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EP0136682A2 - Einfach zu öffnender Umschlag - Google Patents

Einfach zu öffnender Umschlag Download PDF

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Publication number
EP0136682A2
EP0136682A2 EP84111666A EP84111666A EP0136682A2 EP 0136682 A2 EP0136682 A2 EP 0136682A2 EP 84111666 A EP84111666 A EP 84111666A EP 84111666 A EP84111666 A EP 84111666A EP 0136682 A2 EP0136682 A2 EP 0136682A2
Authority
EP
European Patent Office
Prior art keywords
envelope
flap
paper
string
fold line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84111666A
Other languages
English (en)
French (fr)
Other versions
EP0136682A3 (de
Inventor
Etienne Lahos
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0136682A2 publication Critical patent/EP0136682A2/de
Publication of EP0136682A3 publication Critical patent/EP0136682A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D27/00—Envelopes or like essentially-rectangular flexible containers for postal or other purposes having no structural provision for thickness of contents
    • B65D27/32—Opening devices incorporated during envelope manufacture
    • B65D27/38—Tearing-strings or -strips

Definitions

  • This invention relates to improvements in paper containers with sealable flaps, and particularly to envelopes having means for easy access.
  • the prime object of this invention is therefore to provide a simple, efficient and easy-to-apply string on the inner side of one of the fold lines of an envelope for the opening of this envelope.
  • Another object of the invention is to provide means to facilitate initiating the envelope-opening operation.
  • Another object of the invention is to provide a self-opening envelope which is inexpensive to manufacture and which can be handled by post office mail-sorting equipment.
  • an envelope provided with a string assembly disposed along the line of fold of a sealable flap of the envelope at the inner surface, and adhered into position along the entire length of the string by a coating of a pressure adhesive.
  • a paper weakening is provided at one envelope corner, so that pulling outwardly from this paper weakening will tear the envelope and will open it along the string.
  • a conventional form of paper envelope is shown, consisting of a front and a rear panels 10, 12 and a sealing flap 14.
  • Front panel 10 is connected to rear panel 12 by means of fold lines 16, one of which is shown in Fig. 7, whereas flap 14 is connected to front panel 10 by means of fold line 18.
  • the flap 14 has on its inner surface, and outwardly of the fold line 18, an adhesive coating 20, such as wettable glue, for sealingly connecting the inner surface of flap 14 with the outer surface of rear panel 12, when the flap 14 is to be closed.
  • a first embodiment of the invention including a string assembly 22 and an envelope indentation 24 as a paper weakening.
  • the string assembly 22 is disposed along and inwardly of the fold line 18.
  • the string assembly 22 consists of one or more monofilaments 26, of synthetic resin, adhered side by side to one side of a flexible strip 28 of synthetic material by a coating of a pressure adhesive 30, which also serves to adhere the string assembly 22 to the paper of the envelope.
  • Coating 30 is coextensive with monofilaments 26 and strip 28.
  • Monofilaments 26 can be replaced by one or more strings made of twisted fibers. Therefore, the string assembly 22 is simply pressed into position onto the fold line 18
  • the string assembly 22 is coextensive with the lateral flap 14 and adheres to the paper over its entire length.
  • the string assembly 22 is cut at both ends flush with fold lines 16, so as not to protrude from the sealed envelope.
  • the indentation 24 is made by a punch-machine on one corner of the envelope, to decrease the original thickness of each of the three layers of paper by about one-half. This produces a groove extending parallel to but at a distance from fold line 18 and the adjacent fold line 16, and determining a tearable portion 34. Indentation 24 produces a paper weakening sufficient to allow easy tearing of portion 34.
  • the envelope Upon holding the opposite end of the envelope with one hand and holding portion 34 of the envelope with the other hand, and pulling in the direction indicated by arrow A, the envelope will tear along dotted lines 36. The envelope will therefore open along the string assembly 22 following arrows B. Portion 34 remains adhered to string assembly 22 and the latter acts as a knife edge to tear open the envelope along fold line 18; it remains attached to portion 34 but becomes detached from the envelope.
  • the indentation 24 is indicated by an ovoidal colored circle 38 outwardly surrounding the indentation 24, and by a large, colored arrow 40 directed towards the circle 38.
  • the first embodiment does not form any opening within the sealed envelope and cannot become inflated by pressurized air used in mail-sorting equipment of Government Postal services.
  • An elongated hole 42 is made at one corner of the envelope, parallel to the fold line 18, and through the front wall 10, the rear wall 12, and the sealing flap 14, and inwardly of the string assembly 22.
  • the procedure to open the envelope is the same as for the first embodiment.
  • the hole 42 may be indicated by the arrow 40.
  • a third embodiment is shown in Fig. 8 and 9.
  • Two adjacent and mutually-inclined slits 44, 46 are made at one corner of the envelope, again through the front wall 10, the rear wall 12 and the lateral flap 14 and inwardly of the fold line 18.
  • the envelope may be opened by tearing a tearable portion 48, inbetween slits 44, 46 and fold line 18, that is similar to portion 34 of the first embodiment, and following the procedure already described in previous embodiments with the string assembly 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
EP84111666A 1983-09-30 1984-09-28 Einfach zu öffnender Umschlag Withdrawn EP0136682A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA438171 1983-09-30
CA438171 1983-09-30

Publications (2)

Publication Number Publication Date
EP0136682A2 true EP0136682A2 (de) 1985-04-10
EP0136682A3 EP0136682A3 (de) 1986-06-11

Family

ID=4126202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111666A Withdrawn EP0136682A3 (de) 1983-09-30 1984-09-28 Einfach zu öffnender Umschlag

Country Status (1)

Country Link
EP (1) EP0136682A3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234736A (en) * 1989-08-08 1991-02-13 Alain Gabriel Bouvier Opening envelopes

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH138892A (de) * 1929-05-14 1930-03-31 Berger Hans Briefkuvert.
US1930299A (en) * 1932-04-30 1933-10-10 Bertha Adams Envelope opening means
CH216173A (de) * 1941-02-19 1941-08-15 Grob Grimm A Einrichtung an Briefumschlägen zur Erleichterung des Öffnens derselben.
GB919250A (en) * 1960-03-07 1963-02-20 Sesame Envelopes Ltd Envelope and opening means therefor
US3370782A (en) * 1966-03-23 1968-02-27 John H. Hickman Envelope and opening means therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH138892A (de) * 1929-05-14 1930-03-31 Berger Hans Briefkuvert.
US1930299A (en) * 1932-04-30 1933-10-10 Bertha Adams Envelope opening means
CH216173A (de) * 1941-02-19 1941-08-15 Grob Grimm A Einrichtung an Briefumschlägen zur Erleichterung des Öffnens derselben.
GB919250A (en) * 1960-03-07 1963-02-20 Sesame Envelopes Ltd Envelope and opening means therefor
US3370782A (en) * 1966-03-23 1968-02-27 John H. Hickman Envelope and opening means therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2234736A (en) * 1989-08-08 1991-02-13 Alain Gabriel Bouvier Opening envelopes

Also Published As

Publication number Publication date
EP0136682A3 (de) 1986-06-11

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Effective date: 19870212