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Publication numberUS702100 A
Publication typeGrant
Publication dateJun 10, 1902
Filing dateJan 8, 1902
Priority dateJan 8, 1902
Publication numberUS 702100 A, US 702100A, US-A-702100, US702100 A, US702100A
InventorsDavid Henry Keller
Original AssigneeDavid Henry Keller
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 702100 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

No. 702,!00. Patented lune I0, |902.



(Application led Jan. 8, 1902.) l' (No Modeln UNITED STATES lPATENT OFFICE.



SPECIFICATION forming part of IdettersPatent No. l702,100, dated June 10, 1902.

l.lpplimrtion led January 8, 1902. Serial No. 88,929. (No model) To all whom it may concer-71,: Be it known that I, DAVID HENRY KELLER, a citizen of the UnitedStates, residing at Louisville, in the county of Jefferson and State of Kentucky, have invented a new and useful Envelop, of which the following is a specification. Y

v My invention relates to certain improvements in that class of envelops which may 'io be opened and the letter or other contents removed by a single movement. l The invention is intended especially for use in connection with the form of envelop in general use, one of the-objects being to render possible the application of the invention to such envelops with very slight increase in the cost of manufacture.

With these andl other objects in view the invention consists in the novel construction zo and arrangementv ofV` vparts hereinafter described, illustratedv ,inv the accompanying drawings, and particularly pointed out in the appended claim.'

In the drawings, Figure 1 is a face view of an envelop constructed in accordance with my invention. Fig. 2 `is a face view of the same, illustrating the envelop in partly-open position. Fig. 3 is a detail perspective view of the envelop partly 'open in order to more` 3o clearly illustrate the construction thereof.

Similar numerals of reference are employed to indicate corresponding parts throughout the several views. l

The envelop l is of the character in general 3 5 use and may be made of any suitable material or of any suitable shape and size. lAta point near one end of the envelop and extending parallel with theedge thereof is a line of perforations 2, extending completely' 4o through the face and the rear ilaps of the envelop, the perforations being arranged at a suicient distance Afrom the' edge of the envelop to permit of the grasping of the end portion 3 between the thumb and forenger.

At the opposite end of the envelop the front and rear faces are sealedA together at the point indicated at 4. by the application of a suitable adhesive material, this being prefer ably arrangedin a slightly-curved line toward the open'ap in order to facilitate the intro- 5o duction of the letter. I

In opening the envelop the portion 3 is firmlyv grasped between the thumb andfforefinger, closing upon and holding the letterhead or other contents, and the opposite end, 5 5 where the adhesive material 4 is placed, is grasped between the thumb and forefinger of the other hand. A quick jerk will then cause 1 the portion 3 to separate from the main body of the envelop along the line of perforations, 6o leaving the portion 3 and the contents in one hand and the empty envelop in the other.

v The presence of the adhesive material 4 will prevent the catching of the letter at that end of the envelop, so that no strain whatever t will be exerted on the letter, and there will be no danger of tearing the same.

The line of perforations 2 may be arranged at either end of the envelop or along the upper or lower edge thereof, and the perfora- '7o ,I

tions may be arranged in a line parallel with the edge of the envelop or on an inclined or other line, or a series of weakening indentaf tions may be made in place of 'the perforations without departing from my invention. y7 5 the envelop, the front and rear faces of the 8o` opposite end of the envelop being sealed tot gether by an adhesive material 4 extending in a curved or inclined line toward the end of the open flapV of said envelop and thereby acting'as a guide to facilitate the entrance of 8 5 the letter or other contents.

In testimony that I claim the foregoing as my own Ihave hereto affixed my signature in the presence of two Witnesses.


i `Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3061174 *Jul 3, 1961Oct 30, 1962Joseph ZalkindPull-apart envelopes
US3379363 *May 20, 1966Apr 23, 1968Us Envelope CoStuffed sealed envelopes
US4403696 *Apr 19, 1979Sep 13, 1983I-Tron, Inc.Envelope
US4775095 *Jan 5, 1987Oct 4, 1988Emmott Gary GRemailable envelope
US8033473Apr 20, 2007Oct 11, 2011Visa U.S.A. Inc.Packaging for a portable consumer device
US20040155106 *Nov 5, 2003Aug 12, 2004Schmidtberg Rupert A.Methods and apparatus for communicating condition information associated with an item
US20080257966 *Apr 20, 2007Oct 23, 2008Chris BrittPackaging for a portable consumer device
Cooperative ClassificationY10S206/804, B65D27/34