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 numberUS20050238263 A1
Publication typeApplication
Application numberUS 10/830,992
Publication dateOct 27, 2005
Filing dateApr 22, 2004
Priority dateApr 22, 2004
Publication number10830992, 830992, US 2005/0238263 A1, US 2005/238263 A1, US 20050238263 A1, US 20050238263A1, US 2005238263 A1, US 2005238263A1, US-A1-20050238263, US-A1-2005238263, US2005/0238263A1, US2005/238263A1, US20050238263 A1, US20050238263A1, US2005238263 A1, US2005238263A1
InventorsLau Ping
Original AssigneePing Lau K
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Vacuum sealing bag
US 20050238263 A1
Abstract
A vacuum sealing bag includes first and second bag panels overlappedly affixed in an edge to edge manner to form a storing cavity between the first and second bag panels and an opening communicating with the storing cavity, and an air sealing arrangement having a plurality of first air channels longitudinally formed on an inner side of the first bag panel and a plurality of second air channels transversely formed on an inner side of the second bag panel in such a manner that when the inner side of the first bag panel is overlapped on the inner side of the second bag panel, the first air channels are communicatively intersected with the second air channels for guiding air within the storing cavity to outside, so as to air-seal the storing cavity in a vacuum manner.
Images(4)
Previous page
Next page
Claims(20)
1. A vacuum sealing bag, comprising:
first and second bag panels overlappedly affixed in an edge to edge manner to form a storing cavity between said first and second bag panels and an opening communicating with said storing cavity; and
an air sealing arrangement having a plurality of first air channels longitudinally formed on an inner side of said first bag panel and a plurality of second air channels transversely formed on an inner side of said second bag panel in such a manner that when said inner side of said first bag panel is overlapped on said inner side of said second bag panel, said first air channels are communicatively intersected with said second air channels for guiding air within said storing cavity to outside, so as to air-seal said storing cavity in a vacuum manner.
2. The vacuum sealing bag, as recited in claim 1, wherein said first and second air channels are perpendicular to each other when inner side of said first bag panel is overlapped on said inner side of said second bag panel such that when said first air channels are intersected with said second air channels, said air sealing arrangement is adapted for guiding said air within the storing cavity to efficiently flow between said first and second air channels.
3. The vacuum sealing bag, as recited in claim 1, wherein said first air channels are parallelly extended on said inner side of said first bag panel from edge to edge and said second air channels are parallelly extended on said inner side of said second bag panel from edge to edge such that when said inner side of said first bag panel is overlapped on said inner side of said second bag panel, said first air channels are intercommunicated with said second air channels in a crisscross manner so as to allow said air to flow therebetween.
4. The vacuum sealing bag, as recited in claim 2, wherein said first air channels are parallelly extended on said inner side of said first bag panel from edge to edge and said second air channels are parallelly extended on said inner side of said second bag panel from edge to edge such that when said inner side of said first bag panel is overlapped on said inner side of said second bag panel, said first air channels are intercommunicated with said second air channels in a crisscross manner so as to allow said air to flow therebetween.
5. The vacuum sealing bag, as recited in claim 1, wherein a plurality of grooves are longitudinally and transversely indented on said inner sides of said first and second bag panels to form said first and second air channels respectively, such that said first and second air channels are integrally formed on said inner sides of said first and second bag panels respectively.
6. The vacuum sealing bag, as recited in claim 2, wherein a plurality of grooves are longitudinally and transversely indented on said inner sides of said first and second bag panels to form said first and second air channels respectively, such that said first and second air channels are integrally formed on said inner sides of said first and second bag panels respectively.
7. The vacuum sealing bag, as recited in claim 4, wherein a plurality of grooves are longitudinally and transversely indented on said inner sides of said first and second bag panels to form said first and second air channels respectively, such that said first and second air channels are integrally formed on said inner sides of said first and second bag panels respectively.
8. The vacuum sealing bag, as recited in claim 1, wherein said first bag panel has a plurality of longitudinal guiding portions and a plurality of longitudinal sealing portions each formed between each two longitudinal guiding portions, wherein each of said longitudinal sealing portions of said first bag panel forms as a flat sealing surface and said first air channels are spacedly formed at said longitudinal guiding portions of said first bag panel for guiding said air extracted from said longitudinal sealing portions thereof.
9. The vacuum sealing bag, as recited in claim 4, wherein said first bag panel has a plurality of longitudinal guiding portions and a plurality of longitudinal sealing portions each formed between each two longitudinal guiding portions, wherein each of said longitudinal sealing portions of said first bag panel forms as a flat sealing surface and said first air channels are spacedly formed at said longitudinal guiding portions of said first bag panel for guiding said air extracted from said longitudinal sealing portions thereof.
10. The vacuum sealing bag, as recited in claim 7, wherein said first bag panel has a plurality of longitudinal guiding portions and a plurality of longitudinal sealing portions each formed between each two longitudinal guiding portions, wherein each of said longitudinal sealing portions of said first bag panel forms as a flat sealing surface and said first air channels are spacedly formed at said longitudinal guiding portions of said first bag panel for guiding said air extracted from said longitudinal sealing portions thereof.
11. The vacuum sealing bag, as recited in claim 8, wherein a width of each said longitudinal guiding portion of said first bag panel is larger than a width of each said longitudinal sealing portion thereof for preventing air bubble being formed within said longitudinal sealing portion of said first bag panel.
12. The vacuum sealing bag, as recited in claim 9, wherein a width of each said longitudinal guiding portion of said first bag panel is larger than a width of each said longitudinal sealing portion thereof for preventing air bubble being formed within said longitudinal sealing portion of said first bag panel.
13. The vacuum sealing bag, as recited in claim 10, wherein a width of each said longitudinal guiding portion of said first bag panel is larger than a width of each said longitudinal sealing portion thereof for preventing air bubble being formed within said longitudinal sealing portion of said first bag panel.
14. The vacuum sealing bag, as recited in claim 8, wherein said second bag panel has a plurality of transverse guiding portions and a plurality of transverse sealing portions each formed between each two transverse guiding portions, wherein each of said transverse sealing portions of said second bag panel forms as a flat sealing surface and said second air channels are spacedly formed at said transverse guiding portions of said second bag panel for guiding said air extracted from said transverse sealing portions thereof.
15. The vacuum sealing bag, as recited in claim 10, wherein said second bag panel has a plurality of transverse guiding portions and a plurality of transverse sealing portions each formed between each two transverse guiding portions, wherein each of said transverse sealing portions of said second bag panel forms as a flat sealing surface and said second air channels are spacedly formed at said transverse guiding portions of said second bag panel for guiding said air extracted from said transverse sealing portions thereof.
16. The vacuum sealing bag, as recited in claim 11, wherein said second bag panel has a plurality of transverse guiding portions and a plurality of transverse sealing portions each formed between each two transverse guiding portions, wherein each of said transverse sealing portions of said second bag panel forms as a flat sealing surface and said second air channels are spacedly formed at said transverse guiding portions of said second bag panel for guiding said air extracted from said transverse sealing portions thereof, wherein a width of each said transverse guiding portion of said second bag panel is larger than a width of each said transverse sealing portion thereof for preventing air bubble being formed within said transverse sealing portion of said second bag panel.
17. The vacuum sealing bag, as recited in claim 13, wherein said second bag panel has a plurality of transverse guiding portions and a plurality of transverse sealing portions each formed between each two transverse guiding portions, wherein each of said transverse sealing portions of said second bag panel forms as a flat sealing surface and said second air channels are spacedly formed at said transverse guiding portions of said second bag panel for guiding said air extracted from said transverse sealing portions thereof, wherein a width of each said transverse guiding portion of said second bag panel is larger than a width of each said transverse sealing portion thereof for preventing air bubble being formed within said transverse sealing portion of said second bag panel.
18. The vacuum sealing bag, as recited in claim 1, wherein each of said first and second bag panels is made of air impermeable material to prevent said air entering into said storing cavity after said storing cavity is air-sealed between said first and second bag panels.
19. The vacuum sealing bag, as recited in claim 7, wherein each of said first and second bag panels is made of air impermeable material to prevent said air entering into said storing cavity after said storing cavity is air-sealed between said first and second bag panels.
20. The vacuum sealing bag, as recited in claim 17, wherein each of said first and second bag panels is made of air impermeable material to prevent said air entering into said storing cavity after said storing cavity is air-sealed between said first and second bag panels.
Description
    BACKGROUND OF THE PRESENT INVENTION
  • [0001]
    1. Field of Invention
  • [0002]
    The present invention relates to a packing bag, and more particularly to a vacuum sealing bag, wherein air can be completely extracted from the vacuum sealing bag so as to pack the item in the vacuum sealing bag in a vacuum manner.
  • [0003]
    2. Description of Related Arts
  • [0004]
    Vacuum packing bags are commonly used for sealedly packing an item, such as food or cloth, such that the item can be packed in a vacuum manner. A conventional vacuum packing bag comprises two bag panels overlappedly mounted edges to edges to form a storing chamber such that when the item is disposed in the storing chamber, a vacuuming device is arranged to connect to the vacuum packing bag to extract the air within the storing chamber.
  • [0005]
    Accordingly, since the air within the storing chamber is extracted, the vacuum packing bag provides a vacuum environment for the item to minimize the size of the item and prevent the growth of bacterial. For example, the volume of the cloth can be minimized by extracting the air therefrom for easily storage. Another usage for the storing chamber is to pack the food such that when the air is extracted from the vacuum packing bag, the food is preserved to prevent the growth of bacterial.
  • [0006]
    However, the conventional vacuum packing bag has a major drawback that the air cannot be completely extracted from the storing chamber. Due to the irregular shape of the item, a certain amount of air is trapped within a corner or between the bag panel and the item during vacuuming. It is difficult for the user to remove the air bubble within the storing chamber while the air bubble is formed between the bag panels in an air sealed manner. Therefore, it is unsafe to preserve the food once the air is stayed within the storing chamber. In other words, the vacuum packing bag cannot achieve its original function to pack the item in a vacuum manner.
  • [0007]
    U.S. Pat. No. 4,756,422, owned by Kristen, discloses an improved vacuum packing bag which comprises two bag panels defining the storing chamber therebetween wherein a plurality of protuberances having a waffle shaped formed on one of the bag panels to define a plurality of intercommunicating channels in such a manner that the air within the storing chamber can be extracted through the intercommunicating channels to prevent the air bubble forming between the bag panels.
  • [0008]
    However, due to the waffle shaped protuberances, the air will be extracted from the storing chamber turbulently along the intercommunicating channels. Therefore, the time required for completely extracting the air will be substantially prolonged. In addition, another bag panel without the protuberances will seal on the surface of the item such that air bubble will formed between the surface of the item and the bag panel.
  • SUMMARY OF THE PRESENT INVENTION
  • [0009]
    A main object of the present invention is to provide a vacuum sealing bag, wherein air can be completely extracted from the vacuum sealing bag so as to pack the item in the vacuum sealing bag in a vacuum manner.
  • [0010]
    Another object of the present invention is to provide a vacuum sealing bag, wherein a plurality of first air channels are longitudinally formed on one of the bag panel while a plurality of second channels are transversely formed on the other bag panel in such a manner that when the two bag panels are overlapped, the first and second air channels are communicated with each other while the air within the vacuum sealing bag can be completely extracted to outside along the first and second air channels.
  • [0011]
    Another object of the present invention is to provide a vacuum sealing bag, wherein when an item is packed between the two bag panels, the first and second air channels are either communicated with each other or in contact with the surfaces of the item. Therefore, no air bubble is formed either at the corner of the storage cavity or between the surface of the item and the bag panel.
  • [0012]
    Another object of the present invention is to provide a vacuum sealing bag, wherein the air is guided to flow along the first and second air channels to outside such that no turbulent flow is formed between the bag panels so as to effectively extract the air from the storing cavity.
  • [0013]
    Another object of the present invention is to provide a vacuum sealing bag, which is adapted for incorporating with any vacuum device to extract the air from the vacuum sealing bag.
  • [0014]
    Another object of the present invention is to provide a vacuum sealing bag, which does not require altering the original structure of the bag panel so as to reduce the manufacturing cost of the vacuum sealing bag with built-in first and second air channels.
  • [0015]
    Another object of the present invention is to provide a vacuum sealing bag, wherein no expensive or mechanical structure is required to employ in the present invention in order to achieve the above mentioned objects. Therefore, the present invention successfully provides an economic and efficient solution not only for providing a quick air-sealing configuration of the vacuum sealing bag but also for enhancing the practice use of the vacuum sealing bag.
  • [0016]
    Accordingly, in order to accomplish the above objects, the present invention provides a vacuum sealing bag, comprising:
  • [0017]
    first and second bag panels overlappedly affixed in an edge to edge manner to form a storing cavity between the first and second bag panels and an opening communicating with the storing cavity; and
  • [0018]
    an air sealing arrangement having a plurality of first air channels longitudinally formed on an inner side of the first bag panel and a plurality of second air channels transversely formed on an inner side of the second bag panel in such a manner that when the inner side of the first bag panel is overlapped on the inner side of the second bag panel, the first air channels are communicatively intersected with the second air channels for guiding air within the storing cavity to outside, so as to air-seal the storing cavity in a vacuum manner.
  • [0019]
    These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0020]
    FIG. 1 is a perspective view of a vacuum sealing bag according to a preferred embodiment of the present invention.
  • [0021]
    FIG. 2 is a partially perspective view of the air sealing arrangement of the vacuum sealing bag according to the above preferred embodiment of the present invention.
  • [0022]
    FIG. 3 is a partially perspective view of the vacuum sealing bag according to the above preferred embodiment of the present invention, illustrating an item paced in the vacuum sealing bag in an air sealed manner.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • [0023]
    Referring to FIG. 1 of the drawings, a vacuum sealing bag according to a preferred embodiment of the present invention is illustrated, wherein the vacuum sealing bag comprises first and second bag panels 10, 20 overlappedly affixed in an edge to edge manner to form a storing cavity 101 between the first and second bag panels 10, 20 and an opening 102 communicating with the storing cavity 101.
  • [0024]
    The vacuum sealing bag further comprises an air sealing arrangement 30 having a plurality of first air channels 31 longitudinally formed on an inner side 11 of the first bag panel 10 and a plurality of second air channels 32 transversely formed on an inner side 21 of the second bag panel 20 in such a manner that when the inner side 11 of the first bag panel 10 is overlapped on the inner side 21 of the second bag panel 20, the first air channels 31 are communicatively intersected with the second air channels 32 for guiding air within the storing cavity 101 to outside, so as to air-seal the storing cavity 101 in a vacuum manner.
  • [0025]
    According to the preferred embodiment, each of the first and second bag panels 10, 20 is made of air impermeable material to prevent the air entering into the storing cavity 101 after the storing cavity 101 is air-sealed between the first and second bag panels 10, 20. As shown in FIG. 1, a peripheral edge portion of the first bag panel 10 is sealedly affixed to a peripheral edge portion of the second bag panel 20 to form the storing cavity 101 between the inner sides 11, 21 of the first and second bag panels 10, 20 while one edge of the first bag panel 10 is unsealed to the second bag panel 20 to form the opening 102 to communicate with the storing cavity 101.
  • [0026]
    The first and second air channels 31, 32 are spacedly formed on the inner sides 11, 21 of the first and second bag panels 10 respectively, wherein each of the first and second air channels 31, 32 is communicating with the storing cavity 101 for guiding the direction of airflow within the storing cavity 101 to outside.
  • [0027]
    The first air channels 31 are parallelly extended on the inner side 11 of the first bag panel 10 from edge to edge and the second air channels 32 are parallelly extended on the inner side 21 of the second bag panel 20 from edge to edge such that when the inner side 11 of the first bag panel 10 is overlapped on the inner side 21 of the second bag panel 20, the first air channels 31 are intercommunicated with the second air channels 32 in a crisscross manner so as to allow the air to flow therebetween.
  • [0028]
    Accordingly, a plurality of grooves are longitudinally and transversely indented on the inner sides 11, 21 of the first and second bag panels 10, 20 to form the first and second air channels 31, 32 respectively, such that the first and second air channels 31, 32 are integrally formed on the inner sides 11, 21 of the first and second bag panels 10, 20 respectively.
  • [0029]
    As shown in FIGS. 1 and 2, the first and second air channels 31, 32 are perpendicular to each other such that when the first air channels 31 are intersected with the second air channels 32, the air within the storing cavity 101 is allowed to efficiently flow between the first and second air channels 31, 32.
  • [0030]
    The first bag panel 10 has a plurality of longitudinal guiding portions 12 and a plurality of longitudinal sealing portions 13 each formed between each two longitudinal guiding portions 12 wherein each of the longitudinal sealing portions 13 of the first bag panel 10 has a flat sealing surface for sealedly contacting with an item within the storing cavity 101 while the first air channels 31 are spacedly formed at the longitudinal guiding portions 12 of the first bag panel 10 for guiding the air extracted from the longitudinal sealing portions 13 thereof.
  • [0031]
    Accordingly, a width of each longitudinal guiding portion 12 of the first bag panel 10 is larger than a width of each longitudinal sealing portion 13 thereof so as to prevent air bubble being formed within the longitudinal sealing portion 13 of the first bag panel 10.
  • [0032]
    In addition, the second bag panel 20 has a plurality of transverse guiding portions 22 and a plurality of transverse sealing portions 23 each formed between each two transverse guiding portions 22 wherein each of the transverse sealing portions 23 of the second bag panel 20 has a flat sealing surface for sealedly contacting with an item within the storing cavity 101 while the second air channels 32 are spacedly formed at the transverse guiding portions 22 of the second bag panel 20 for guiding the air extracted from the transverse sealing portions 23 thereof.
  • [0033]
    Likewise, a width of each transverse guiding portion 22 of the second bag panel 20 is larger than a width of each transverse sealing portion 23 thereof so as to prevent air bubble being formed within the transverse sealing portion 23 of the second bag panel 20.
  • [0034]
    According to the preferred embodiment, in order to manufacture the vacuum sealing bag of the present invention, an elongated bag sheet is formed wherein a plurality of grooves are longitudinally formed along the bag sheet. By cutting the bag sheet into a plurality of first and second bag panels 10, 20 having a corresponding size and shape, the grooves formed on the first bag panel 10 are embodied as the first air channels 31 while the grooves formed on the second panel 20 are embodied as the second air channels 32. Therefore, the second panel 20 is alignedly folded at a position that when the first bag panel 10 is overlapped on the second bag panel 20, the first air channels 31 are intersected with the second air channels 32. In other words, the manufacturing process of the vacuum sealing bag of the present invention is simplified and easy so as to reduce the manufacturing cost of the present invention.
  • [0035]
    Therefore, in order to sealedly pack the item in the vacuum sealing bag of the present invention, the user is able to dispose the item within the storing cavity 101 such that the surfaces of the item are respectively facing towards the inner sides 11, 21 of the first and second bag panels 10, 20. Then, by using a conventional vacuum pump to extract the air within the storing cavity 101 through the opening 102, the air is sucked until the surfaces of the item are contacted with the inner sides 11, 21 of the first and second bag panels 10, 20. At the same time, the air within the storing cavity 101 is guided to flow along the first and second air channels 31, 32 to outside until the air is completely extracted from the storing cavity 101.
  • [0036]
    It is worth to mention that when the surfaces of the item are sealedly contacted with the inner sides 11, 21 of the first and second bag panels 10, 20 respectively, no air bubble is formed between the surfaces of the item and the first and second bag panels 10, 20 because the air is guided to flow along the first and second air channels 31, 32. In addition, when the inner sides 11, 12 of the first and second bag panels 10, 20 are overlapped to intersect the first air channels 31 with the second air channels 32, the air is guided to flow therealong such that no air bubble is formed between the first and second bag panels 10, 20, especially at the corner of the vacuum sealing bag.
  • [0037]
    One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.
  • [0038]
    It will thus be seen that the objects of the present invention have been fully and effectively accomplished. It embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US4756422 *Apr 9, 1987Jul 12, 1988Kristen Hanns JPlastic bag for vacuum sealing
US5618111 *May 15, 1996Apr 8, 1997Dowbrands L.P.Flexible thermoplastic containers having visual pattern thereon
US6799680 *Apr 5, 2002Oct 5, 2004The Holmes Group, Inc.Vacuum sealed containers
US20030102245 *Dec 5, 2002Jun 5, 2003Donglei WangVacuum fresh-maintaining plastic bag
US20030155269 *Feb 21, 2002Aug 21, 2003Kyul-Joo LeeMethod for preparing air channel-equipped film for use in vacuum package
US20040050745 *Sep 13, 2002Mar 18, 2004Lee William JonathonBag for vacuum sealing an item within
US20050205455 *Jul 8, 2003Sep 22, 2005Harrison Howard RVacuum packaging system
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US7534039 *Jul 19, 2005May 19, 2009Sunbeam Products, Inc.Vacuum packaging films patterned with protruding cavernous structures
US7597479Jan 20, 2005Oct 6, 2009The Glad Products CompanyStorage bag with fluid separator
US7757857 *Apr 29, 2008Jul 20, 2010Liang GuoqiangPlastic bag for vacuum packing
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
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
US7887238Jun 15, 2007Feb 15, 2011S.C. Johnson Home Storage, Inc.Flow channels for a pouch
US7946766Jun 15, 2007May 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
US8176604Jul 23, 2010May 15, 2012S.C. Johnson & Son, Inc.Pouch and airtight resealable closure mechanism therefor
US8197138Aug 12, 2008Jun 12, 2012S.C. Johnson & Son, Inc.Evacuable container and evacuation strip therefor
US8231273Dec 17, 2010Jul 31, 2012S.C. Johnson & Son, Inc.Flow channel profile and a complementary groove for a pouch
US8419279Aug 4, 2009Apr 16, 2013The Glad Products CompanyFlexible storage bag
US8827556Dec 16, 2010Sep 9, 2014S.C. Johnson & Son, Inc.Pouch and airtight resealable closure mechanism therefor
US20060159576 *Jan 20, 2005Jul 20, 2006Bergman Carl LStorage bag with fluid separator
US20060193540 *May 4, 2006Aug 31, 2006Borchardt Michael GFlexible Storage Bag
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
US20070116385 *Feb 6, 2007May 24, 2007The Glad Products CompanyFlexible storage bag
US20080264821 *Apr 29, 2008Oct 30, 2008Liang GuoqiangPlastic bags for vacuum packing
US20100040310 *Aug 12, 2008Feb 18, 2010Turvey Robert REvacuable container and evacuation strip therefor
US20100177990 *Jul 3, 2008Jul 15, 2010Neltner Andrew EStorage bag
US20100205909 *Jul 3, 2008Aug 19, 2010Zimmerman Dean AStorage bag
US20140320570 *Apr 16, 2014Oct 30, 2014Kyocera Document Solutions Inc.Liquid container and inkjet image forming apparatus
CN102556509A *Dec 23, 2011Jul 11, 2012刘同益Vacuum packaging bag with free air guide function
Classifications
U.S. Classification383/100, 383/105
International ClassificationB65D33/00, B65D33/01, B65D81/20
Cooperative ClassificationB65D81/2038
European ClassificationB65D81/20B3