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WO2002010017A1 - Machine a emballer sous vide moulee par injection - Google Patents

Machine a emballer sous vide moulee par injection Download PDF

Info

Publication number
WO2002010017A1
WO2002010017A1 PCT/US2001/024497 US0124497W WO0210017A1 WO 2002010017 A1 WO2002010017 A1 WO 2002010017A1 US 0124497 W US0124497 W US 0124497W WO 0210017 A1 WO0210017 A1 WO 0210017A1
Authority
WO
WIPO (PCT)
Prior art keywords
machine
lid
basin
recited
injection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2001/024497
Other languages
English (en)
Inventor
Stephen E. Kingeter
James R. Harte
Thomas D. Ritter
Timothy A. Grove
Michael L. Kennedy
Bryon London
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koch Equipment LLC
Original Assignee
Koch Equipment LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koch Equipment LLC filed Critical Koch Equipment LLC
Priority to AU2001279192A priority Critical patent/AU2001279192A1/en
Publication of WO2002010017A1 publication Critical patent/WO2002010017A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas

Definitions

  • This invention relates to a vacuum packaging machine having an injection-molded lid and basin comprised of an impact-modified resin.
  • Vacuum packaging is the process of removing air from around a product and then sealing that product in an airtight environment.
  • Vacuum packaging machines have a wide variety of food and non-food applications.
  • a vacuum packaging machine may protect food from contamination from the air, the most common cause of spoilage.
  • the machine may also be used for storing medical applications or electronic components.
  • vacuum packaging machines are well-known in the art. They vary in size from small table-top machines to large free-standing machines.
  • Applicant manufactures a series of table-top vacuum packaging machines marketed under the name ULTRA VAC ® , the features of which are incorporated herein by reference.
  • the machines are comprised of a vacuum chamber made of a basin and a lid. After opening the lid, the product to be vacuum-sealed is inserted into the chamber in a plastic pouch and laid across a seal bar. Once the lid is closed, a pump creates a vacuum inside the chamber and pouch to remove all of the atmosphere inside. The product is then hermetically sealed by heat and pressure from the seal bars.
  • Some vacuum packaging machines contain a glass window in the lid to enable the user to view the contents of the chamber. All vacuum chambers, including those utilized in Applicant's
  • vacuum chambers should preferably be designed to withstand a vacuum pressure of 5 torr. Moreover, the chamber should be preferably built to withstand approximately 100,000 cycles annually.
  • vacuum packaging machines utilize a stainless steel chamber.
  • the chamber is made from heavy gauge sheet material with structural members to create a chamber using break and weld construction. This process has both high material and labor costs.
  • Another vacuum packaging chamber is made from aluminum castings designed with appropriate structures to withstand the load. While this process has lower material and labor costs, it does require subsequent machining and has high tooling costs. In addition, aluminum castings are not inherently hygienic.
  • the present invention provides a vacuum packaging machine having an injection-molded lid and an injection-molded basin comprised of a high-strength material that can be manufactured at a low cost.
  • the chamber can withstand vacuum pressures of 5 torr.
  • the invention can withstand 100,000 cycles of use annually.
  • the machine further has negligible or no shrink rate so that the chamber does not warp.
  • the machine is not susceptible to creep upon exposure to heat.
  • FIG. 1 is an illustration of the injection-molded vacuum packaging machine having an injection-molded lid and basin wherein the lid is in the open position.
  • FIG. 2 is a side view of the vacuum packaging machine of the present invention with the side of the skirt removed to show the interior components of the machine.
  • FIG. 3 is a perspective view of the lid and a hinge block removed from the machine.
  • FIG. 4 is a top view of the lid of the vacuum packaging machine.
  • FIG. 5 is a bottom view of the lid of the vacuum packaging machine.
  • FIG. 6 is a two-dimensional cross-section of the vacuum packaging machine taken through line ⁇ 1 in FIG. 4.
  • FIG. 7 is a two-dimensional cross-section of the lid of the vacuum packaging machine taken through line 7 1 -7 1 in FIG. 5.
  • FIG. 8 is an expanded perspective view of the basin, seal bar, and seal bladder of the vacuum packaging machine.
  • FIG. 9 is a top view of the basin of the vacuum packaging machine.
  • FIG. 10 is a bottom view of the basin of the vacuum packaging machine.
  • FIG. 11 shows a front view of the basin of the vacuum packaging machine.
  • FIG. 12 is a back view of the basin of the vacuum packaging machine.
  • FIG. 13 is a side view of the basin of the vacuum packaging machine.
  • FIG. 14 is a two-dimensional cross-section of the basin taken through line -U 1 in FIG. 10.
  • FIG. 15 is a two-dimensional cross-section of the basin taken through lines lS 1 - ⁇ 1 in FIG. 9. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • the present invention relates to a vacuum packaging machine 10, and in particular to the chamber 20 of the vacuum packaging machine 10, which is comprised of an injected molded lid 30 and basin 25. While the chamber 20 of the present invention could be designed for vacuum packaging machines of various types and sizes, the preferred embodiment of the present invention is a chamber design for a table top type vacuum packaging machine 10, as illustrated in FIG. 1.
  • FIG. 1 illustrates the table top vacuum packaging machine with the lid 10 in the "open position" to allow an operator to load the machine 10 with product (not shown) to be vacuum sealed.
  • FIG. 2 illustrates the vacuum packaging machine 10 in the closed position.
  • the vacuum chamber 20 sits on and within a rectangular skirt 14, which houses the interior components of the vacuum packaging machine 10, such as the vacuum pump 15, the hinge block 18 and lid spring 19, which fastens the chamber lid 30 to the basin 25, and the control panel 16.
  • the product (not shown) to be vacuum-sealed is inserted into the chamber 20 in a plastic pouch (not shown) and laid across a seal bar 11.
  • a pump creates a vacuum inside the chamber 20 and pouch to remove nearly all of the atmosphere inside.
  • the product is then hermetically sealed by heat and pressure from the seal bars 11. Because of the vacuum being pulled through the chamber 20, the lid 30 and basin 25 of the chamber 20 of the vacuum machine 10 must be designed to withstand a vacuum pressure of at least 5 torr and built to withstand approximately 100,000 cycles annually.
  • both the basin 25 and lid 30 of the chamber 20 of the present invention are preferably molded from IOSPLAST ® 101-LGF-40 (Dow Chemical Company) or Celstran TPU-GF30- 01 (Ticona, Wynona, MN), but may be made of any typical injection molding material capable of withstanding high vacuum pressures.
  • the injection- molding machine (not shown) used to create the lid 30 and chamber 25 preferably has a tonnage of 1000 and a barrel size of 225 oz. Processing cycle times range from about 152 to 162 seconds with a standard injection time of about 4.5 seconds, injection hold time of about 4.0 seconds, and a cooling time of about 120.0 seconds.
  • Nozzle temperatures range in the area of about 460 °F.
  • Injection molding pressures are in the range of 1400 to 1500 psi, with a hold pressure of 500 and a back pressure of 10 psi.
  • the shot size is 14.91 lbs. for the basin and 9.33 lbs. for the lid.
  • the dryer temperature is about 180 °F with an approximate drying time of 4 hours.
  • the chamber lid 30 of the present invention is best illustrated in FIGS. 1 and 3-7.
  • the lid 30 is generally rectangular and concave in shape and, in the preferred embodiment, measures 563.0 mm by 474.0 mm and has a depth of 97.5 mm.
  • the lid 30 comprises a continuous piece of material made from an injection molding process, the lid 30 has a number of functional attributes that shall be separately described.
  • the embodiment of the lid described herein relates to one for a table-top vacuum- packaging machine, one skilled in the art will recognize that various attributes may be modified, removed, or added when used in connection with different vacuum packaging machines.
  • the lid 30 is comprised of a top rectangular piece 35.
  • the lid 30 has a concave shape.
  • the top rectangular piece 35 has both an outer surface 37 and an inner surface 39.
  • a rectangular L-shaped ledge 57 extends from the inner surface 39 into the hole 40.
  • the L-shaped ledge 57 supports a rectangular piece of glass (not shown) for viewing the contents of the chamber 20.
  • the rectangular hole measures 241.3 mm by 165.1 mm, and the ledge extends into the hole 12.7 mm.
  • each of the four side pieces 60, 70, 80 and 90 contains two sections: an upper section (62, 72, 82, 92) and a lower section (64, 74, 84, 94).
  • the lower section is positioned more vertically (relative to the top rectangular piece 35) than the upper section in order to give the lid 30 a more concave shape overall (see FIGS. 1 and 3).
  • the area where the top rectangular piece 35 meets each upper section is rounded, having a radius of 25.4 mm in the preferred embodiment.
  • the area where the each upper section meets each corresponding lower section is also rounded, having a radius of 22.2 mm.
  • the upper section and lower section may have a different thickness.
  • the upper section (62, 72, 82, 92) has a thickness of 7.0 mm while the lower section (64, 74, 84, 94) has a thickness of 6.4 mm.
  • Each of the four trapezoidal side pieces 60, 70, 80, 90 further contains two faces: an outer face (66, 16, 86, 96) and an inner face (68, 78, 88, 98).
  • the lower section (64, 74, 84, 94) of each side piece also contains a rounded bulging edge 50 with a groove 52.
  • a two-dimensional cross-section of the rounded bulging edge 50 and the groove 52 is depicted in FIG. 6.
  • the groove 52 has a width of 8.0 mm and a depth of 5.8 mm.
  • the exterior edges 53 and the interior edges 55 of the groove 52 are rounded, having a radius of 1.2 mm and 2.4 mm, respectively. As shown in FIG. 3, the lid gasket 17 fits into the groove 52.
  • Trapezoidal side piece 60 further contains an L-shaped handle 100 extending from the lower section 64.
  • the handle 100 has a preferable thickness of 6.35 mm. A cross-section of the handle 100 is shown in FIG. 6.
  • Trapezoidal side piece 80 contains two hinge extensions 105 located in outer face 86 of the lower section 84.
  • the lid 30 is connected to the basin 25 using the hinge assembly described in Harte, U.S. Patent No. 5,465,557, assigned to Koch Supplies Inc., which is fully incorporated here by reference.
  • the hinge extensions 105 which contain one or more screw holes 107, are used to connect the injection molded lid 30 to two hinge blocks 18 (see FIG. 1).
  • a two-dimensional cross-section of one of the hinge extensions is shown in FIG. 7.
  • Various other hinge assemblies may be used to mount the lid 30 to the basin 25.
  • the lid 30 may contain one or more reinforcement bars 120.
  • the reinforcement bars 120 span part of the ledge 57, the inner surface 39 of the top rectangular piece 35, and the inner faces 68, 78, 88, 98 of the four trapezoidal side pieces 60, 70, 80, 90.
  • the reinforcement bars 120 are positioned to form a grid in the shape of a "tic-tac- toe" square, each bar being parallel to one other bar and perpendicular to two other bars.
  • the bars 120 are positioned so that the "center square" formed by the bars outlines part of the L-shaped ledge 57 in the lid 30.
  • the bars have preferred thickness of 5.1 mm and a height of 29.4 mm.
  • the four rounded corners 150, 160, 170, 180 each contain features designed for additional strength.
  • the thickness of the lid at the corners is gradually increased. In the preferred embodiment, the thickness of the corners is increased by 3.2 mm at the corners.
  • the corners 150, 160, 170, 180 may contain one or more reinforcement strips 190.
  • the reinforcement strips 190 preferably extend from the reinforcement bars 120 to the rounded bulging edge 50 located near the hinge extensions 105. These reinforcement strips 190 thus provide the lid 30 with additional strength near the hinge extensions 105.
  • the inner faces 68, 78, 88, 98 of the upper sections 62, 72, 82, 92 of each trapezoidal side piece also contain an attachment boss 194.
  • the lid-gasket 17 and a hinge block 18 are attached to the basin and used to anchor the lid 30 to the basin 25.
  • FIG. 8 shows an expanded perspective view of the injection molded basin 25 with a seal bar 11 and seal bladder 13.
  • the basin 25 comprises a continuous piece of material made from an injection molding process
  • the basin 25 has a number of functional attributes that shall be describe separately.
  • the embodiment for the basin described herein relates to one for a table-top vacuum-packaging machine, one skilled in the art will recognize that the various attributes may be modified, removed, or added when used in conjunction with a different vacuum packaging machine.
  • the basin 25 is comprised of a bottom wall 210 having an interior surface 215 and exterior surface 217 and four side walls 220, 230, 240, and 250, each having an interior face (222, 232, 242, 252) and an exterior face (224, 234, 244, 254).
  • the bottom wall measures 495.0 mm x 422.0 mm x 6.4 mm and is slightly concave, having a depth of 3.8 mm.
  • the side walls have a thickness of 6.5 mm.
  • the four side walls 220, 230, 240, 250 are connected to each other so as to form a rounded corner having a radius of 6.4 mm (see FIG. 8).
  • the four side walls are connected to the bottom wall 210 to form a rounded connection having a radius of 6.4 mm (see FIG. 8). Extending from three of the side walls 220, 230, 240 is an L-shaped lip
  • the lip 260 has a horizontal portion 262 measuring 40.2 mm and a vertical portion 264 measuring 25.0 mm.
  • the vertical portion 264 has a 14.2 mm thickness.
  • the vertical portion 264 contains a vertical slit 266. During operation, the skirt 14 fits into the slit 266 and connects the skirt 14 to the basin 25.
  • a flattened edge 270 extends horizontally from side wall 250.
  • the flattened edge 270 has a width of 95.2 mm.
  • the basin has a total length of 633.7 mm (measured as a 495.0 mm bottom piece and a 92.2 mm flattened edge).
  • the edge 270 contains two hinge slots 275.
  • the two hinge slots 275 receive the two hinge blocks 18 used to fasten the lid 30 to the basin 25.
  • the flattened edge 270 also contains four strength strips 218 in each corner. Each strength strip 218 contains a slot 219.
  • the basin 25 may contain one or more strength ribs.
  • seven u-shaped strength ribs 280 span the exterior surface 217 and exterior faces 224 and 234 along the length of the basin 25.
  • Each corner of the "U” has a radius of 24.4 mm (see FIG. 8).
  • the thickness of the strength ribs is 3.79 mm along the exterior surface 217 and is thinner along exterior faces 224 and 234.
  • Each corner of the "U” has a radius of 24.4 mm (see FIG. 8).
  • Part of two of the four-u-shaped strength ribs 291 are positioned on exterior faces 254 adjacent to each hinge slot 275 and contain one or more pivot holes 277.
  • Two hinge plates 279 also having pivot holes 277 extend from exterior faces 254 adjacent to each hinge slot 275.
  • the ribs 291 and the hinge plates 279 are used to fasten a hinge block 18 to the basin 25.
  • a fifth L-shaped strength rib 293 spans the exterior surface 217 and the exterior face 244 (but not exterior 254).
  • FIG. 12 shows a vacuum hole 256 for receiving a vacuum hose (not shown) and two vacuum block screw holes 257 used to mount the vacuum block assembly 255.
  • the strength ribs 290, 293 spanning the length of the basin 25 and the strength ribs 280 spanning the width of the basin 25 together form a grid along the exterior surface 217 of the bottom wall 210 of the basin 25.
  • the strength ribs have a thickness ranging from 2.5 to 7.0 mm.
  • the strength ribs are generally wider along the exterior surface 217 as compared to the exterior faces 224, 234, 244, 254.
  • the strength ribs have a width of 25.5 mm along the exterior faces 224, 234, 244, 254 and a width of 41.3 mm along the exterior surface 217.
  • the bottom wall 210 contains several features useful in the function of the packaging machine 10. As shown in FIGS.
  • the bottom wall 210 has a seal bladder barb 300.
  • the bladder barb 300 has an outer radius of 30.0 mm and an inner radius of 19.9 mm.
  • the bottom wall 210 also contains two vertical pins 305 that operate as a guide for the seal bar 11.
  • the vertical pins 305 have a height of 20.8 mm and a radius of 12.6 mm.
  • FIGS. 9 and 15 further show that extending from the bottom wall 210 along the interior faces 222, 232 of side walls 220, 230 are two vertical bars 310 that operate as a guide for the filler plates in the machine.
  • FIG. 10 illustrates that the basin 25 contains two spring bosses 315.
  • a spring extends between each hinge block 18 and the spring bosses 315 as shown in FIG. 2.
  • Six holes 320 are located along strength bars 280 to permit attachment of wires and vacuum hoses (not shown) needed to operate the machine.
  • Two apertures 325 are located in the bottom wall 210 to permit attachment of wires for the seal bar.
  • strength bars 280, 290, and 293 contain a number of cylindrical ejector pin bosses (not depicted in the drawings). In the preferred embodiment, there are approximately 26 ejector pin bosses located on strength bars 280 and 290 along the exterior surface 217 of the basin.

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

L'invention concerne une machine à emballer sous vide qui comporte une chambre constituée d'un couvercle moulé par injection et d'un récipient moulé par injection.
PCT/US2001/024497 2000-08-02 2001-08-02 Machine a emballer sous vide moulee par injection Ceased WO2002010017A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001279192A AU2001279192A1 (en) 2000-08-02 2001-08-02 Injection-molded vacuum packaging machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63092800A 2000-08-02 2000-08-02
US09/630,928 2000-08-02

Publications (1)

Publication Number Publication Date
WO2002010017A1 true WO2002010017A1 (fr) 2002-02-07

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Family Applications (1)

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PCT/US2001/024497 Ceased WO2002010017A1 (fr) 2000-08-02 2001-08-02 Machine a emballer sous vide moulee par injection

Country Status (3)

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US (1) US20040031245A1 (fr)
AU (1) AU2001279192A1 (fr)
WO (1) WO2002010017A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7003928B2 (en) 2002-10-04 2006-02-28 Jcs/Thg, Llc Appliance for vacuum sealing food containers
US7131250B2 (en) 2002-10-04 2006-11-07 Jcs/Thg, Llp Appliance for vacuum sealing food containers
US7204067B2 (en) 2003-02-27 2007-04-17 Sunbeam Products, Inc. Vacuum packaging appliance with removable trough
US7231753B2 (en) 2002-10-04 2007-06-19 Sunbeam Products, Inc. Appliance for vacuum sealing food containers
US7464522B2 (en) 2003-07-31 2008-12-16 Sunbeam Products, Inc. Vacuum packaging appliance
US7478516B2 (en) 2003-07-31 2009-01-20 Sunbeam Products, Inc. Vacuum packaging appliance
WO2016062406A1 (fr) * 2014-10-24 2016-04-28 Michatek, K. S. Tiroir à vide à couvercle actionnable pour mettre sous vide des denrées alimentaires
IT201700098246A1 (it) * 2017-09-01 2019-03-01 Marziano Salvaro Macchina confezionatrice sottovuoto.
IT201800003801A1 (it) * 2018-03-21 2019-09-21 Marziano Salvaro Macchina confezionatrice di prodotti alimentari in sacchetti sottovuoto.

Families Citing this family (10)

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US20050022473A1 (en) * 2003-07-31 2005-02-03 Small Steven D. Removable drip trays and bag clamps for vacuum packaging appliances
US20050034427A1 (en) * 2003-07-31 2005-02-17 Landen Higer Vacuum sealing system with a sealing element inside an evacuation chamber
US7571748B2 (en) * 2006-02-17 2009-08-11 Mini-Dolphin Industrial Co., Ltd. Vacuum container
DE102008053665A1 (de) * 2008-10-29 2010-05-12 Multivac Sepp Haggenmüller Gmbh & Co. Kg Verpackungsmaschine mit hygienischer Haube
IT1398880B1 (it) * 2009-11-11 2013-03-21 Minipack Torre Spa Macchina confezionatrice perfezionata.
ITTO20120159A1 (it) * 2012-02-23 2012-05-24 Minipack Torre Spa MACCHINA CONFEZIONATRICE PER SOTTOVUOTO A CAMERA INTERNA ESTRAIBILE E DI COTTURA A BASSA TEMPERATURA ÂeuroOESOUS VIDEÂeuro¿.
US9708088B2 (en) * 2013-08-26 2017-07-18 Hantover, Inc. Combination chamber and external suction vacuum packaging machine
USD774577S1 (en) * 2014-08-26 2016-12-20 Hantover, Inc. Combination vacuum packaging machine
WO2016197134A1 (fr) * 2015-06-05 2016-12-08 Sunbeam Products, Inc. Appareil de stockage d'aliments
CN112937987A (zh) * 2021-02-10 2021-06-11 广州亚俊氏电器有限公司 一种多功能真空包装机

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US4294056A (en) * 1978-10-04 1981-10-13 Ralf Paulsen Vacuum packaging machine
US5239808A (en) * 1992-05-13 1993-08-31 Hantover, Inc. Vacuum packaging machine
GB2295985A (en) * 1994-12-15 1996-06-19 Silkjet Ltd A container

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7454884B2 (en) 2002-10-04 2008-11-25 Sunbeam Products, Inc. Appliance for vacuum sealing food containers
US7131250B2 (en) 2002-10-04 2006-11-07 Jcs/Thg, Llp Appliance for vacuum sealing food containers
US7003928B2 (en) 2002-10-04 2006-02-28 Jcs/Thg, Llc Appliance for vacuum sealing food containers
US7231753B2 (en) 2002-10-04 2007-06-19 Sunbeam Products, Inc. Appliance for vacuum sealing food containers
US7401452B2 (en) 2002-10-04 2008-07-22 Sunbeam Products, Inc. Appliance for vacuum sealing food containers
US7484346B2 (en) 2003-02-27 2009-02-03 Sunbeam Products, Inc. Vacuum packaging appliance with removable trough
US7204067B2 (en) 2003-02-27 2007-04-17 Sunbeam Products, Inc. Vacuum packaging appliance with removable trough
US7464522B2 (en) 2003-07-31 2008-12-16 Sunbeam Products, Inc. Vacuum packaging appliance
US7478516B2 (en) 2003-07-31 2009-01-20 Sunbeam Products, Inc. Vacuum packaging appliance
WO2016062406A1 (fr) * 2014-10-24 2016-04-28 Michatek, K. S. Tiroir à vide à couvercle actionnable pour mettre sous vide des denrées alimentaires
CN107000871A (zh) * 2014-10-24 2017-08-01 米恰特克公司 用于将食品真空封装的具有可操作的盖的真空抽屉
CN107000871B (zh) * 2014-10-24 2019-05-31 米恰特克公司 用于将食品真空封装的具有可操作的盖的真空抽屉
US10383348B2 (en) 2014-10-24 2019-08-20 Michatek, K.S. Vacuum drawer for vacuumizing foodstuffs with actuatable lid
IT201700098246A1 (it) * 2017-09-01 2019-03-01 Marziano Salvaro Macchina confezionatrice sottovuoto.
IT201800003801A1 (it) * 2018-03-21 2019-09-21 Marziano Salvaro Macchina confezionatrice di prodotti alimentari in sacchetti sottovuoto.
EP3543153A1 (fr) * 2018-03-21 2019-09-25 Marziano Salvaro Machine a emballer sous vide des produits alimentaires dans des sacs

Also Published As

Publication number Publication date
AU2001279192A1 (en) 2002-02-13
US20040031245A1 (en) 2004-02-19

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