US873416A - Envelop. - Google Patents

Envelop. Download PDF

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Publication number
US873416A
US873416A US36561707A US1907365617A US873416A US 873416 A US873416 A US 873416A US 36561707 A US36561707 A US 36561707A US 1907365617 A US1907365617 A US 1907365617A US 873416 A US873416 A US 873416A
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United States
Prior art keywords
envelop
slot
flap
sealing engagement
tongues
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.)
Expired - Lifetime
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US36561707A
Inventor
Benjamin Davis
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Individual
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Individual
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Publication date
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Priority to US36561707A priority Critical patent/US873416A/en
Application granted granted Critical
Publication of US873416A publication Critical patent/US873416A/en
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Expired - Lifetime 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 containers for postal or other purposes having no structural provision for thickness of contents
    • B65D27/12—Closures
    • B65D27/20—Closures using self-locking integral or attached elements
    • B65D27/22—Tongue-and-slot or like closures; Tuck-in flaps

Definitions

  • This invention relates to envelops.
  • the object of the invention is to provide an exceedingly simple, inexpensive, durable and efiioient envelop embodying such characteristics that it cannot be opened without detection.
  • Figure 1 is a plan view of the blank from which my improved envelop is formed.
  • Fig. 2 is a view of the back of the envelop in its sealed condition.
  • Fig. 3 is a transverse sectional view.
  • the reference character 1 indicates the front or address side of the envelop provided at its ends with the end flaps 2 and 3 designed to be folded over on the front or address side of the envelop with their meeting edges overlapping and sealed by any suitable adhesive substance.
  • the reference character 4 indicates the back flap of the envelop designed to overlap the end flaps and be sealed thereto along its edges in the usual manner.
  • This back flap is provided with a slot 5 having a recess 6 along its lower edge to facilitate the insertion through the slot of the tapering, elongated, intermediate tongue 7 of the closure flap 8,
  • the tongues have adhesive substance upon their inner faces andthat the intermediate tongue passes through the slot 5 for sealing engagement with a part of the envelop within the back of the latter, while the end tongues 9 have sealing engagement with the outer face of the back flap 9 at the ends of the slot.
  • the edge of the sealing flap is provided with the usual adhesive .substance.
  • An envelop comprising overlapping end flaps, a back flap overlapping the end flaps and provided with a slot having a recess in its under edge intermediate the ends of the slot, the upper edge of the slot being straight, and a closure flap having three alining tongues, the intermediate tongue being considerably longer than the end tongues and formed for insertion through said slot for sealing engagement with the backs of the end flaps, and the end tongues being arranged for sealing engagement with the outer face of the back flap only at opposite ends of said slot.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Description

UNITED STATES PATENT OFFICE.
EiWELoP.
Specification of Letters Patent.
Patented Dec. 10, 1907.
Application filed March 30.1907. Serial No. 365-617- To all whom it may concern:
Be it known that I, BENJAMIN DAVIS, a citizen of the United States, residing at N escs uehoning, in the county of Carbon and tate of Pennsylvania, have invented certain new and useful Improvements in Envelops, of which the following is a specification.
This invention relates to envelops.
The object of the invention is to provide an exceedingly simple, inexpensive, durable and efiioient envelop embodying such characteristics that it cannot be opened without detection.
With the above and other objects in view, the present invention consists in the combination and arrangements of parts hereinafter more fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes may be made in the form, proportion, size and minor details without departing from the spirit or sacrificing any ofthe advantages of the invention.
In the drawings:Figure 1 is a plan view of the blank from which my improved envelop is formed. Fig. 2 is a view of the back of the envelop in its sealed condition. Fig. 3 is a transverse sectional view.
Referring now more particularly to the accompanying drawings, the reference character 1 indicates the front or address side of the envelop provided at its ends with the end flaps 2 and 3 designed to be folded over on the front or address side of the envelop with their meeting edges overlapping and sealed by any suitable adhesive substance.
The reference character 4 indicates the back flap of the envelop designed to overlap the end flaps and be sealed thereto along its edges in the usual manner. This back flap is provided with a slot 5 having a recess 6 along its lower edge to facilitate the insertion through the slot of the tapering, elongated, intermediate tongue 7 of the closure flap 8,
there being short end tongues 9 upon opposite sides of the intermediate flap 7 for sealing engagement with the exterior of the back flap at the ends of said slot 5. mediate flap 7 does not have sealing engagement with the inner face of the back flap 4,
but it does have sealing engagement with the outer face of the overlapping end flaps 2 and 3.
From the foregoing it will be understood that the tongues have adhesive substance upon their inner faces andthat the intermediate tongue passes through the slot 5 for sealing engagement with a part of the envelop within the back of the latter, while the end tongues 9 have sealing engagement with the outer face of the back flap 9 at the ends of the slot. Of course, the edge of the sealing flap is provided with the usual adhesive .substance.
I claim for my invention that in the event of an unauthorized person attempting to unseal the same the envelop would be torn, and by reason of the intermediate tongue 7 passing through the slot 5, a steaming operation of the envelop will not eifect an unsealing of the envelop, as is the manner frequently accomplished in the use of an ordinary envelop when placed over steam.
What is claimed is An envelop comprising overlapping end flaps, a back flap overlapping the end flaps and provided with a slot having a recess in its under edge intermediate the ends of the slot, the upper edge of the slot being straight, and a closure flap having three alining tongues, the intermediate tongue being considerably longer than the end tongues and formed for insertion through said slot for sealing engagement with the backs of the end flaps, and the end tongues being arranged for sealing engagement with the outer face of the back flap only at opposite ends of said slot. In testimony whereof I affix my signature, in presence of two wintesses.
BENJAMIN DAVIS.
Witnesses DAVID TREVOSSON, OHAs. MARSDEN.
The inter-
US36561707A 1907-03-30 1907-03-30 Envelop. Expired - Lifetime US873416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US36561707A US873416A (en) 1907-03-30 1907-03-30 Envelop.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36561707A US873416A (en) 1907-03-30 1907-03-30 Envelop.

Publications (1)

Publication Number Publication Date
US873416A true US873416A (en) 1907-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
US36561707A Expired - Lifetime US873416A (en) 1907-03-30 1907-03-30 Envelop.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437934A (en) * 1945-04-14 1948-03-16 Rand Mcnally & Co Closure
US6431433B2 (en) * 1998-09-19 2002-08-13 Beiersdorf Aktiengesellschaft Cardboard pocket pack with a concealed tamperproof seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437934A (en) * 1945-04-14 1948-03-16 Rand Mcnally & Co Closure
US6431433B2 (en) * 1998-09-19 2002-08-13 Beiersdorf Aktiengesellschaft Cardboard pocket pack with a concealed tamperproof seal

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