US2402943A - Container - Google Patents
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- Publication number
- US2402943A US2402943A US466424A US46642442A US2402943A US 2402943 A US2402943 A US 2402943A US 466424 A US466424 A US 466424A US 46642442 A US46642442 A US 46642442A US 2402943 A US2402943 A US 2402943A
- Authority
- US
- United States
- Prior art keywords
- container
- sheet
- shell
- die
- collar
- 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.)
- Expired - Lifetime
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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
- B65D3/00—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines
- B65D3/22—Rigid or semi-rigid containers having bodies or peripheral walls of curved or partially-curved cross-section made by winding or bending paper without folding along defined lines with double walls; with walls incorporating air-chambers; with walls made of laminated material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S229/00—Envelopes, wrappers, and paperboard boxes
- Y10S229/941—Box having joint structure for preventing leakage
Definitions
- tainers are subjected, and capable of use for packaging some of aged in tin cans.
- Figures 1 to 7 inclusive are vertical sectional views showing a method of making such containers.
- Figure 8 is a similar view showing a completed container.
- Figure 9 is a similar view showing a modified form of completed container.
- the container may be conveniently described with'reference to one method of making the same, and Figures 1 to 7, illustrating such method willnow be referred to.
- a cylindrical shell I is provided, which said shell may be made of any the products ordinarily packdesired material such as spiral wound paper board of suitable thickness.
- a fiat sheet 2 of suitable material is placed over one of the open ends of the cylindricalshell.
- the sheet 2 forms a lining for the shell, but such lining constitutes the real body of the container, as the shell i serves merely as a forming tool during the making of the container and as a strengthening and protective shell for the finished container.
- the sheet 2 therefore, should be selected from that group of paper or plastic film materials which is known or, can be proven to 1 Claim. (oi. 229-55) 2 provide the desired protection for the product to be packaged.
- sheet or film materials such as Cellophane, Pliofilm, Vinylite, cellulose acetate, and paper coated, im-
- sheet or film materials should be thermoplastic or heat sealing, or should be coated with thermoplastic or heat sealing ma terial.
- a die 3 is brought down from above, which said. die has a lower cylindrical wall t fitting rather closely to the interior wall of the shell 8.
- the downward movement of the die inserts the sheet 2 into the shell to form a cup shaped body having a smooth fiatbottom '6 and pleated cylindrical side walls l.
- the upper portion of the die 3 is provided with an annular groove 8 which fits snugly over the upper edge of the shell, thus reversely folding the upper section or marginal portion of the pleated side walls over the upper edge of the shell to form a downwardly extending collar 9.
- the die is provided with an electrical I heating element It along the wall of the annular groove, so that if thermoplastic or heat sealing materials are used as previously described, the overlapping folds of the pleats may be sealed so as to hold the cup shaped body in shape after removal of the die. It will be noted, however, that the sheet 2 is of sufficient size sothata loose skirt H of pleated materia1 extends below the sealed portion of the collar 9 for purposes hereinafter described.
- the container After removal of the die 3, the container, as shown in Figure 3, is ready for filling. Preferably, however, it is only filled to a level somewhat below the upper edge as indicated by the dotted line H.
- the next step is to place a sheet I5 of suitable material over the cup shaped body as shownin Figure 4, saidsheet being preferably a material of the same natureas the material from which the body is formed and adapted 'to serve as a closure therefor.
- a die I6 is brought down from body. The downward movement of the die depresses the central portion of sheet l5 approximately to the filling level of the container, and
- the upper portion of the die I6 is also provided with reversely folding the marginal portion of the sheet l over the edge of the cup shaped body to form a downwardly extending collar 20.
- the die I6 is provided with an electrical heating element 2
- sealing extends along the contiguous portions of the collars 9 and 20 and over the edge of the shell and along at least a por tion of the contiguous sections on the interior of the cup shaped body.
- Such sealing may extend over the entire area of such contiguous sections, v but by sealing only the upper portion thereof, as
- the sheet i5 is of sufllcient size so that a loose skirt 22 extends below the sealed portion of the collar 20.
- the container is now tightly sealed and if desired, after removal of the die. "5, the skirts I l and 22 may be trimmed off to provide a finished container which is adequate for many purposes.
- thermoplastic or heat sealing material seals the plies'and folds of the collar 26 to each other and seals the collar 26 to the collar 20.
- a cylindrical plug 28 may be inserted in the depression in the closure to cooperate with the ring 25 during the sealing operation. It will be understood that while the collar 26 is shown outside the collar 20, by a slight change in the shape of the ring 25 the loose skirts II and 22 might be tucked inside the collar 28 and sealed in the same manner.
- FIG 8 One form of the completed container is'illustrated in Figure 8, wherein for strengthening and protective purposes the top and bottom of the shell are provided with paper board covers 30 and 3
- the top cover may be provided with apaper board plug 32 which projects into the end of the shell, as'shown, The outer periphery of such a plug engages and holds the closure material against the internal wall of the shell and prevents breaking of the seal even when subjected to considerable internal pressure.
- the lower surface of the plug is spaced from the 'flat portion of the sheet l5, so as to retain the advantage of the expansion chamber.
- the container may be used without such covers.
- the shell I is not required in the finished container and may be withdrawn after the forming operations 4 are completed. thus leaving merely the liner and closure which in themselves form a complete sealed container.
- a modified form of container is illustrated in 6 Figure 9.
- the interior lining is dispensed with and the cylindrical shell I forms the side walls of the container.
- the cylindrical shell I forms the side walls of the container.
- closure sheet I5 is applied directly to the upper edge of the shell following the steps illustrated in Figures 4 and 5. In this form, however, it is less important to perform the steps illustrated in Figures 6 and 7, and any depending skirt of loose material below the sealed collar 20 may be trimmed off as previously described.
- a similar closure sheet l5 may be applied directly to the lower edge of theshell in precisely the same manner. While it is only necessary to make provision for expansion at one end of the container, it is advantageous to use this type ,of closure at both ends because of the additional protection provided against leakage, particularly when the package is subjected to crushing stresses.
- of paperboard may also be provided for the top and bottom, respectively, and such covers may be provided with paper board plugs 32' which project into the ends of the shell, as. before. i
- a container comprising a seamless cup shaped body formed from a flat sheet of material and having a substantially flat bottom portion and pleated side walls, the upper section of said open upper end of said cup shaped body below 59 the upper edge thereof, and having a portion'exi tending upwardly therefrom contiguous to said pleated side walls, said second ,sheet consisting of thin material having a high'degree of flexibility and having heat sealing properties, the upper part of said contiguous portions being heat sealed together, and leaving the lower part of said contiguous portions unsealed, said second sheet being reversely folded over the upper edge of said cup shaped body and extending downwardly therefrom substantially parallel to said reversely folded portions of said side walls, said parallel portions being heat sealed together, the flexibility' of said second sheet being such that the transversely extending portions of said second sheet and the unsealed portions thereof extending upwardly therefrom present no appreciable resistance to deformation when the upper rim of said cup-shaped body is subjected to deformation, and no appreciable resistance to deformation on expansion of the
Description
July 2, 1946. B. BOGOSLOWSKY CONTAINER Filed NOV. 21, 1942 2 Sheets-Sheet 1 INVENTOR 2 B 5 z/ *5;
ATTORNEYS July 2, 1946. B. BOGOSLOWSKY CONTAINER Filed Nov. 21, 1942 2 Sheets-Sheet 2 2 ll] I V l v a/ 1, T 1.. a m g I1 D [\l a 5 fla lllllllll L/J llllll mi I INVENTOR Patented July 2, 1946 I STATES CONTAINER Boris Bogoslowsky, Jackson Heights, N. Y. 7 Application November 21, 1942, Serial No. 466,424
tainers are subjected, and capable of use for packaging some of aged in tin cans.
Other objects and advantages of the invention will appear hereinafter,
A preferred embodiment of the invention selected for purposes of illustration is shown in the accompanying drawings, in which,
Figures 1 to 7 inclusive are vertical sectional views showing a method of making such containers.
Figure 8 is a similar view showing a completed container. l
Figure 9 is a similar view showing a modified form of completed container.
In the above figures of the drawings, because of the impracticability of showing thickness of sheets of paper or plastic films of the 'order of .0015" to .003",-such sheets are illustrated by single lines, but in order to avoid confusion at points where such sheets abut or lie contiguously, such lines are spaced apart in order that the configuration of the sheets may be followed. In a sense, therefore, the above figures are diagrammatic, in that a space between two adjacent lines representing such sheets must be understood to be for purposes of clarity in' illustration only.
The container may be conveniently described with'reference to one method of making the same, and Figures 1 to 7, illustrating such method willnow be referred to.
-''Referring to Figure 1, a cylindrical shell I is provided, which said shell may be made of any the products ordinarily packdesired material such as spiral wound paper board of suitable thickness. As the first step inmaking the container a fiat sheet 2 of suitable material is placed over one of the open ends of the cylindricalshell. As will appearhereinafter, the sheet 2 forms a lining for the shell, but such lining constitutes the real body of the container, as the shell i serves merely as a forming tool during the making of the container and as a strengthening and protective shell for the finished container. The sheet 2, therefore, should be selected from that group of paper or plastic film materials which is known or, can be proven to 1 Claim. (oi. 229-55) 2 provide the desired protection for the product to be packaged. Among the group of materials from which selection may be made are sheet or film materials such as Cellophane, Pliofilm, Vinylite, cellulose acetate, and paper coated, im-
pregnated or otherwise treated to impart water or oil resistant qualities. Preferably, for reasons which will appear, such sheet or film materials should be thermoplastic or heat sealing, or should be coated with thermoplastic or heat sealing ma terial. a
After arranging the sheet 2 as shown in Figure l, a die 3 is brought down from above, which said. die has a lower cylindrical wall t fitting rather closely to the interior wall of the shell 8. The downward movement of the die inserts the sheet 2 into the shell to form a cup shaped body having a smooth fiatbottom '6 and pleated cylindrical side walls l. The upper portion of the die 3 is provided with an annular groove 8 which fits snugly over the upper edge of the shell, thus reversely folding the upper section or marginal portion of the pleated side walls over the upper edge of the shell to form a downwardly extending collar 9.
Preferably the die is provided with an electrical I heating element It along the wall of the annular groove, so that if thermoplastic or heat sealing materials are used as previously described, the overlapping folds of the pleats may be sealed so as to hold the cup shaped body in shape after removal of the die. It will be noted, however, that the sheet 2 is of sufficient size sothata loose skirt H of pleated materia1 extends below the sealed portion of the collar 9 for purposes hereinafter described.
After removal of the die 3, the container, as shown in Figure 3, is ready for filling. Preferably, however, it is only filled to a level somewhat below the upper edge as indicated by the dotted line H.
After filling, the next step is to place a sheet I5 of suitable material over the cup shaped body as shownin Figure 4, saidsheet being preferably a material of the same natureas the material from which the body is formed and adapted 'to serve as a closure therefor. After thus arranging the sheet 5, a die I6 is brought down from body. The downward movement of the die depresses the central portion of sheet l5 approximately to the filling level of the container, and
forms pleated side wallsl8 lying contiguous to the interior walls of the cu shaped body.- The upper portion of the die I6 is also provided with reversely folding the marginal portion of the sheet l over the edge of the cup shaped body to form a downwardly extending collar 20.
Preferably the die I6 is provided with an electrical heating element 2| along the wall of the annular groove, so that the margin of the closure sheet [5 may be sealed to the cup shaped body. Preferably such sealing extends along the contiguous portions of the collars 9 and 20 and over the edge of the shell and along at least a por tion of the contiguous sections on the interior of the cup shaped body. Such sealing may extend over the entire area of such contiguous sections, v but by sealing only the upper portion thereof, as
for example one-fourth to one-half of the distance from the upper edge, provision is made for expansion of the contents of the container in the cases wheresuch expansion is likely to occur. Again it may be noted that the sheet i5 is of sufllcient size so that a loose skirt 22 extends below the sealed portion of the collar 20.
The container is now tightly sealed and if desired, after removal of the die. "5, the skirts I l and 22 may be trimmed off to provide a finished container which is adequate for many purposes.
However, I prefer to furtherimprove the seal and strengthen the container as follows. Referring to Figure 6, a ring 25 is placed around the container and is moved upwardly to the position I shown in Figure 7, thereby engaging the skirts vided with an electrical heating element 28, which,
in the case of thermoplastic or heat sealing material, seals the plies'and folds of the collar 26 to each other and seals the collar 26 to the collar 20.
If desired, a cylindrical plug 28 may be inserted in the depression in the closure to cooperate with the ring 25 during the sealing operation. It will be understood that while the collar 26 is shown outside the collar 20, by a slight change in the shape of the ring 25 the loose skirts II and 22 might be tucked inside the collar 28 and sealed in the same manner.
In the foregoing description, it will be understood that while heat sealing materials are preferred because of their convenience, suitable adhesives may be used if desired, within the scope of the invention.
One form of the completed container is'illustrated in Figure 8, wherein for strengthening and protective purposes the top and bottom of the shell are provided with paper board covers 30 and 3|. If desired, the top cover may be provided with apaper board plug 32 which projects into the end of the shell, as'shown, The outer periphery of such a plug engages and holds the closure material against the internal wall of the shell and prevents breaking of the seal even when subjected to considerable internal pressure. It will be noted, however, that the lower surface of the plug is spaced from the 'flat portion of the sheet l5, so as to retain the advantage of the expansion chamber. It will be understood, however. that for many purposes the container may be used without such covers. It will also be understood that for certain purposes, and particularly for containers of the smaller sizes, the shell I is not required in the finished container and may be withdrawn after the forming operations 4 are completed. thus leaving merely the liner and closure which in themselves form a complete sealed container.
A modified form of container is illustrated in 6 Figure 9. In this form, the interior lining is dispensed with and the cylindrical shell I forms the side walls of the container. By treating paper board from which such shells may be formed with wax or asphaltu-m in accordance with known processes such material may be rendered moisture or oil resistant to an extent sufficient for many purposes.
In making this modified form of container the closure sheet I5 is applied directly to the upper edge of the shell following the steps illustrated in Figures 4 and 5. In this form, however, it is less important to perform the steps illustrated in Figures 6 and 7, and any depending skirt of loose material below the sealed collar 20 may be trimmed off as previously described. v
A similar closure sheet l5 may be applied directly to the lower edge of theshell in precisely the same manner. While it is only necessary to make provision for expansion at one end of the container, it is advantageous to use this type ,of closure at both ends because of the additional protection provided against leakage, particularly when the package is subjected to crushing stresses. Y
It will be understood that the invention may be variously modified and embodied withinthe scope of the subjoined claim.
I claim as my invention:
I A container comprising a seamless cup shaped body formed from a flat sheet of material and having a substantially flat bottom portion and pleated side walls, the upper section of said open upper end of said cup shaped body below 59 the upper edge thereof, and having a portion'exi tending upwardly therefrom contiguous to said pleated side walls, said second ,sheet consisting of thin material having a high'degree of flexibility and having heat sealing properties, the upper part of said contiguous portions being heat sealed together, and leaving the lower part of said contiguous portions unsealed, said second sheet being reversely folded over the upper edge of said cup shaped body and extending downwardly therefrom substantially parallel to said reversely folded portions of said side walls, said parallel portions being heat sealed together, the flexibility' of said second sheet being such that the transversely extending portions of said second sheet and the unsealed portions thereof extending upwardly therefrom present no appreciable resistance to deformation when the upper rim of said cup-shaped body is subjected to deformation, and no appreciable resistance to deformation on expansion of the contents of the container, whereby stresses tending to tear said second sheet are avoided when said sheet is deformed for either reason.
BORIS BOGOSLOWSKY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US466424A US2402943A (en) | 1942-11-21 | 1942-11-21 | Container |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US466424A US2402943A (en) | 1942-11-21 | 1942-11-21 | Container |
Publications (1)
Publication Number | Publication Date |
---|---|
US2402943A true US2402943A (en) | 1946-07-02 |
Family
ID=23851698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US466424A Expired - Lifetime US2402943A (en) | 1942-11-21 | 1942-11-21 | Container |
Country Status (1)
Country | Link |
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US (1) | US2402943A (en) |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2631939A (en) * | 1952-05-02 | 1953-03-17 | Peters Leo | Packaging of soft plastic foods |
US2645591A (en) * | 1950-10-25 | 1953-07-14 | Sydney Thomas Corp | Method of bonding an end closure to a thermoplastic bag |
US2697057A (en) * | 1948-12-23 | 1954-12-14 | Ortho Pharma Corp | Method of making a diaphragm |
US2698248A (en) * | 1951-09-21 | 1954-12-28 | Peters Leo | Separable mold package for soft plastic foods |
US2798654A (en) * | 1954-03-10 | 1957-07-09 | Continental Can Co | Protective sleeve for chime of fiber drum |
US2822970A (en) * | 1955-08-24 | 1958-02-11 | Shoup Owens Inc | Container |
US2831527A (en) * | 1952-04-24 | 1958-04-22 | Sanitary Products Corp | Method of applying a film tip to a tampon |
US3043489A (en) * | 1959-12-09 | 1962-07-10 | Anderson Kay Bruce | Package for liquids and other materials |
US3085375A (en) * | 1960-12-30 | 1963-04-16 | Grace W R & Co | Nestable container wrapping |
DE1163130B (en) * | 1961-11-21 | 1964-02-13 | Jagenberg Werke Ag | Method for producing a container from paper, cardboard or the like. |
DE1188791B (en) * | 1959-10-16 | 1965-03-11 | Bahlsen Werner | Process for deforming thermoplastic plastic films |
US3206907A (en) * | 1961-01-30 | 1965-09-21 | American Can Co | Method of lining the interior of a container |
DE1207608B (en) * | 1960-04-06 | 1965-12-23 | Bahlsen Werner | Process for the pneumatic deformation of thermoplastic plastic films |
US3301464A (en) * | 1964-03-03 | 1967-01-31 | Lily Tulip Cup Corp | Container and lid |
US3367807A (en) * | 1963-05-13 | 1968-02-06 | Monsanto Chemicals | Method of attaching cover panel to a food container |
US3370773A (en) * | 1966-01-06 | 1968-02-27 | Owens Illinois Inc | Composite container |
US3383256A (en) * | 1964-09-14 | 1968-05-14 | Dow Chemical Co | Process and apparatus for capping plastic containers |
US3423004A (en) * | 1966-05-05 | 1969-01-21 | Od W Christensson | Package with hinged lid |
US3449183A (en) * | 1966-08-11 | 1969-06-10 | Koehler Dayton | Thermoplastic sealing apparatus and method |
US4016807A (en) * | 1975-04-23 | 1977-04-12 | Max Sandherr Ag | Box and method of covering a box edge |
US4217156A (en) * | 1977-02-18 | 1980-08-12 | Elopak A/S | Method for sealing a plastics lid to a container of plastics-coated paper board and apparatus for carrying out the method |
US4293353A (en) * | 1978-11-03 | 1981-10-06 | The Continental Group, Inc. | Sealing-attaching system for bag type aerosol containers |
US4640733A (en) * | 1983-05-19 | 1987-02-03 | Bogren Ingemar S B | Apparatus for forming and inserting an internal lid in a container |
US20090258115A1 (en) * | 2006-07-05 | 2009-10-15 | Nestec S.A. | Packaged food product |
US9850021B2 (en) | 2011-03-25 | 2017-12-26 | Sonoco Development, Inc. | Paper-based composite container for off-gassing products, and method for making same |
-
1942
- 1942-11-21 US US466424A patent/US2402943A/en not_active Expired - Lifetime
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2697057A (en) * | 1948-12-23 | 1954-12-14 | Ortho Pharma Corp | Method of making a diaphragm |
US2645591A (en) * | 1950-10-25 | 1953-07-14 | Sydney Thomas Corp | Method of bonding an end closure to a thermoplastic bag |
US2698248A (en) * | 1951-09-21 | 1954-12-28 | Peters Leo | Separable mold package for soft plastic foods |
US2831527A (en) * | 1952-04-24 | 1958-04-22 | Sanitary Products Corp | Method of applying a film tip to a tampon |
US2631939A (en) * | 1952-05-02 | 1953-03-17 | Peters Leo | Packaging of soft plastic foods |
US2798654A (en) * | 1954-03-10 | 1957-07-09 | Continental Can Co | Protective sleeve for chime of fiber drum |
US2822970A (en) * | 1955-08-24 | 1958-02-11 | Shoup Owens Inc | Container |
DE1188791B (en) * | 1959-10-16 | 1965-03-11 | Bahlsen Werner | Process for deforming thermoplastic plastic films |
US3043489A (en) * | 1959-12-09 | 1962-07-10 | Anderson Kay Bruce | Package for liquids and other materials |
DE1207608B (en) * | 1960-04-06 | 1965-12-23 | Bahlsen Werner | Process for the pneumatic deformation of thermoplastic plastic films |
US3085375A (en) * | 1960-12-30 | 1963-04-16 | Grace W R & Co | Nestable container wrapping |
US3206907A (en) * | 1961-01-30 | 1965-09-21 | American Can Co | Method of lining the interior of a container |
DE1163130B (en) * | 1961-11-21 | 1964-02-13 | Jagenberg Werke Ag | Method for producing a container from paper, cardboard or the like. |
US3367807A (en) * | 1963-05-13 | 1968-02-06 | Monsanto Chemicals | Method of attaching cover panel to a food container |
US3301464A (en) * | 1964-03-03 | 1967-01-31 | Lily Tulip Cup Corp | Container and lid |
US3383256A (en) * | 1964-09-14 | 1968-05-14 | Dow Chemical Co | Process and apparatus for capping plastic containers |
US3370773A (en) * | 1966-01-06 | 1968-02-27 | Owens Illinois Inc | Composite container |
US3423004A (en) * | 1966-05-05 | 1969-01-21 | Od W Christensson | Package with hinged lid |
US3449183A (en) * | 1966-08-11 | 1969-06-10 | Koehler Dayton | Thermoplastic sealing apparatus and method |
US4016807A (en) * | 1975-04-23 | 1977-04-12 | Max Sandherr Ag | Box and method of covering a box edge |
US4217156A (en) * | 1977-02-18 | 1980-08-12 | Elopak A/S | Method for sealing a plastics lid to a container of plastics-coated paper board and apparatus for carrying out the method |
US4293353A (en) * | 1978-11-03 | 1981-10-06 | The Continental Group, Inc. | Sealing-attaching system for bag type aerosol containers |
US4640733A (en) * | 1983-05-19 | 1987-02-03 | Bogren Ingemar S B | Apparatus for forming and inserting an internal lid in a container |
US20090258115A1 (en) * | 2006-07-05 | 2009-10-15 | Nestec S.A. | Packaged food product |
US9850021B2 (en) | 2011-03-25 | 2017-12-26 | Sonoco Development, Inc. | Paper-based composite container for off-gassing products, and method for making same |
US9944426B2 (en) | 2011-03-25 | 2018-04-17 | Sonoco Development, Inc. | Paper-based composite container for off-gassing products, and method for making same |
US10329044B2 (en) | 2011-03-25 | 2019-06-25 | Sonoco Developement, Inc. | Paper-based composite container for off-gassing products, and method for making same |
US11072452B2 (en) | 2011-03-25 | 2021-07-27 | Sonoco Development, Inc. | Paper-based composite container for off-gassing products, and method for making same |
US11760528B2 (en) | 2011-03-25 | 2023-09-19 | Sonoco Development, Inc. | Paper-based composite container for off-gassing products, and method for making same |
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