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Publication numberUS2819010 A
Publication typeGrant
Publication dateJan 7, 1958
Filing dateMay 24, 1954
Priority dateMay 24, 1954
Publication numberUS 2819010 A, US 2819010A, US-A-2819010, US2819010 A, US2819010A
InventorsJose Amiguet
Original AssigneeJose Amiguet
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Sealing envelopes
US 2819010 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

United States PatentOfifice 2,819,010 Patented Jan. 7, 1958 SEALING ENVELOPES Jose Amiguet, Havana, Guba Application May 24, 1954, Serial No. 432,001 4 Claims. (Cl. 229-62) My present invention relates to scalable envelopes of flexible: sheet material, such as paper, cloth, cellophane or the like. i

It has heretofore been very difiicult to provide strong and air-tight seals on envelopes or bags of the character referred to. Thus, whereas in the case of paper bags it is quite customary to provide gummed flaps that may be folded over to join the two sides of the bag together, this method is not readily applicable to certain wrapping materials, such as cellophane, which will not stay folded unless placed in such condition by heat and pressure with the aid of suitable apparatus. Although cellophane has considerable advantages over paper as a wrapping material, including transparency and substantially complete airtightness, its use for this purpose has been limited heretofore, for the reasons indicated, to articles wrapped at the factory or packing plant.

It is, therefore, an object of this invention to provide a method of sealing an envelope of cellophane or, indeed, any flexible sheet material in such manner that the contents thereof are safe from spillage, contamination, contact with insects and so forth.

It is another object of my invention to provide a method of sealing an envelope in the aforedescribed manner by a quick, simple and dependable operation and without the need for special equipment.

It is a further object of the present invention to provide an envelope of flexible sheet material, preferably cellophane, having means for quickly and efliciently sealing together a pair of lips or marginal portions thereof defining the mouth of the envelope.

In accordance with the invention, I provide a marginal envelope portion with a non-hardening adhesive material and a protective strip of flexible material bonded to it by means of said adhesive material, removal of the protective strip enabling this marginal portion to be adhesively pressed against a similar marginal portion to close the mouth of the envelope. In a preferred embodiment, both lips of the envelope mouth are originally provided with adhesive and protective strips.

According to another feature of my invention, the protective strip or strips are provided with bent-over ends engageable by the fingers of the user to facilitate removal from the envelope mouth. Similarly, the marginal portions of the envelope may have extensions with or without adhesive to be grasped by the user while the protective strips are being pulled from them.

The invention will be described in greater detail with reference to the accompanying drawing wherein:

Fig. 1 is an elevation (parts broken away) of an envelope embodying the invention;

Fig. 2 is a fragmentary section taken on the line II-II of Fig. 1;

Fig. 3 is a top plan view of the envelope of Figs. 1 and 2 prior to sealing; and

Fig. 4 is a view similar to Fig. 1, showing a modification.

In Figs. 1-3 there is shown an envelope according to the invention in the form of a cellophane bag having front and rear portions 1, 2 joined together at the bottom and the two sides to define a bag open at the top. Two strips 3a, 3b are bonded to the upper edges of envelope portions 1, 2, respectively, and extend upwardly beyond these portions, the exposed inner faces of these strips being covered with a non-hardening adhesive resin of the type used, for example, in commercial cellophane tape. One end of each strip 3a, 3b extends laterally beyond the envelope portions 1, 2 to form a lug 7a, 7b, respectively, from which the adhesive 4 may be omitted as shown. A second, protective strip 5a, 5b, of a width equal to that of the exposed inner faces of strips 3a, 3b but of greater length than the latter, extends along each of these inner faces and is removably secured thereto by the adhesive 4; the ends of these protective strips 5a, 5b are bent over, as shown at 6a, 6b in Figs. 1 and 3, so as lie within the mouth of the bag where they may be easily gripped by the fingers of the user.

After the bag has been filled with goods of any description, the user may quickly and easily seal it by grasping the lugs 7a, 7b with the fingers of one hand and the ends 6a, 6b with those of the other hand, then pulling these ends 6a, 6b away from the lugs 7a, 7b (i. e., to the left in Figs. 1 and 3) so as to detach the protective strips 5a, 5b from the marginal strips 3a, 3b. This action will draw the inner, adhesive-bearing faces of strips 3a, 3b into contact with each other and join them together; if necessary, the fingers of one hand may be run with slight pressure along the strips 3a, 3b to insure a perfect seal after the protective strips 5a, 513 have been fully removed. When the bag is to be reopened, the top of portions 1, 2 may be ripped or cut off or the strips 3a, 317 may be pulled apart at the lugs 7a, 7b which are free from adhesive.

In Fig. 4 I have shown a modification in which the strips 3a, 3b are omitted and the adhesive 4 is applied directly to strip-like marginal areas along the upper inner edges of bag portions 1', 2. Lug-shaped extensions such as 7 are integral with portions 1', 2' and protective strips such as 5', having bent-over extremities 6, engage the marginal areas bearing the adhesive. The operation is the same as in the preceding embodiment.

The invention is, of course, not limited to the specific embodiments described and illustrated. Thus, it will be apparent that only a single bag portion, e. g. the rear portion 2 of Fig. 4, may be provided with adhesive 4 and a protective strip 5, removal of this one strip then euabling the adhesive-bearing marginal area of that portion to engage the corresponding marginal area of front portion 1'. With the preferred symmetrical arrangement, however, the marginal areas or lips of the bag will be drawn together virtually automatically as the two protective strips are pulled oil? in the manner disclosed. it will also be apparent that whereas the elements of the bag closure itself, such as the strips 3a, 3b and 5a, 5b, are advantageously made of cellophane or equivalent smooth-surfaced material compatible with adhesive resins, the body of the envelope 1, 2 (or 1, 2) may, if desired, be made of paper, cloth, or other substances, instead of cellophane, depending on whether or not protection of the contents from air and/ or moisture is required.

From the foregoing it will be seen that the invention lends itself readily to the wrapping of sandwiches, pies, seasonings and other edibles for outings, beach parties and so on, and in particular also to the packing of seeds, powdered chemicals and other comminuted substances requiring a spillproof seal. It should be understood, however, that these uses are enumerated merely by way of example; moreover, modifications and adaptations of the method and the arrangement herein disclosed are f jpj, "9,819,010

a 3 possible'without departing from the spirit and scope of the invention as defined in the appended claims.

I claim:

1. A scalable envelope comprising a front portion and a rear portion provided with respective lip portions together defining a mouth, a non-hardening adhesive on the insides of said lip portions, and a pair of protective strips intermediate said lip portions each covering the adhesive on a respective one of said lip portions and removably secured thereto by said adhesive, said protective strips being provided with registered unattached extremities folded over and lying next to each other between the main portions of said protective strips, said lip portions being provided with lugs extending laterally beyond said front and rear portions adjacent said folded-over extremities, said extremities facing away from said lugs.

2. A sealable envelope according to claim 1, wherein said lugs are free from adhesive.

3. A scalable envelope comprising a front portion and a rear portion provided with respective lip portions to gether defining a mouth, a pair of marginal strips externally secured to said lip portions, respectively, and projecting beyond the latter all around said mouth, a

r 4 non-hardening adhesive on the inner faces of the projecting parts of said marginal strips, and a pair of protective strips intermediate said marginal strips each covering the adhesive on a respective one of said inner faces and removably secured thereto by said adhesive, said marginal strips being provided with lugs extending laterally beyond said lip portions, said protective strips being provided with folded-over extremities adjacent said lugs, said extremities facing away from said lugs and lying unattached alongside each other between the main portions of said protective strips. it

4. A scalable envelope according to claim 3, wherein said lugs are free from adhesive.

References (iited in the file of this patent UNITED STATES PATENTS 1,492,960 Chambers May 6, 1924 2,404,337 Williams July 16, 1946 "2,409,100 5 Brady Oct. 8, 1946 2,483,604 Abramson Oct. 4, 1949 2,643,049 Bartelt June 23, 1953

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1492960 *Dec 12, 1922May 6, 1924Chambers James SSack valve and tie
US2404337 *Apr 13, 1944Jul 16, 1946Bemis Bro Bag CoBag closure means and method
US2409100 *Nov 1, 1943Oct 8, 1946Bemis Bro Bag CoBag structure and process of manufacture
US2483604 *Jun 24, 1944Oct 4, 1949Central States Paper & Bag ComContainer and method of making the same
US2643049 *Sep 11, 1951Jun 23, 1953Bartelt Harold LQuick opening bag
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2991001 *Apr 6, 1959Jul 4, 1961Hughes William LResealable container
US3001689 *Oct 24, 1958Sep 26, 1961Dow Chemical CoMouth closure means for bags comprising heat sealable material
US3036756 *Jan 11, 1960May 29, 1962Lieschke Wolfgang GContainer closure
US3085738 *Aug 9, 1960Apr 16, 1963Edward BokFlat bag with an adhesive seal
US3092303 *Oct 5, 1961Jun 4, 1963Bemis Bro Bag CoBag
US3097788 *Feb 23, 1962Jul 16, 1963Nichols Robert GReenforced bags
US3106329 *Mar 14, 1961Oct 8, 1963Chemical Sales IncDispenser package
US3143278 *Nov 16, 1962Aug 4, 1964Hiebert Marie ABag
US3147903 *May 1, 1961Sep 8, 1964Chemicals Sales IncDispenser package
US3167241 *Feb 25, 1963Jan 26, 1965Bemis Bro Bag CoBag
US3346883 *Oct 21, 1965Oct 17, 1967Louise SandlerReceptacles
US3534901 *Dec 9, 1968Oct 20, 1970Dow Chemical CoBag construction
US4120445 *May 12, 1976Oct 17, 1978Ludlow CorporationInformation-bearing article for conveying information which cannot be surreptitiously detected
US4301925 *Dec 28, 1979Nov 24, 1981Bemis Company, Inc.Bag with opening and reclosing feature
US4653113 *Aug 20, 1986Mar 24, 1987Techsearch Inc.Security bag
US4690322 *Oct 31, 1986Sep 1, 1987Burns Joseph EResealable envelope
US4709396 *Dec 24, 1985Nov 24, 1987John H. Harland CompanyTamper-evident envelope with indicia underlying cohesive layers
US4836594 *Mar 15, 1988Jun 6, 1989Franz SpreiterApparatus for hygienically collecting feces and method of manufacturing same
US4932791 *May 11, 1989Jun 12, 1990Uniflex, Inc.Envelope closure seal and method
US4977003 *Feb 20, 1985Dec 11, 1990Minnesota Mining And Manufacturing CompanyNontacky acrylonitrile/butadiene adhesive tape
US5045386 *Feb 1, 1989Sep 3, 1991Minnesota Mining And Manufacturing CompanyPressure-sensitive film composite having improved adhesion to plasticized vinyl substrates
US5123535 *Jan 24, 1991Jun 23, 1992Minnesota Mining And Manufacturing CompanySterile holder for x-ray cassettes
US5205649 *Nov 9, 1990Apr 27, 1993Trigon Packaging CorporationLeakproof packaging
US5378066 *May 28, 1993Jan 3, 1995Greenbrier Innovations, Inc.Opening device for flexible packaging
US5918983 *Nov 8, 1996Jul 6, 1999Control Paper Co., Inc.Security envelope
US6012844 *Feb 16, 1999Jan 11, 2000Huseman; David C.Selectively closeable plastic film bag
US6267505 *Feb 8, 1999Jul 31, 2001Learoyd Packaging Ltd.Sealable security bag
US7240443 *Oct 1, 2003Jul 10, 2007Aha! Concepts Inc.Information organization product and method
US7921582 *Apr 12, 2011Aha! Concepts, Inc.Information organization product and method
US20050072033 *Oct 1, 2003Apr 7, 2005Theodore NathansonInformation organization product and method
US20050258220 *May 24, 2004Nov 24, 2005Angel GerenaMailer 2000
US20090100730 *Jul 9, 2007Apr 23, 2009Aha! Concepts Inc.Information Organization Product and Method
US20100183247 *Jun 17, 2008Jul 22, 2010Charles Neil BrownProtective container
US20140013713 *Jul 10, 2012Jan 16, 2014Dawn L. BoettcherConvenient disposal container
USRE33173 *May 31, 1988Feb 27, 1990Trigon Packaging Systems (Nz) Ltd.Envelope with pouch and method of manufacture thereof
WO1994001345A1 *Jul 6, 1993Jan 20, 1994Fassomat S.A.Protective package
Classifications
U.S. Classification383/93, D19/3, 383/209, 229/80, 53/423, 383/200, 383/202
International ClassificationB65D33/20, B65D33/18
Cooperative ClassificationB65D33/20
European ClassificationB65D33/20