when the blank is folded and in collapsed condition. The portions of the flaps 5 and 6 between the outer edges 25 and 2E and the scores I5 and I5 are adapted to constitute the other side member 21 of the container corresponding to the member 4. The. flaps are, therefore, of sufficient length to provide overlapping ends 28 and 29 as shown in Fig. 2 which are sealed together by an adhesive as indicated at 30 in Fig. 6. The bottom flap 8 also has a transverse score 3l spaced from the score I2 a distance slightly less than the distance between the corresponding scores of the side flaps. The bottom ap is also provided with an intermediate score 32 located midway between the scores I2 and 3l. The bottom ap is also of sufficient length to provide a seal nap 33 adapted to overlap and seal against the outer faces of the overlapping portions 28 and 29 of the front member 21 of the container and which is sealed thereto by adhesive indicated at 34 as shown in Figs. 6 and '1.

The closure flap 1 has a transverse score 35 tha-t is spaced from the score Il a distance substantially corresponding to the dep-th of the sides -so as to cover the insert opening 35 formed between the front and back members. The closure flap also has an extension 31 that is adapted to overlap the front side of the container and which may be suitably attached thereto, for example, as by an adhesive indicated at 33 or other suitable fastening means.

The blank thus described is adapted to be folded and gummed in an ordinary envelope making machine so that the blanks may be inexpensively manufactured and in large quantity to supply the packagers of various items of merchandise. When the blank is folded, the side flaps may be folded inwardly on the scores i3 and I4 so that the portions 23 overlie the inner face of the body por-tion of the blank. 'Ihe flaps may then be bent outwardly on the scores 2l so that the portions 24 of the webs overlie the portions 23. The aps are then bent on the scores I5 and I6 to provide corners of the container and to seal the overlapping ends 28 and 29 thereof together by means of the applied adhesive 3B. The bottom flap 3 is then bent on the intermediate score 32 to bring the sealing gum thereon into sealing Contact with the overlapping flaps to oomplete formation of the container with the portions forming the bottom projecting outwardly. When thus completed, the container is in completely flat condition and may be packaged in the saine marmer as envelopes are usually supplied to a user. If desired, the side flaps may be folded on the intermediate scores 2i and 22 as shown in Fig. 4 so that the folded web portions extend outwardly from the body portion when the container is in collapsed position.

In order that the fol-ds may retain the container in completely collapsed and fiat condition, the concave sides 39 of the scores can be formed in the faces of the blank opposite to the direction on which the blank is folded as shown in Figs. '1 and 8.

In using the container, the contents, for example, a pack of greeting cards, is readily in serted through the insert opening 35, the container expanding sufliciently to permit entrance thereof. The articles such as the greeting cards then spring apart sufficiently to extend the container as shown in Fig. l or the folds of the container give suiiicient resistance to draw the front and back members of the container into contact with the goods as shown in Fig. 2. After insertion, the closure flap is fol-ded over the insert opening and the gum thereon may be sealed to the fold of the container.

The form of invention illustrated in Fig. 4 is used in a similar manner, however, upon insertion of the goods, the intermediate scores move inwardly toward the sides in the same manner as the bottom in the rst described form of the invention. This form is perhaps more convenient to ll, particuiarly since the sides do not occupy space within the limits of the insert opening.

The forms of the invention shown in Figs. 9 and 10 are identical with the illustration in Fig.

4 with the exception that the overlapping ap portions 5 and 6 which form the front side of the container are respectively provided with a slot-like notch 40 that extends downwardly from the upper edge 9 at a point spaced from the edge 25 of the ap portion 5 and a transverse slot 4I spaced downwardly from the upper edge I@ of the flap A tongue 42 is thus provided in the iiap portion 5 which is left unsealed with respect to the flap portion 6. The tongue normally overlaps the slot 4| but is adapted to be projected therethrough as later described. The portion 31 of the closure flap has a slot-like opening 43 which'registers vwith the slot 4I when the closure fiap .is in closed position. After the container is filled and the closure ap folded over the insert opening, the flap portion 31 is passed between the tongue 42 and the underlying portion of the ap 6 with the flap portion 31 passing out through the notch-like slot 40 in overlying relation with the upper portion of the flap 5. In this position of the closure flap the opening 43 registers with the slot-like opening 4l and to complete locking of the closure flap, the upper edge of the tongue 42 is passed through the registering openings 4I and 43 so that it extends upwardly on the inner side of the iiap portions 5 and G as shown in Fig. 10. In this position the iclosure flap is securely retained in closed posiion.

The form of invention shown in Fig. 11 is the same as the form shown in Fig. 4 with the exception that the overlying naps 5 and 6 are provided with a metal fastener 44 having tongues 45 and 46 -that are adapted to extend through a slot-like opening 41 in the closure nap portion 31, after which the tongues are bent laterally over the flap portion as illustrated in the drawmg. n The form of the invention shown in Fig. 12 is of similar construction to the form shown 1n Figs. 4 and 11 with the exception that the closure flap portion 31 is provided with a button 48 secured by a fastening device 49 which also anchors one end of a string 5] that is extended completely around the container so that its free end5l may be Wrapped around the button to retain the closure nap in closed position.

In the form of the invention shown in Figs. 13 and 14 the width of the overlap portions 5 and 6 vare substantially the same so as to form a central seam 52 and the bottom sealing nap 53 extends upwardly to close proximity to the upper edges 54 and 55 of the iiap portions 5 and 6. In this form the bottom flap is secured to the overlapping flaps 5 and 6 by adhesive stripes 56 and 51 as shown in phantom in Fig. 13. This arrangement of the sealing flaps leaves the upper end of the bottom flap free and unattached to form a pocket between the adhesive stripes 56 and 51. The closure 58 has a flap portion 59 that is shaped to provide a central tongue 6U so that as the closure is folded over the insert opening, the tongue 50 is adapted to be extended between the overlapping portions 5 and 6 and into the pocket that is formed between the seals 56 and 51.

While I have illustrated a number of methods for securing the sealing flap, it is obvious that other securing means may be provided within the scope of the invention.

From the foregoing it is obvious that I have provided a container having the characteristics of an envelope in that it is completely formed 1n flat condition with side and bottom .aps

sealed together with the closure flap open ready for insertion without first having to be erected in the form of a box. It is also obvious that the container is constructed so that the contents is closely contained in orderly arrangement and that the container is adapted to expand to accommodate packs of various depths within the size limits of a given container.

What I claim and desire to secure by Letters Patent is:

A preformed folded envelope of the type adapted to be folded and gummed in a conventional envelope making machine and adapted to assume a flat condition when not in use and to form a box-like enclosure for receiving the contents to be placed therein, said envelope comprising a rectangular face portion, substantially rectangular side portions integrally extending from opposite side edges of saidface portion with scores at the side edges of the front portion providing hinge joints for said side portions, said side portions having rear edges parallel to the side edges of the front portion and each side portion having a single score line spaced from and parallel to the rear edge to provide a fold line dividing each side portion into sections adapted to lie flat, one section against the other, extensions of substantially rectangular form integrally extending from said rear edges with scores at said rear edges providing hinge joints thereat for said extensions with the latter substantially overlying one another and adhesively secured together at the overlapping portions to constitute a rear portion oi an area substantially coextensive with the area of said front portion, a bottom extension integral with the front portion at the bottom edge thereof with a score at said bottom edge providing a hinge joint thereat, said bottom extension having a rst score parallel to and spaced from said last mentioned hinge joint by an amount substantially corresponding to the spacing between said front and rear scores, the bottom extension having the portion thereof outwardly of said first score coextensive in width with the rear portion and overlying and adhesively secured to the lower area of the rear portion, said bottom extension having a second score intermediately of said first score and the score at the hinge joint for the bottom extension to provide a fold line dividing the bottom extension into sections adapted to lie flat, and a top extension integral with the front portion at the top edge thereof with a score at said top edge providing a hinge joint thereat, said top extension being coextensive in width with said front portion and having a single score parallel to and spaced from the hinge joint at the top edge by an amount substantially corresponding to the spacing between said first score and the hinge joint of said bottom extension with the bottom edge of the iront portion, the portion of the top extension outwardly of said single score adapted to overlie a substantial top area of the rearcportion and to be secured thereto so as to leave only a narrow margin between the top and bottom extensions, the portion of the top extension between the hinge joint at the top of the front portion and said single score being unscored so as to maintain the envelope in box-like form when the former portion is secured.


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

UNITED STATES PATENTS Number Name Date 404,298 Morgan May 28, 1889 646,638 Cutler Apr. 3, 1900 1,171,006 Trenchard, Jr. Feb. 8, 1916 1,532,316 Kaufman Apr. '7, 1925 1,985,111 Shafer et al Dec. 18, 1934 2,329,444 Snyder Sept. 14, 1934 2,337,199 Holy Dec, 21, 1943

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US404298 *Jan 12, 1888May 28, 1889 Envelope
US646638 *Jan 23, 1900Apr 3, 1900Harry M CutlerEnvelop.
US1171006 *Sep 24, 1915Feb 8, 1916Henry Trenchard JrEnvelop.
US1532316 *Jul 14, 1924Apr 7, 1925Kaufman Ferdinand MCollapsible box
US1985111 *Jul 29, 1932Dec 18, 1934Iowa Fiber Box CompanyLiner for shipping containers
US2329444 *May 29, 1941Sep 14, 1943Tom W HolmanExpansion shipping container
US2337199 *Jun 6, 1942Dec 21, 1943Container CorpCarton
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2945616 *Nov 23, 1956Jul 19, 1960Canada Envelope CompanyGusset type envelopes
US2945617 *Jun 3, 1957Jul 19, 1960Canada Envelope CompanyGusset type envelopes
US3063618 *Jul 17, 1959Nov 13, 1962Tension Envelope CorpExpanding envelope
US3073508 *Oct 12, 1959Jan 15, 1963Tension Envelope Corp Of KansaExpansion envelope with solid front and back panels
US3198420 *Dec 30, 1963Aug 3, 1965Tension Envelope CorpExpandable container
US3784088 *Apr 27, 1972Jan 8, 1974Rexham CorpConvertible hosiery package
US4549688 *Aug 26, 1983Oct 29, 1985Ozmon Laird MExpandable file folder
US5725310 *Sep 3, 1996Mar 10, 1998J & H Kuntz Enterprises, Ltd.Disposable article receiving device
US6227444 *Feb 17, 2000May 8, 2001Pama Enterprises, Inc.Expandable envelope construction
US20070170235 *Feb 18, 2005Jul 26, 2007Marco GhiniFolded blank for the manufacture of a rigid wrapper
WO2005082725A1 *Feb 18, 2005Sep 9, 2005Azionaria Costruzioni Acma SpaA folded blank for the manufacture of a rigid wrapper
U.S. Classification229/117.6
International ClassificationB65D5/64, B65D5/36, B65D5/66
Cooperative ClassificationB65D5/66, B65D5/3607
European ClassificationB65D5/66, B65D5/36B