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Número de publicaciónUS3806024 A
Tipo de publicaciónConcesión
Fecha de publicación23 Abr 1974
Fecha de presentación14 Feb 1972
Fecha de prioridad14 Feb 1972
Número de publicaciónUS 3806024 A, US 3806024A, US-A-3806024, US3806024 A, US3806024A
InventoresMarchesani C
Cesionario originalColgate Palmolive Co
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Adhesive closure for plastic film bags
US 3806024 A
Resumen
A container comprising a bag having a closed bottom and a top provided with an open mouth. A lock band is secured TO the bag at the bottom thereof and extends along the middle of the bag to at least the top thereof. A coating of pressure sensitive adhesive is provided on the face of the lock band adjacent the bag.
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Descripción  (El texto procesado por OCR puede contener errores)

United States Patent 1191 Marchesani Apr. 23, 1974 ADHESIVE CLOSURE FOR PLASTIC FILM BAGS [75] Inventor: Cesare N. Marchesani, Union City,

[73] Assignee: Colgate-Palmolive Company, New

York, NY.

[22] Filed: Feb. 14, 1972 [21] Appl. No.: 226,060

52 us. on. 229/62 51 Int. Cl B65d 33/00 58 Field at Search 229/62, 63, 48 SB, 51 WE; 150/3, 43

[56] References Cited UNITED STATES PATENTS 273,902 3/1883 Shirley 229/62 X 3,565,738 2/1971 Kirkpatrick.

2,510,120 6/1950 Leander 229/48 SB UX 3,047,206 7/1962 Monahan 229/62 X 3,107,842 l0/l963 Guilfoyle 229/62 3,301,466 1/1967 Perino 229/62 599,219 2/1898 Bunker 229/62 FOREIGN PATENTS OR APPLICATIONS 27,085 12/1904 Great Britain 229/62 Primary Examiner-Donald F. Norton Attorney, Agent, or Firm-Herbert S. Sylvester; Murray M. Grill; Normon Blumenkopf 5 7] ABSTRACT A container comprising a bag having a closed bottom and a top provided with an open mouth. A lock band is secured TO the bag at the bottom thereof and extends along the middle of the bag to at least the top thereof. A coating of pressure sensitive adhesive is provided on the face of the lock band adjacent the bag.

8 Claims, 8 Drawing Figures PATENTEDAPR 23 \924 ADHESIVE CLOSURE FOR PLASTIC FILM BAGS This invention relates to containers, such as those especially adapted for packaging perishable foodstuffs, including sandwiches and the like, and of the type generally known as poly-bags and which have been sold under the trademark Baggies,and preferably made out of thin transparent synthetic plastic film.

In the past various types of containers made of thin transparent synthetic plastic film, such as polyethylene film, and known generally as poly-bags have been manufactured. Various types of ties have been used to close these bags in a substantially air-tight manner. However, because of the fact that various size foodstuffs are usu ally inserted in these bags, different size ties have been needed. When these ties are made-separately from the bags, they often become misplaced or'lost and are no longer available. The present invention provides for a container in the form of a poly-bag having a lock band secured to the bottom thereof and permanently bonded or heat sealed thereto with the other end remaining free. In this manner the lock band may be secured across the folded section of the bag after it has been arranged to tightly embrace the sandwich or foodstuff therein.

It is, therefore, an object of the present invention to provide a container having a lock band which is secured to the bottom of a poly-bag and extends along the middle thereof perpendicular to the bottom and to the mouth.

A further object of the invention resides in the provision of a lock band which may be constructed out of readily available materials and which may vary in size or dimension while eliminating the need for expensive separate tie bands. V

Another object of the invention resides in the provision of a container such as a poly-bag which employs a lock band for facilitating the opening the reclosing thereof and which may be manufactured in a manner so as to be readily adapted for mass production while increasing the functional volume of the bag and allowing the odd shaped item placed in the container to retain its normal shape.

Stillfurther objects and features of this invention reside in the provision of an adhesive closure for plastic film bags which employs a lock band having a suitable coating of pressure sensitive adhesive thereon and which may be dispensed from a roll or stack of bags with each bag.

These, together with the various ancillary objects and features of this invention, which will become apparent as the following description proceeds, are attained by this adhesive closure for plastic film bags, preferred embodiments of which are illustrated in the accompanying drawing, by way of example only, wherein:

FIG. 1 is an exploded perspective view of a container in accordance with the present invention showing the lock band separate from the poly-bag;

FIG. 2 is a perspective view of an embodiment of the invention;

FIG. 3 is a horizontal sectional detail view in an enlarged scale of a portion of the lock band;

FIG. 4 is a plan view showing the manner in which a sandwich may be inserted in the poly-bag;

FIG. 5 is a perspective view of a completed package of a sandwich within the container;

FIG. 6 is a partial detail elevational view of one embodiment of tie band showing transverse strips of pressure sensitive adhesive on the lock band;

FIG. 7 is a partial elevational detail view of another form of lock band employing a plurality of longitudinally extending strips; and,

FIG. 8 is a partial elevational detail view of yet another embodiment of lock band employing discrete geometrical figures of pressure sensitive adhesive.

With continuing reference to the accompanying drawing, wherein like reference numerals designate similar parts throughout the various views, reference numeral 10 generally designates a container constructed in accordance with the concepts of the present invention which includes a bag 12 of polyethylene or other thin transparent synthetic plastic film, which is heat sealed at the bottom 14 thereof and which may be heat sealedat one or more of its sides 16 and 18 and which has an open mouth 20 at the top 22 thereof. These plastic film bags 12 are usually manufactured in roll form and readily detach from each other and are known generally as poly-bags. Separate tie bands are usually provided for these polybags which may become lost or misplaced and in any event are of relatively expensive construction. I

In accordance with the concept of this invention, lock bands 24 are provided, which may be inexpensively made from embossed paper, foil, polyethylene, or the like, and may have the bottomend 26 bonded to the bottom 14 of the bag with its upperend 28 remaining free. Alternatively, if the lock band 24 is made of polyethylene or like substance which is heat sealable to the substance of the bag 12,'the lock band may be heat sealed as at 30 to the bottom 14 of the bag 12. The lock band 24 extends parallel to the sides 16 and 18 and perpendicular to the bottom 14 and the top 22 of the bag and preferably terminates flush with the mouth 20. The lock band 24 extends along the middle of the bag spaced between the sides 16 and 18 and has a coating 32 of pressure sensitive adhesive on the face thereof adjacent the bag 12. The coating 32 may be in the form of a single longitudinally extending strip 32 or, as shown in FIG. 6, the coating may be in the form of parallel transverse strips 34.

In FIG. 7 there is shown an arrangement wherein the coating includes three parallel longitudinal strips 36. Of course, two strips or more than three may be used if such is considered desirable.

FIG. 8 shows an arrangement wherein the coating is in the form of discrete geometrical FIGS. 36. In the embodiment of FIG. 8 these geometrical figures are circular. Of course, triangles, squares, rectangles, parallelograms, and other regular or irregular geometrical figures or letters can be used as desired.

When the poly-bag 12, according to the invention, is used, the bag is opened and the content desired to be protected, a sandwich, for example, is placed inside through the mouth 20. The lock band 24 is peeled back and the open end is folded closed by as many small folds as desired for tightness. Then, the lock band 24 is placed around and across the folded section of the bag with the adhesive coating 32 securely holding the lock band in place.

A latitude of modification, substitution and change is intended in the foregoing disclosure, and in some instances, some features of the invention may be em- What is claimed is:

l. A container comprising a bag having a closed heat sealed bottom, an open mouth at the top thereof, and a front and back wall, said bag being formed of flexible and foldable material, a separate deformable lock band on only one of said walls heat sealed to said bottom and extending to said mouth and being foldable to said top to adhesively close said bag.

2. A container according to claim 1, wherein said lock band is bonded to said bag and extends along the middle thereof and terminates at said top.

3. A container according to claim 1, wherein said lock band is heat sealed to said bag only at said bottom and extends along the middle thereof.

4. A container according to claim 1, including a coating of pressure sensitive adhesive on the face thereof adjacent said bag.

5. A container according to claim 3, including a coating of pressure sensitive adhesive on the face thereof adjacent said bag.

6. A container according to claim 4, wherein said coating includes at least one elongated strip extending from the bottom of said lock band to the top thereof.

7. A container according to claim 4, wherein said coating includes a plurality of strips extending transversely of said lock band.

8. A container according to claim 4, wherein'said coating includes a plurality of discrete geometrical figures.

Citas de patentes
Patente citada Fecha de presentación Fecha de publicación Solicitante Título
US273902 *15 Ago 188213 Mar 1883 Paper bag
US599219 *15 Feb 1898 Paper bag
US2510120 *31 May 19466 Jun 1950Russell J LeanderMasking paper
US3047206 *18 May 196031 Jul 1962Nat Biscuit CoClosure means
US3107842 *23 Ene 196122 Oct 1963Continental Can CoReclosable bag
US3301466 *25 Sep 196431 Ene 1967Milprint IncReclosable bag
US3565738 *26 Mar 196923 Feb 1971Union Carbide CorpPlastic bag and peelable plastic tie closure tape attached thereto
GB190427085A * Título no disponible
Citada por
Patente citante Fecha de presentación Fecha de publicación Solicitante Título
US3974960 *23 Jun 197517 Ago 1976Mitchell John RPlastic trash bag tie bands
US4008851 *16 Ene 197622 Feb 1977Curt G. Joa, Inc.Adhesive tape bag closure
US4066167 *8 Jul 19763 Ene 1978Keebler CompanyRecloseable package
US4906108 *8 Mar 19896 Mar 1990Mobil Oil CorporationCorrugated sticky tape bag tie closure
US4911563 *25 Ago 198827 Mar 1990Anchor Continental, Inc.Anchorseal
US5040903 *28 Sep 198920 Ago 1991Morgan Adhesives CompanyReclosable flexible container and method of reclosing
US5044776 *27 Abr 19903 Sep 1991Morgan Adhesives CompanyResealable closure system
US5511883 *29 Dic 199430 Abr 1996Plitek, L.L.C.Hang tab for containers
US5716135 *26 Ene 199610 Feb 1998Campbell; Wilson S.Shopping bag having restraining tabs and an associated method
US5772331 *23 Ago 199630 Jun 1998Packaging Concepts, Inc.Oven or microwave safe freezable package with reclosure
US6156363 *11 Jun 19995 Dic 2000First Brands CorporationClosure bag with internal tack surfaces
US6517243 *16 Feb 200111 Feb 2003Sonoco Development, Inc.Bag with reusable built-in closure tab
US6773162 *17 Ene 200310 Ago 2004Mark E. DanielsPlastic shopping bag with promotional strip ad
US684067620 Feb 200411 Ene 2005Mark E. DanielsPlastic shopping bag with promotional strip ad
US684360124 Feb 200418 Ene 2005Mark E. DanielsPlastic shopping bag with promotional strip ad
US7703980 *18 Oct 200227 Abr 2010Amcor Flexibles FranceResealable flexible packaging
US7708463 *17 Oct 20034 May 2010Amcor Flexibles Europe, Danish CorporationRecloseable flexible bag
US857978125 Nov 200812 Nov 2013Amcor Flexibles Europe, Danish CorporationRecloseable flexible bag
EP0273894A2 *18 Dic 19876 Jul 1988Ron LinnewielResealable flexible packaging and sealing tape therefore
EP0302600A1 *7 Jul 19888 Feb 1989Anchor Continental, Inc.Flexible package
EP0393810A2 *30 Ene 199024 Oct 1990Oscar Mayer Foods CorporationReclosable package with encompassing tamper-evident band
EP0748741A1 *29 Abr 199618 Dic 1996Rodolfo FiciniLatching device to avoid the expansion of compressible containers after their compression
EP1719712A1 *12 Jul 20058 Nov 2006Sealstrip CorporationReclosable packages
WO1995019259A1 *11 Ene 199520 Jul 1995Gary L RutledgeFlexible bag and method of making and attaching a tie
Clasificaciones
Clasificación de EE.UU.383/62, 383/90
Clasificación internacionalB65D33/16
Clasificación cooperativaB65D33/1691
Clasificación europeaB65D33/16H