WO1995019916A1 - Small box made of plastic material - Google Patents
Small box made of plastic material Download PDFInfo
- Publication number
- WO1995019916A1 WO1995019916A1 PCT/FR1995/000071 FR9500071W WO9519916A1 WO 1995019916 A1 WO1995019916 A1 WO 1995019916A1 FR 9500071 W FR9500071 W FR 9500071W WO 9519916 A1 WO9519916 A1 WO 9519916A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crate
- crates
- plastic
- sides
- flanks
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
- B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
- B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
- B65D21/0215—Containers with stacking feet or corner elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/261—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for draining or collecting liquids without absorbing them
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/30—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure
- B65D85/34—Containers, packaging elements or packages, specially adapted for particular articles or materials for articles particularly sensitive to damage by shock or pressure for fruit, e.g. apples, oranges or tomatoes
Definitions
- the invention relates to a plastic crate intended in particular for packaging and transporting fruit and vegetables.
- Wooden and cardboard crates have major drawbacks in common.
- a first of these drawbacks is their permeability to water. This permeability is particularly sensitive in the case of cardboard crates, the mechanical strength of which decreases appreciably in the presence of moisture. In all cases, the permeability of wood and cardboard requires covered storage places. In addition, it significantly alters the weight of the tare constituted by each crate, contrary to the requirements of the regulations in force, which impose a fixed tare.
- a third drawback common to wooden and cardboard crates concerns their flammable nature and the risks which result therefrom during their storage, whether empty or full.
- the stacking of crates during their storage is penalized by the thickness of the bottom of the crate in line with the corner pillars.
- the use of injection molding results in giving the walls of the crates a grid-like structure which risks injuring the products transported, especially when it comes to fruit.
- the sides of the crates thus produced are rigid and risk bruising the products when they are put in place.
- the structure of the molded plastic crates gives them a vertical size comparable to that of wooden crates when the crates are stacked on pallets.
- the plastic crates thus produced do not have the drawbacks of molded plastic crates produced by injection.
- the continuous manufacturing permitted by extrusion makes it possible to reduce the cost appreciably and even to bring it to a level lower than that of wooden and cardboard crates.
- the structure of crates give their sides a certain elasticity which prevents bruising of the transported products.
- the vertical size of a stack of crates can be reduced compared to a stack of crates made of wood or molded plastic. An increase of approximately 10% in the filling rate can thus be achieved.
- the products transported in such a crate risk of being injured by the edges of the holes formed in the sides and in the bottom of the crate and the flow of water and any other liquid present in the products transported. is not certain.
- a risk of skidding or slipping of the crates when they are placed on a conveyor is not completely avoided.
- the crates obtained by the method described in document WO-A-92 09488 are not positioned relative to one another during their stacking.
- the subject of the invention is precisely a plastic crate having the main characteristics of the crate obtained by the method described in document WO-A-92 09488 and the original design of which simultaneously makes it possible to avoid any risk of injuring transported products, to ensure the efficient flow of liquids, to avoid any slipping of the crate when it is placed on a conveyor, and to facilitate the relative positioning of the crates during their stacking, without increasing the cost of these crates and without the other advantages in- inherent to plastic crates are not removed.
- this result is obtained by means of a plastic crate comprising a rectangular bottom, four flanks and four hollow corner pillars, at least the bottom and the flanks being produced in a plastic strip which comprises holes each surrounded by a thermoformed protruding part, characterized in that the protruding parts are oriented towards the outside of the crate and that at least two of these protruding parts are formed in the bottom of the crate, in the extension of at least two of the four hollow corner pillars, so as to be able to penetrate into the hollow corner pillars of an adjacent lower shelf.
- the strip advantageously comprises, at least in the bottom of the crate, at least one thermoformed bulge, not perforated, located between the projecting parts and oriented towards the inside of the crate.
- this bulge can be unique and distributed over the entire surface located between the projecting parts, or include several bosses located between these projecting parts.
- the sides of the crate are advantageously elastic so that the products placed in the crate are not bruised when they are put in place.
- each of them advantageously comprises an upper edge folded outwards from the crate at an angle at least equal to approximately 90 °.
- the upper edges are advantageously interrupted substantially opposite the hollow corner pillars, so that vertical angles can be placed in the corners of the crates when stacked on pallets, according to a usual technique.
- the crate is advantageously made of a transparent or translucent plastic material. This characteristic makes it possible to easily control the products contained in a stack of pallets and in particular to know the nature, the size, the state of progress, etc., which constitutes an essential advantage compared to existing crates.
- FIG. 1 is a perspective view showing a plastic crate according to
- FIG. 2 is an enlarged view in vertical section, of the crate of Figure 1;
- FIG. 3 is a vertical sectional view schematically and partially illustrating the stack of three crates according to the invention.
- FIG. 4 is a perspective view showing a set of crates according to the invention stored on a pallet and held at their outside angles by vertical angles.
- the reference 10 generally designates a crate made entirely of plastic, according to the invention.
- This crate is preferably manufactured by extrusion and / or by calendering, for example from two extruded profiles according to a process comparable to that which is described in document OA-92 09488.
- crate 10 can also be manufactured by extrusion and / or calendering from a single profile in the form of a flat strip cut, perforated, thermoformed, folded and welded.
- the plastic crate of Figure 1 can also be injection molded, then thermoformed. However, the cost is then significantly higher, in particular because of the discontinuous nature of such a process.
- the crate 10 illustrated in FIG. 1 comprises a rectangular bottom 12, substantially planar, four rectangular flanks, also planar, including two lateral flanks 14 and two end flanks 16, and four hollow corner pillars 18.
- the lateral flanks 14 are parallel to each other and rise at a right angle from the two opposite lateral edges of the bottom 12 of the crate.
- the end flanks 16 are parallel to each other and rise at right angles from the end edges of the bottom 12.
- the bottom 12 like the flanks 14 and 16 are produced in a flat strip of thin plastic material (for example between approximately 0.8 mm and approximately 2 mm). '
- the height of the lateral flanks 14 may be less (as illustrated in FIG. 1) or equal to that of the end flanks 16.
- the hollow corner pillars 18 rise vertically from the four angles of the rectangle formed by the bottom 12 of the crate, along the junctions between the lateral flanks 14 and the end flanks 16, over a height equal to that of these.
- the pillars 18 are hollow, that is to say that they are traversed over their entire height by a vertical passage making it possible in particular to lighten them and reduce the amount of material necessary for the manufacture of the crate, as well as the cost of the latter.
- Each of the hollow corner pillars 18 has in horizontal section the shape of a right triangle whose hypotenuse can be straight, as shown in Figure 1, or slightly curved.
- the two sides of the right angle formed by this right triangle are in contact with the sides 14 and 16 in the corresponding angle of the crate.
- the hollow corner pillars 18 are obtained by folding, in the same strip of plastic material as that in which the bottom 12 and the sides 14 and 16 of the crate are made. Given the thinness of the strip in which are made at least the bottom 12 and the sides 14 of the crate 10, these flat parts have a certain flexibility, or elasticity. This characteristic makes it possible not to bruise products such as fruits which are placed in the crate. Indeed, it is mainly the sides of the crate that deform, not the products it contains.
- the bottom 12 and the flanks 14 and 16 of the crate 10 according to the invention are crossed by holes 20 whose shape, dimensions and distribution can take very varied aspects.
- the holes 20 are of circular shape and they are distributed in a network with triangular pitch over the entire surface of the bottom 12 and the sides 14 and 16.
- a the non-perforated area is advantageously provided on at least one of the sides 14 and 16, to allow marking of the crate, for example by screen printing. This avoids the addition of another material to the plastic material in which the crate is made.
- each of the holes 20 is surrounded by a projecting part 22, obtained by thermoforming the strip in which the bottom 12 and the sides 14 and 16 are made. More precisely, the projecting parts 22 are oriented towards the outside of the crate with respect to the plane formed by the bottom or by the sides thereof. In the case where the holes 20 are circular, the protruding parts 22 have for example a frustoconical shape. A different form can however be adopted without departing from the scope of the invention.
- the parts in protrusion 22 are always produced by thermoforming, so as to generate a prestress in the plastic.
- the holes 20 and the projecting parts 22 which surround them fulfill a large number of functions.
- the first of these functions is an aeration function for the products transported in the crates. It should be noted that this aeration can practically be carried out on demand since the shape, the size and the distribution of the holes 20 can vary in very large proportions, without consequence on the mechanical behavior of the crate.
- a second function fulfilled by the projecting parts 22 surrounding the holes 20 is a function of stiffening the strip constituting the bottom and the sides of the crate.
- This stiffening is especially important in the bottom of the crate, the deformation of which must not take on too great an amplitude when it is filled, to prevent the fruits or vegetables of a lower crate from being injured by the edges of the holes. 20 when the crates are stacked.
- the stiffening of the flanks 14 and 16 should not be too great, so that the latter retain sufficient flexibility or elasticity so as not to bruise the fruits. For this reason, the density of the holes 20 will generally be greater in the bottom 12 of the crate than on the sides 14 and 16.
- Another function results from the orientation of the protruding parts 22 towards the outside of the crate. This characteristic makes it possible to prevent the products contained in the crate from being in contact with the edges of the holes 20. Consequently, any risk of seeing these products injured by these edges is avoided. It should be noted that the shapes and dimensions of the holes 20 may be different according to the type of product transported in the crate and in particular according to the size of this product, so that the risk of the aforementioned injury is completely avoided in all cases.
- the holes 20 as well as the outward orientation of the projecting parts 22 which surround them also have the function of permanently facilitating the flow of water and any other liquid such as fruit treatment products and vegetables, essential for the good conservation of these.
- the presence of the holes 20 makes it possible to lighten the crates and to reduce the quantity of plastic material used in their manufacture, and consequently their cost.
- the bottom 12 of the crate has in each of its angles a hole 20a which may have the same shape and the same dimension as the holes 20 or a different shape and dimension.
- This hole 20a is placed in the extension of the vertical passage formed in the hollow corner pillar 18 which rises above this angle. This hole 20a allows water and the various liquids liable to enter the corner pillars to flow by gravity.
- the holes 20 At least two of the four holes 20a located in the corners of the bottom 12 are surrounded by a part 22a, projecting outwards, that is to say downwards, from the bottom 12.
- this arrangement makes it possible to position and maintain the crates 10 one above the other when they are stacked. Indeed, the projecting parts 22a of each of the crates 10 then enter the vertical passage formed in the corresponding hollow corner pillar 18 of the adjacent lower crate.
- bosses 24 situated between the projecting parts 22 and oriented towards the inside of the crate.
- these bosses 24 can take various forms which are not limited to the spherical cap shape illustrated in FIG. 2.
- the bulging of the bottom 12 and possibly of the sides 14 and 16 towards the inside of the crate can be distributed over the entire surface located between the protruding parts 22.
- each of the four flanks 14 and 16 has an upper edge 26, folded towards the outside of the crate 10 at an angle at least equal to approximately 90 °. This characteristic makes it possible to strengthen and stiffen the sides 14 and 16. It also makes it possible to eliminate any risk of cutting for people handling the crates.
- each of the flanks 14 and 16 is interrupted before the ends of these flanks, substantially opposite the hollow corner pillars 18.
- the interruption is preferably progressive, c '' that is to say beveled or rounded in order to avoid, again, any risk of cutting people handling the crates.
- the plastic material in which the crates 10 are made is a translucent or even transparent plastic material, which facilitates the control of the products stored or transported in the crates. Indeed, this characteristic makes it possible to easily check the nature of the products, their size, their state of progress, etc.
- the plastic material in which the pallets 10 are made can also be opaque.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Stackable Containers (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Packaging Frangible Articles (AREA)
- Cartons (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL95315546A PL315546A1 (en) | 1994-01-24 | 1995-01-23 | Small box made of plastic material |
BR9506611A BR9506611A (en) | 1994-01-24 | 1995-01-23 | Crate made of plastic material |
AU15807/95A AU1580795A (en) | 1994-01-24 | 1995-01-23 | Small box made of plastic material |
RO96-01444A RO118195B1 (en) | 1994-01-24 | 1995-01-23 | Box for storing and carrying fruit and vegetables |
SK925-96A SK92596A3 (en) | 1994-01-24 | 1995-01-23 | Small box made of plastic material |
EP95907689A EP0737154A1 (en) | 1994-01-24 | 1995-01-23 | Small box made of plastic material |
JP7519388A JPH09511473A (en) | 1994-01-24 | 1995-01-23 | Plastic crate |
BG100725A BG100725A (en) | 1994-01-24 | 1996-07-18 | Plastic crate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR94/00704 | 1994-01-24 | ||
FR9400704A FR2715373B1 (en) | 1994-01-24 | 1994-01-24 | Plastic crate. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995019916A1 true WO1995019916A1 (en) | 1995-07-27 |
Family
ID=9459309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1995/000071 WO1995019916A1 (en) | 1994-01-24 | 1995-01-23 | Small box made of plastic material |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0737154A1 (en) |
JP (1) | JPH09511473A (en) |
AU (1) | AU1580795A (en) |
BG (1) | BG100725A (en) |
BR (1) | BR9506611A (en) |
CA (1) | CA2181372A1 (en) |
CZ (1) | CZ206696A3 (en) |
FR (1) | FR2715373B1 (en) |
HU (1) | HUT73882A (en) |
PL (1) | PL315546A1 (en) |
RO (1) | RO118195B1 (en) |
SK (1) | SK92596A3 (en) |
WO (1) | WO1995019916A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0916584A1 (en) * | 1997-11-14 | 1999-05-19 | Sharp Kabushiki Kaisha | Packaging Tray |
WO2005066039A1 (en) * | 2004-01-05 | 2005-07-21 | Joon-Young Ahn | Container for vacuum packing |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4736078B2 (en) * | 2001-07-10 | 2011-07-27 | 株式会社明治ゴム化成 | Plastic container |
FR2827740B1 (en) * | 2001-07-24 | 2005-10-28 | Crusta D Oc | METHOD FOR COOKING CRUSTACEANS AND / OR SHELLS AND PACKAGING THEREFOR |
EP1524202A1 (en) * | 2003-10-15 | 2005-04-20 | Cryovac, Inc. | Thermoformed plastic container and methods for its manufacture |
EP1544129B1 (en) * | 2003-10-15 | 2010-05-05 | Cryovac, Inc. | Thermoformed plastic container and method for its manufacture |
IES20090539A2 (en) * | 2009-07-15 | 2011-01-19 | Joseph Patrick Kelly | A storage device and storage system |
CN103171828A (en) * | 2013-03-28 | 2013-06-26 | 浙江大学 | Fruits and vegetables temperature control storage and transportation dedicated plastic pass box unit with hold-over plate for insulating truck |
CL2016000856A1 (en) * | 2016-04-12 | 2017-07-14 | Wenco Sa | Plastic container for storage and transport of agricultural products; method to stack containers. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1432326A (en) * | 1965-05-05 | 1966-03-18 | Container | |
FR2019196A1 (en) * | 1968-09-30 | 1970-06-26 | Marcan Betty | |
US4210274A (en) * | 1978-01-06 | 1980-07-01 | Lionel Leonard | Boxes |
US4251006A (en) * | 1980-01-10 | 1981-02-17 | The Dow Chemical Company | Crate assembly and materials therefor |
FR2574052A1 (en) * | 1984-11-30 | 1986-06-06 | Zagoyan Gerard | Crate for packaging foodstuffs, blank developed for producing it and manufacturing method |
DE9311119U1 (en) * | 1993-05-15 | 1993-09-16 | Hummer Edda | Device for packaging and transporting sensitive objects, in particular fruits and vegetables |
-
1994
- 1994-01-24 FR FR9400704A patent/FR2715373B1/en not_active Expired - Fee Related
-
1995
- 1995-01-23 CZ CZ962066A patent/CZ206696A3/en unknown
- 1995-01-23 PL PL95315546A patent/PL315546A1/en unknown
- 1995-01-23 EP EP95907689A patent/EP0737154A1/en not_active Withdrawn
- 1995-01-23 RO RO96-01444A patent/RO118195B1/en unknown
- 1995-01-23 HU HU9601999A patent/HUT73882A/en unknown
- 1995-01-23 BR BR9506611A patent/BR9506611A/en not_active Application Discontinuation
- 1995-01-23 WO PCT/FR1995/000071 patent/WO1995019916A1/en not_active Application Discontinuation
- 1995-01-23 AU AU15807/95A patent/AU1580795A/en not_active Abandoned
- 1995-01-23 CA CA 2181372 patent/CA2181372A1/en not_active Abandoned
- 1995-01-23 JP JP7519388A patent/JPH09511473A/en active Pending
- 1995-01-23 SK SK925-96A patent/SK92596A3/en unknown
-
1996
- 1996-07-18 BG BG100725A patent/BG100725A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1432326A (en) * | 1965-05-05 | 1966-03-18 | Container | |
FR2019196A1 (en) * | 1968-09-30 | 1970-06-26 | Marcan Betty | |
US4210274A (en) * | 1978-01-06 | 1980-07-01 | Lionel Leonard | Boxes |
US4251006A (en) * | 1980-01-10 | 1981-02-17 | The Dow Chemical Company | Crate assembly and materials therefor |
FR2574052A1 (en) * | 1984-11-30 | 1986-06-06 | Zagoyan Gerard | Crate for packaging foodstuffs, blank developed for producing it and manufacturing method |
DE9311119U1 (en) * | 1993-05-15 | 1993-09-16 | Hummer Edda | Device for packaging and transporting sensitive objects, in particular fruits and vegetables |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0916584A1 (en) * | 1997-11-14 | 1999-05-19 | Sharp Kabushiki Kaisha | Packaging Tray |
US6296122B1 (en) | 1997-11-14 | 2001-10-02 | Sharp Kabushiki Kaisha | Packaging tray |
WO2005066039A1 (en) * | 2004-01-05 | 2005-07-21 | Joon-Young Ahn | Container for vacuum packing |
Also Published As
Publication number | Publication date |
---|---|
BR9506611A (en) | 1997-09-16 |
HUT73882A (en) | 1996-10-28 |
FR2715373A1 (en) | 1995-07-28 |
EP0737154A1 (en) | 1996-10-16 |
PL315546A1 (en) | 1996-11-12 |
JPH09511473A (en) | 1997-11-18 |
CA2181372A1 (en) | 1995-07-27 |
BG100725A (en) | 1997-03-31 |
FR2715373B1 (en) | 1996-04-05 |
SK92596A3 (en) | 1997-08-06 |
HU9601999D0 (en) | 1996-09-30 |
RO118195B1 (en) | 2003-03-28 |
CZ206696A3 (en) | 1998-03-18 |
AU1580795A (en) | 1995-08-08 |
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