Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS20030102245 A1
Publication typeApplication
Application numberUS 10/310,301
Publication dateJun 5, 2003
Filing dateDec 5, 2002
Priority dateDec 5, 2001
Publication number10310301, 310301, US 2003/0102245 A1, US 2003/102245 A1, US 20030102245 A1, US 20030102245A1, US 2003102245 A1, US 2003102245A1, US-A1-20030102245, US-A1-2003102245, US2003/0102245A1, US2003/102245A1, US20030102245 A1, US20030102245A1, US2003102245 A1, US2003102245A1
InventorsDonglei Wang
Original AssigneeDonglei Wang
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Vacuum fresh-maintaining plastic bag
US 20030102245 A1
Abstract
The vacuum fresh-maintaining plastic bag, wherein it includes two layer thin film, and the two opposite inner surface of each of the thin film is non planar surface. In the present utility model, while the vacuum fresh-maintaining plastic bag is being vacuum pumped, since the channels and the pits of the two opposite inner surfaces are intersected to each other, the air is discharged to the outside of the bag along the channels as a result of not forming the suction region near the suction nozzle and greatly improving the vacuum degree of the packaging bag.
Images(4)
Previous page
Next page
Claims(9)
1. A vacuum fresh-maintaining plastic bag comprising two layers of thin film having two opposing inner surfaces, wherein the two opposing inner surfaces are non planar surfaces.
2. The vacuum fresh-maintaining plastic bag according to the claim 1, wherein the said two opposing inner surfaces comprise parallel concave-convex channels, and the channels of the two opposing inner surfaces intersect with each other by an angle of 0<α≦90 therebetween.
3. The vacuum fresh-maintaining plastic bag according to the claim 2, wherein the said film comprises an inner layer and an outer layer, the inner layer thereof is made of polyethylene plastic while the outer layer is made of polyamide plastic, the inner layer and the outer layer are recombined into the concave-convex channel shape, the channels are arranged in line, and the films are in wavy shape.
4. The vacuum fresh-maintaining plastic bag according to the claim 2, wherein the channels have a triangle shape cross section and are separated by a distance, and the distance between the channels is substantially the same, the channels are attached to each other by a platform which defines a central line between the channels, and wherein the channels define a channel width that is smaller than the distance between the central line of adjacent platforms.
5. The vacuum fresh-maintaining plastic bag according to the claim 2, wherein the distance between the channels of the up and down surfaces are different from each other, but that is the same within the same surface.
6. The vacuum fresh-maintaining plastic bag according to the claim 1, wherein both of the two opposing inner surfaces have concave pits.
7. The vacuum fresh-maintaining plastic bag according to the claim 6, wherein the concave pits have a recess direction along the opposite inner surface that is directed to the outside, and the concave pits of the two opposing inner surfaces intersect or face each other.
8. The vacuum fresh-maintaining plastic bag according to the claim 6, wherein the said film is in two layers, the inner layer thereof is made of polyethylene plastic while the outer layer is made of polyamide plastic, and wherein the inner layer and the outer layer are pressed into the regularly arranged pits after they are recombined together.
9. The vacuum fresh-maintaining plastic bag according to the claim 6, wherein the concave pits within each inner surface have substantially the same size but the pits within the opposing inner surfaces have different sizes, and wherein the concave pits have a width and a spacing distance such that the width is proportional to the spacing distance between the pits.
Description
    THE TECHNICAL FIELD
  • [0001]
    The present utility model relates to a vacuum fresh-maintaining plastic bag, and particularly relates to a vacuum fresh-maintaining plastic bag with the two-layer composite structure.
  • THE BACKGROUND ART
  • [0002]
    The traditional vacuum plastic bag being used now is usually made of the PE material with the strong air permeability, which leads to the entry of air into it even after the vacuum plastic bag being packaged for sometime and loosing the fresh-maintaining function. And then it is suggested that the material of the plastic bag should be the composite material, the inner layer of that is the non-poisonous PE (polyethylene) or PP (polypropylene), while the outer layer of that is made of the PA (polyamide) material without the air permeability. The vacuum bag sealer used in the family is in small volume and low power, therefore it is not possible to put the whole plastic bag into the vacuum chamber for vacuum-pumping. In this case, it is suggested to put the opening of the plastic bag into the vacuum chamber or extend the suction nozzle into the plastic bag for vacuum-pumping. The up and down layer of the common planar plastic bag are liable to be sticked together at the position near to the suction nozzle 6 while being vacuum pumped, which results to form the annular tape 7 (referencing the FIG. 6) and the air at the rear part of the annular tape can not be taken out.
  • THE INVENTIVE CONTENT
  • [0003]
    The purpose of this utility model is to provide a kind of vacuum fresh-maintaining plastic bag with the two-layer composite structure in order to improve the vacuum degree inside the packaging bag.
  • [0004]
    According to one aspect of this utility model, the vacuum fresh-maintaining plastic bag includes two layer thin film, and the opposite inner surface of each of the thin film is in the shape of the parallel concave-convex channel, and the channels of the two opposite inner surfaces are intersected with each other by the angle of 0≦α90 therebetween.
  • [0005]
    According to another aspect of this utility model, the vacuum fresh-maintaining plastic bag includes two layer thin film, and the two opposite inner surfaces both have the concave pits.
  • [0006]
    The recess direction of the said concave pits along the opposite inner surface is directed to the outside, and the pits of the two opposite inner surfaces are intersected or being faced each other.
  • [0007]
    The said film is in two layers, the inner layer thereof is made of the PE plastic while the outer layer is made of the PA plastic, the inner layer and the outer layer are pressed into the regularly arranged pits after they are recombined together, the size of the pits within each of the two opposite inner surfaces are the same and they are in different sizes between the two opposite inner surfaces, the width of the pits are disposed in proportion according to the distance between the pits.
  • [0008]
    The pits on each of the two opposite surfaces are regularly arranged without communication to each other.
  • [0009]
    In the present utility model, while the vacuum fresh-maintaining plastic bag is being vacuum pumped, since the channels and the pits of the two opposite inner surfaces are intersected to each other, the air is discharged to the outside of the bag along the channels as a result of not forming the suction region near the suction nozzle and greatly improving the vacuum degree of the packaging bag.
  • THE DESCRIPTION OF THE DRAWINGS
  • [0010]
    The FIG. 1 shows the structural schematic view of the vacuum fresh-maintaining plastic bag according to the first embodiment of this utility model;
  • [0011]
    The FIG. 2 shows sectional schematic view of the film in the vacuum fresh-maintaining plastic bag according to the first embodiment of this utility model;
  • [0012]
    The FIG. 3 shows the structural schematic view of the vacuum fresh-maintaining plastic bag according to the second embodiment of this utility model;
  • [0013]
    The FIG. 4 shows the planar schematic view of the film according to the second embodiment of this utility model;
  • [0014]
    The FIG. 5 shows the sectional schematic view of the film in the vacuum fresh-maintaining plastic bag according to the second embodiment of this utility model;
  • [0015]
    The FIG. 6 shows the schematic view of the air flowing within the film according to the second embodiment of this utility model;
  • [0016]
    The FIG. 7 shows the structural view of the vacuum bag in the prior art.
  • THE PREFERRED EMBODIMENTS The First Embodiment
  • [0017]
    As shown in the FIG. 1 and FIG. 2, the vacuum fresh-maintaining plastic bag includes two layer thin film, and the opposite inner surface of each of the thin film is in the shape of the parallel concave-convex channel, and the channels of the two opposite inner surfaces are intersected with each other by the angle of 0<α≦90 therebetween.
  • [0018]
    The film (1, 2) includes two layers (5, 6), the inner layer 5 is made of the PE plastic material, while the outer layer 6 is made of the PA plastic material, the inner layer 5 and the outer layer 6 are recombined into the concave-convex channel shape, the channels 3 are arranged in line, and the films (5, 6) are in a wavy shape, the channels 3 of the film 5 and film 6 are intersected to each other by the angle of 0<α≦90 therebetween after the films (5, 6) being packaged into the bag. The section of the above channels is in the triangle shape, and the distance between the channels 3 is the same, the channels 3 are attached to each other by a platform 4 having a central line, and the width of the channels 3 is smaller than distance between adjacent central lines of adjacent platforms 4 in order to make the channel 3 have enough rigidity and toughness.
  • The Second Embodiment
  • [0019]
    As shown in the FIGS. (3), (4), and (5), the vacuum fresh-maintaining plastic bag includes a two layer thin film, and the two opposite inner surfaces both have the concave pits. The recess direction of the said concave pits along the opposite inner surface is directed to the outside, and the pits of the two opposite inner surfaces are intersected or being faced each other. The said films (1, 2) are in two layers (5, 6), the inner layer 5 thereof is made of the PE plastic while the outer layer 6 is made of the PA plastic. The inner layer 5 and the outer layer 6 are pressed into the regularly arranged pits after they are recombined together. The pits on each of the two opposite surfaces are regularly arranged without communication to each other, the width of the pits are disposed in proportion with the distance between the pits in order to keep better air flowing, the route of the air flowing is shown in the FIG. (6).
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2778171 *Feb 26, 1953Jan 22, 1957Wilts United Dairies LtdProduction of air-tight packages
US2778173 *Aug 24, 1951Jan 22, 1957Wilts United Dairies LtdMethod of producing airtight packages
US4756422 *Apr 9, 1987Jul 12, 1988Kristen Hanns JPlastic bag for vacuum sealing
US6471402 *Nov 5, 2001Oct 29, 2002Jeff BurnsFormed stacking element integral with plastic storage bags
US6715644 *Dec 21, 2001Apr 6, 2004David S. Smith Packaging LimitedFlexible plastic container
US20040050745 *Sep 13, 2002Mar 18, 2004Lee William JonathonBag for vacuum sealing an item within
USRE34929 *Jan 22, 1993May 9, 1995Tilia, Inc.Plastic bag for vacuum sealing
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6991109Apr 17, 2002Jan 31, 2006Foodfresh Technologies LlcVacuum sealable bag apparatus and method
US7270238Feb 19, 2004Sep 18, 2007Foodfresh Technologies, LlcVacuum sealable bag apparatus and method
US7438473Apr 27, 2006Oct 21, 2008The Glad Products CompanyFlexible storage bag
US7578320May 4, 2006Aug 25, 2009The Glad Products CompanyFlexible storage bag
US7597479Jan 20, 2005Oct 6, 2009The Glad Products CompanyStorage bag with fluid separator
US7726880 *Jun 29, 2004Jun 1, 2010The Glad Products CompanyFlexible storage bag
US7784160Jun 15, 2007Aug 31, 2010S.C. Johnson & Son, Inc.Pouch and airtight resealable closure mechanism therefor
US7798714Feb 6, 2007Sep 21, 2010The Clorox CompanyFlexible storage bag
US7857514Dec 12, 2006Dec 28, 2010Reynolds Foil Inc.Resealable closures, polymeric packages and systems and methods relating thereto
US7857515Jun 15, 2007Dec 28, 2010S.C. Johnson Home Storage, Inc.Airtight closure mechanism for a reclosable pouch
US7874731Jun 15, 2007Jan 25, 2011S.C. Johnson Home Storage, Inc.Valve for a recloseable container
US7886412Mar 16, 2007Feb 15, 2011S.C. Johnson Home Storage, Inc.Pouch and airtight resealable closure mechanism therefor
US7887238Feb 15, 2011S.C. Johnson Home Storage, Inc.Flow channels for a pouch
US7938581 *May 10, 2011Lau Kong PingVacuum sealing bag
US7946766May 24, 2011S.C. Johnson & Son, Inc.Offset closure mechanism for a reclosable pouch
US7967509Jun 15, 2007Jun 28, 2011S.C. Johnson & Son, Inc.Pouch with a valve
US8061899Nov 22, 2011The Glad Products CompanyStorage bag
US8176604May 15, 2012S.C. Johnson & Son, Inc.Pouch and airtight resealable closure mechanism therefor
US8231273Dec 17, 2010Jul 31, 2012S.C. Johnson & Son, Inc.Flow channel profile and a complementary groove for a pouch
US8397958Mar 19, 2013Ds Smith Plastics LimitedClosure valve assembly for a container
US8419279Aug 4, 2009Apr 16, 2013The Glad Products CompanyFlexible storage bag
US8820591Jan 17, 2013Sep 2, 2014Ds Smith Plastics LimitedClosure valve assembly for a container
US8827556Dec 16, 2010Sep 9, 2014S.C. Johnson & Son, Inc.Pouch and airtight resealable closure mechanism therefor
US8973789Mar 31, 2014Mar 10, 2015Ds Smith Plastics LimitedClosure valve assembly for a container
US20040176735 *Sep 18, 2003Sep 9, 2004Snell Alan K.Packaged diaper, related accessories and packaging system
US20040231294 *Feb 19, 2004Nov 25, 2004Shannon Daniel P.Vacuum sealable bag apparatus and method
US20050131368 *Sep 18, 2003Jun 16, 2005Diaperoos, LlcVacuum-packed diaper
US20050138896 *Mar 14, 2005Jun 30, 2005Diaperoos, LlcVacuum-packing compartmentalized diaper kit
US20050139503 *Mar 12, 2005Jun 30, 2005Diaperoos, LlcVacuum-packing diaper at millibars of pressure
US20050143700 *Mar 8, 2005Jun 30, 2005Diaperoos, LlcManufacture of vacuum-packed diaper
US20050143701 *Mar 10, 2005Jun 30, 2005Diaperoos, LlcVacuum-packed diaper feeding kit
US20050143704 *Mar 8, 2005Jun 30, 2005Diaperoos, LlcVacuum-packed diaper kit
US20050143706 *Mar 14, 2005Jun 30, 2005Diaperoos, LlcCompartmentalized vacuum-packed diaper kit
US20050155875 *Mar 31, 2005Jul 21, 2005Diaperoos, LlcToy container for volumetrically reduced diaper
US20050155892 *Mar 31, 2005Jul 21, 2005Diaperoos, LlcGraphic viewable through encasement of vacuum-packed diaper
US20050155893 *Mar 31, 2005Jul 21, 2005Diaperoos, LlcVacuum-sealing diaper in vacuum chamber
US20050155894 *Mar 31, 2005Jul 21, 2005Diaperoos, LlcPressing and vacuum-packing diaper
US20050155897 *Mar 31, 2005Jul 21, 2005Diaperoos, LlcIndicia viewable through encasement of vacuum-packed diaper
US20050155898 *Mar 31, 2005Jul 21, 2005Diaperoos, LlcIndicia of reduced diaper viewable through encasement
US20050159723 *Mar 31, 2005Jul 21, 2005Diaperoos, LlcIndicia of folded diaper viewable through encasement
US20050165377 *Mar 28, 2005Jul 28, 2005Diaperoos, LlcAccordion folded absorbent article
US20050238263 *Apr 22, 2004Oct 27, 2005Ping Lau KVacuum sealing bag
US20050286808 *Jun 29, 2004Dec 29, 2005Zimmerman Dean AFlexible storage bag
US20060048483 *Jul 20, 2005Mar 9, 2006Tilman Paul AStorage system having a disposable vacuum bag
US20060110079 *Jun 29, 2005May 25, 2006Zimmerman Dean AStorage bag
US20060159576 *Jan 20, 2005Jul 20, 2006Bergman Carl LStorage bag with fluid separator
US20060193540 *May 4, 2006Aug 31, 2006Borchardt Michael GFlexible Storage Bag
US20060231429 *Jun 25, 2006Oct 19, 2006Diaperoos, LlcInfant care kit including diaper
US20060280388 *Aug 25, 2006Dec 14, 2006The Glad Products CompanyFlexible storage bag
US20060280389 *Aug 25, 2006Dec 14, 2006The Glad Products CompanyFlexible storage bag
US20060283148 *Aug 25, 2006Dec 21, 2006The Glad Products CompanyFlexible storage bag
US20070025648 *Jul 27, 2005Feb 1, 2007Kenneth MicnerskiCollapsible bag for dispensing liquids and method
US20070092167 *May 8, 2006Apr 26, 2007Paul TilmanPolymeric Package With Resealable Closure And Valve, And Methods
US20070101682 *Dec 28, 2006May 10, 2007Tilman Paul AStorage system having a disposable vacuum bag
US20070101685 *Dec 28, 2006May 10, 2007Tilman Paul AStorage system having a disposable vacuum bag
US20070110340 *Nov 8, 2006May 17, 2007Buchman James ETamper evident polymeric package with zipper closure and valve, and methods
US20070116385 *Feb 6, 2007May 24, 2007The Glad Products CompanyFlexible storage bag
US20070132876 *Dec 11, 2006Jun 14, 2007Tsuyoshi OhnoSolid-state image pickup device, color separation image pickup optical system and image pickup apparatus
US20070172157 *Jan 26, 2007Jul 26, 2007Alcoa Inc.Polymeric package with resealable closure and valve and methods relating thereto
US20070286534 *Jul 25, 2007Dec 13, 2007Alcoa Inc.Polymeric package with resealable closure and valve, and methods
US20070292055 *Aug 14, 2007Dec 20, 2007Reuhs Rebecca SBag with Valve
US20080000204 *Jun 21, 2007Jan 3, 2008S.C. Johnson Home Storage, Inc.Vacuum sealer apparatus and a film cartridge for a vacuum sealer and a means of operating the vacuum sealer and the film cartridge
US20080137996 *Nov 15, 2007Jun 12, 2008Lau Kong PingVacuum sealing bag
US20080199110 *Aug 19, 2005Aug 21, 2008Brent AndersonFluids container
US20080256901 *Apr 23, 2008Oct 23, 2008Reynolds Foil Inc, D/B/A Reynolds Consumer Products CompanyPolymeric package with resealable closure and valve, and methods
US20090071862 *Mar 31, 2005Mar 19, 2009Diaperoos, LlcIndicia of reduced diaper viewable through encasement
US20090290817 *Aug 4, 2009Nov 26, 2009Borchardt Michael GFlexible Storage Bag
US20100177990 *Jul 3, 2008Jul 15, 2010Neltner Andrew EStorage bag
US20100205909 *Jul 3, 2008Aug 19, 2010Zimmerman Dean AStorage bag
US20100266222 *Oct 21, 2010The Glad Products CompanyBag
US20110041466 *Feb 24, 2011Closure Systems International Inc.Storage system having a disposable vacuum bag
Classifications
U.S. Classification206/524.8
International ClassificationB65D81/20
Cooperative ClassificationB65D81/2023
European ClassificationB65D81/20B2