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Publication numberUS1369277 A
Publication typeGrant
Publication dateFeb 22, 1921
Filing dateJun 12, 1920
Priority dateJun 12, 1920
Publication numberUS 1369277 A, US 1369277A, US-A-1369277, US1369277 A, US1369277A
InventorsBernard Lovie, Hugo Hahn
Original AssigneeBernard Lovie, Hugo Hahn
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1369277 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


SAFETY ENVELOP. APPLICATION FILED JUNE 12. 1920 Patented Feb. 22, 1921.




1,369,277. Patented Feb. 22, 1921.


Patented Feb. 22, 1921.





Specification of Letters Patent. Patented F b 22 '1921 Application filed June 12,1920. Serial No. 388,639.

To all whom it may concern:

Be it known that we, HUGO HAHN and BERNARD LovIE, citizens of the United States and Roumania, respectively, and residents I of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Safety-Envelops, of which the following is a specification.

The present invention relates to envelops and more particularly to safety envelops.

The main object of the invention is to construct an envelop that is just as readily and easily sealed, as an ordinary envelop, but cannot be opened without mutilating the same, thereby affording effective protection of the envelop against being surreptitiously. opened and rescaled, without being so marred or mutilated as to make detection certain.

Another object of the invention is to produce an envelop of the type mentioned which is capable of manufacture on a commercial scale, or in other words one which is not so difficult to make as to be beyond the reasonable cost of such a device.

With these and other objects in view, which will more fully appear as the nature of the invention is better understood, the

same consists in the combination, arrange-- ment and construction of partshereinafter described, pointed out in the appended claims and illustrated in the accompanying drawings, it being undestood that many changes may be made in the size and proportion of the several parts and details of construction within the scope of the appended claims, without departing from the'spirit or sacrificing any of the advantages of the invention.

A few of the many possible embodiments of the invention are illustrated in the accompanying drawings, in which Figure 1 is a rear elevation of an envelop constructed in accordance with the present invention; and Figs. 2 to 8, inclusive, are similar views of modified constructions.

Referring now first to -Fig. 1 of the drawings, an envelop of any suitable material and size is shown, the envelop being provided with a sealing flap 15. The sealing flap 15 overlaps the end andbottom flaps,

in the ordinary manner.

Thus far described, the envelop does not differ from those here tofore in use.

The safety device, whereby it is practically impossible to detach thesealing flap without mutilating the same, is formed upon the said sealing flap.- For this purpose the said sealing flap is provided substantially along its entire length, in parallel relation to its free edge, with two spaced scored lines 16, which scored lines are interrupted at various points, as shown, and at each point of interruption the two lines are connected by scored lines 20, thereby forming boxes 21. In the boxes are printed words 22, to give instructions for the return of the envelop in case of non-delivery.

By the provision of the weakened portion of the flap, it is practically impossible, when once sealed, to disengage the gummed portion of the sealing flap from the other fla s thereof, without mutilating the same. T e weakened portion of the sealing flap separates easily from the body portion of the latter, thus indicating that the envelop has been tampered with.

In the modification shown in Fig. 2 of the drawings, the weakened portion of the sealing flap is even more sub-divided into boxes, than in the construction shown in Fig. 1 of the drawing. Some of these boxes are so small as to afford room for a single printed letter, denoted by the numeral 23.

In the modifications shown in Figs. 3 to 5, inclusive, a legend 26 is provided upon the sealing, flaps in parallel relation to the free edges thereof, the letters 27 grouped to form the words, being each formed by two spaced scored lines 28, so that each letter constitutes a weakened portion of the flap. Between the 'envelo has been tampered with.

In t e construction shown in Fig. 6 of the drawings, weakened portions 30 are formed by scored lines 31in parallel relation to the free edge of the sealin fla said weakened portions being space an serve to receive certain printed matter, which with the printed matter 32 adjacent sai weakened portions, gives directions for th return of the envelop. The operation of this device isobvious from the foregoin 1' The modification illustrated in Fig. 7 of the drawings differs from the one disclosed in Fig. 4, in that the boxes 29 thereof are formed by printed lines, while in Fig. 4 the boxes 29 are provided by scored lines. The operation of this constructi 11 needs no further explanation. l

The modification shown in Fig. 8 diifers from the one illustrated in Fig. 4:, in that the letters 27 of the legend thereon are constituted by perforations 33. These perforations present numerous points, which cannot be separated from the already sealed envelop' without detection.

The several constructions herein described are all alike in one respect, towit: The sealing flaps are provided in parallel relation to and slightly spaced from the free edges thereof with weakened portions, in alinement with the ed section of the same.

The dies, forming the scored lines and scored or perforated letters, may carry ink so as to color the said lines and letters.

What we claim is 1. An envelop including a flap bearing characters adjacent its free edge, and ex-.

tending substantially the entire length of the free edge, each of said characters being formed by spaced weakened lines.

2. An envelopincluding a flap bearing .characters adjacent its free edge grouped to form words, each of said characters being formed by a series of spaced perforated lines,

the free edge of the flap being coated with an adhesive whereby the characters are adapted'to'remain on the envelop if the flap is lifted after sealing.

3. An envelop including a flap bearing characters adjacent its free edge grouped to form words, each of said characters being formed by a series of spaced perforated lines,

certain of the words being separated by I "blank spaces, said spaces being bounded by weakened lines.

4. An envelop including a flap, a plurality of weakened portions arranged adjacent the free edge of the flap, said weakened portions being wholly bounded by scored lines and adapted to receive a legend, said weakened portions taken together extending substantially the entire length of the flap.

Signed at New York, in the county of New York and State of New York this 13th day of March A. D. 1920.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4709396 *Dec 24, 1985Nov 24, 1987John H. Harland CompanyTamper-evident envelope with indicia underlying cohesive layers
U.S. Classification229/81
International ClassificationB65D27/30, B65D27/12
Cooperative ClassificationB65D27/30
European ClassificationB65D27/30