US3667667A - Double boiler and throw-a-way food package - Google Patents

Double boiler and throw-a-way food package Download PDF

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Publication number
US3667667A
US3667667A US98305A US3667667DA US3667667A US 3667667 A US3667667 A US 3667667A US 98305 A US98305 A US 98305A US 3667667D A US3667667D A US 3667667DA US 3667667 A US3667667 A US 3667667A
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US
United States
Prior art keywords
cover
peripheral edge
container
starting end
improvement
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
Application number
US98305A
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English (en)
Inventor
Henry E Frankenberg
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.)
Continental Can Co Inc
Original Assignee
Continental Can Co Inc
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 Continental Can Co Inc filed Critical Continental Can Co Inc
Application granted granted Critical
Publication of US3667667A publication Critical patent/US3667667A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65D81/34—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3438—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 for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by steaming
    • 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
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/10—Container closures formed after filling
    • B65D77/20—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers
    • B65D77/2004—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being maintained on the container by mechanical means, e.g. crimping, clamping, riveting
    • B65D77/2008—Container closures formed after filling by applying separate lids or covers, i.e. flexible membrane or foil-like covers the cover being maintained on the container by mechanical means, e.g. crimping, clamping, riveting the container flange being crimped over the cover
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2041—Pull tabs
    • B65D2577/205—Pull tabs integral with the closure
    • 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
    • B65D2577/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks, bags
    • B65D2577/10—Container closures formed after filling
    • B65D2577/20—Container closures formed after filling by applying separate lids or covers
    • B65D2577/2075—Lines of weakness or apertures
    • B65D2577/2091—Lines of weakness or apertures in cover
    • 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
    • Y10S229/902—Box for prepared or processed food
    • Y10S229/903—Ovenable, i.e. disclosed to be placed in an oven

Definitions

  • an edge of the periphery thereof is inwardly offset and in this area the cover is not crimped to the container but is actually spaced slightly from the crimp which serves as a vent for steam when the container contents are heated.
  • the starting end of a tear strip portion there is located the starting end of a tear strip portion, and since the latter is not secured to the container by the crimp, the starting end can be easily gripped and the tear strip portion readily removed to gain access to the container contents.
  • Another similar package employs the double boiler principle, and in addition to the usual edible product container and cover, also includes an exterior compartment which houses water or a similar heat transfer medium. Upon the heating thereof, steam is emanated and by suitable vent openings or apertures circulates into and through the food compartment thus heating the contents by convection currents, as well as conduction.
  • the cover is provided with a pair of score lines defining a tear strip having a gripping end which projects beyond a peripheral edge of the cover, but is folded back upon a remaining portion of the tear strip along a fold line which is inboard of and slightly spaced from the conventional crimped peripheral edge of the container.
  • the cover at the starting end of the tear strip is not crimpingly secured to the container or at most only a very narrow edge portion of the tear strip is loosely crimped to the container periphery. In this manner, the gripping end can be grasped and the tear strip readily removed to permit access to the container interior.
  • the same construction heretofore described serves as a. vent since the minor portion of the cover which is not crimped to the container body serves as a vent to permit steam to pass to atmosphere from the interior of the container between the cover and the peripheral crimp of the container body.
  • FIG. 1 is a top plan view of a novel cover constructed in accordance with this invention, and illustrates two diametrically opposite comers from which project beyond an adjacent side edge gripping ends of a tear strip with each corner being defined by an are which forms an offset in one of the peripheral edges at each comer.
  • FIG. 2 is a top perspective view illustrating a container and cover combination, with the cover of FIG. 1 being illustrated in its in-use position.
  • FIG. 3 is an enlarged cross-sectional view taken generally along line 33 of FIG. 1, and illustrates pairs of offset score lines defining one of the two identical tear strips.
  • FIG. 4 is a fragmentary sectional view similar to FIG. 3, and illustrates the manner in which severance occurs during the removal of the tear strips.
  • FIG. 5 is an enlarged fragmentary top plan view of the uppermost right-hand side of the container and cover illustrated in FIG. 2, and illustrates the manner in which the gripping of the tear strip is overfolded to provide a gap between a periphery of the cover and a peripheral crimp of the container.
  • FIG. 6 is an enlarged fragmentary sectional view taken generally along line 66 of FIG. 5, and illustrates the manner in which one of a pair of handles is folded and secured to the container body by the peripheral crimp thereof.
  • FIG. 7 is an enlarged fragmentary sectional view taken generally along line 7-7 of FIG. 5, and illustrates the manner in which steam and/or vapor is admitted into the product-containing chamber incident to circulating therethrough prior to being vented to atmosphere.
  • FIG. 8 is an enlarged fragmentary sectional view taken generally along line 8-8 of FIG. 5, and illustrates the manner in which the steam and/or vapor is vented to atmosphere through the relieved area between the cover periphery and the peripheral crimp of the container body.
  • FIG. 2 of the drawings A novel container and closure combination constructed in accordance with this invention is illustrated in FIG. 2 of the drawings, and is generally designated by the reference numeral 10.
  • the container and cover combination 10 includes a container 11 and a cover 12, the latter of which is illustrated in its blank form in FIG. 1.
  • the cover 12 (FIG. 1) is of a generally polygonal configuration and is formed of paper stock or similar relatively inexpensive material. In lieu of paper stock material, the cover 12 may be constructed from aluminum foil, plastic, or laminates thereof.
  • the cover 12 includes a generally polygonally shaped peripheral edge designated by the reference numeral 13 and being defined by a generally inverted U-shaped handle-forming edge portion 14, a side edge portion 15, an arcuate corner edge portion 16, another side edge portion 17, an outwardly opening generally U-shaped notch 18, a generally inverted C shaped tear strip gripping end edge portion 20, an arcuate comer edge portion 21, another side edge portion 22, a generally U-shaped handle-forming edge portion 23, another side edge portion 24, a generally arcuate corner edge portion 25, another side edge portion 26, another generally U-shaped outwardly opening notch 27, a generally C-shaped tear strip gripping end edge portion 28, another arcuate corner edge portion 30, and a side edge portion 31.
  • the cover 12 is diametrically symmetrical which is to say that all diametrically opposite portions of the cover are identical.
  • the comer edge portions 25, 26 have like radii with the respective loci 32, 33 thereof being spaced identical normal distances from the side edge portions 15, 17 and 24, 26, respectively.
  • the comer edge portions 21, 30 are of like curvature with the respective loci 34, 35 thereof being spaced identical distances D1 from the respective edges 22, 31, and D2 from the respective edge portions 17, 26.
  • the distance D1 is less than the distance D2 resulting in the formation of an offset 36, 37 at the lower right-hand and upper lefthand portions of the blank 12 as viewed in FIG. 1.
  • the depth of the offsets 36, 37 in an actual embodiment of the invention is 0.07 inch
  • the radius of the corner edge portions 16, 25 is 1.20 inch as is each of the distances D2, while each of the distances D1 is 1.04 inch.
  • Elongated slots 40, 41 define respective handles 42, 43 with the edge portions 14, 23.
  • the handles 42, 43 are adapted to be folded inwardly along respective fold lines 44, 45, in the manner best illustrated in FIGS. 2, 5 and 6.
  • Each tear strip portion 46, 47 includes respective fold lines 54, 55 which with the respective edge portions 20, 28 define or set off a starting end 59 of the tear strips 46, 47 which is manually grasped and pulled to remove the tear strips in a manner which will be described more fully hereafter.
  • the fold lines 54, 55 are parallel to the edge portions 17, 26 and are spaced the distance D1 from the respective loci 34, 35, thus smoothly merging the fold lines 54, 55, with the comer defining edge portions 21, 30, respectively.
  • FIGS. 2 and through 8 of the drawings illustrate the formation of the container 1 l as including a generally polygonally shaped outer container body 60 having a radially outwardly directed peripheral flange 61 which is overfolded, curled or crimped to form a peripheral bead or crimp which is generally designated by the reference numeral 62.
  • the container 1 1 also includes an inner container body 63 likewise having a radially outwardly directed peripheral flange 64 which is partially overfolded at an edge portion 65 thereof. Water (not shown) or similar media is disposed in a compartment 66 between the outer container body 60 and the inner container body 63, while an edible product is positioned in a compartment 67 of the inner container body 63.
  • a vent opening or aperture 68 (FIGS. 5 and 7) is formed in a recess 69 the peripheral flange 64 of the inner container body 63 inboard of the comet defining edge portion 16, as well as another like aperture (not shown) inboard of the diametrically opposite edge 25.
  • the two vent openings permit steam or vapor to pass therethrough and between the peripheral flange 64 and the cover 12 into the compartment 67 to heat the contents thereof.
  • the cover 12 Prior to forming the overfolds 65, 62, the cover 12 is positioned atop the flange 64 after the handles 42, 43 and the starting ends 59 have been folded inwardly about the respective fold lines 44, 45 and 54, 55, in the manner best illustrated in FIGS. 2 and 5. Thereafter conventional means are employed to form the peripheral curl 62, and in this regard reference is now made specifically to FIGS. 5 through 8 of the drawings.
  • the cross section of the curl 62 beginning at the notch 27 and moving clockwise in FIG. 5 is shown in FIG. 8, and is generally designated by the reference numeral 70.
  • the curl portion 70 between points A and B is formed as a very loose curl with a gap existing between an under surface 71 of the curl portion 70 and the underlying portion (unnumbered) of the corner edge portion 30 of the cover 12.
  • the fold line 55 is inboard of the curl portion 70, as is best illustrated in FIG. 5, a relief area or gap 72 is formed therebetween.
  • the score lines 50 through 53 lie between points A and B.
  • the minor portion (unnumbered) of the edge 30 underlying the curl portion 70 adjacent the fold lines 51, 53 can be readily removed with the result that the tear strip can be drawn to the right resulting in the severance of the score lines, in the manner illustrated in FIG. 4, and the eventual removal of the tear strip 46.
  • the configuration of the curl 62 is as is indicated in FIG. 7 in which a curl portion 73 thereof is formed more tightly than the curl portion 70 and an edge 74 clamps the periphery of the cover 12 to preclude the removal thereof from beneath the curl portions 73. Due to this tight clamping, the gases venting through the aperture 68 (FIG. 7) cannot escape to the right, as viewed in FIG. 7, and must necessarily follow the path of least resistance into the compartment 67 to warm the contents thereof.
  • a portion 75 of the curl 62 between points C and D likewise constitutes a tight curl with an end 76 (FIG. 6) thereof bearing against the handle 42 inboard of the fold line 44. Due to the tightness of the curl portion 75, the cover will not be inadvertently or accidentally removed upon lifting of the combination 10 by the handles 42, 43 upon the upward and outward folding thereof to a position normal to the cover 12.
  • the combined container and closure 10 of FIG. 2 is heated in any conventional manner and when the product in the compartment 67 has been sufiiciently warmed, the combination 10 may be served prior to or after removing the tear strips 46, 47 in the manner heretofore described.
  • the handles 42, 43 are used to serve the combination 10 to the eventual user who himself removes the tear strips 46, 47, after which the portion of the cover lying therebetween can be readily withdrawn from beneath the curl 62 adjacent the edges 17, 26.
  • the score lines 50, 52 of each tear strip 46, 47 may be eliminated and instead an inner and outer score line in general overlying relationship may be provided in the cover 12 between the notches 18, 27. In this manner two generally triangular portions of the cover would be removed upon the removal of the tear strip portions 46, 47, while at the same time the entire interior of the inner container or compartment 67 would be exposed.
  • a cover of the easy opening type adapted to be secured to a container by an overfolded periphery thereof, said cover including a removable tear strip portion having a starting end projecting beyond a peripheral edge of said cover, the improvement comprising a first portion of said peripheral edge at one side of said starting end being inwardly offset relative to a second portion of said peripheral edge at a second side of said starting end opposite said one side whereby upon inward overfolding of said starting end and the securement thereof to a container the tear strip portion is readily removed away from the overfolded container periphery.
  • venting means being an edge portion of the cover periphery which is inwardly offset relative to at least one of said side edges.
  • a container and cover combination comprising a container body having an overfolded peripheral edge imparting a predetermined configuration to said body, said cover including a peripheral edge of a configuration substantially similar to said predetermined configuration, a major portion of said cover peripheral edge lying beneath a major portion of said overfolded peripheral edge and being thereby secured to said container body, and a minor portion of said cover peripheral edge being inwardly offset from a minor portion of said overfolded peripheral edge thereby forming a relieved area between said minor cover peripheral edge portion and said minor cover peripheral edge portion thereby adapting said container and cover combination for particular use as an easy opening and/or ventilable assembly.
  • venting means edge portion merges with a first of said side edges along an are having a locus spaced a closer normal distance to said first side edge than to the second of said side edges.
  • said cover includes a removable tear strip portion having a starting end joined to a remaining portion along a fold line, said starting end is folded about said fold line into overlying relationship to said remaining portion, and said minor cover peripheral edge portion is in part defined by said fold line.
  • cover peripheral edge is further defined by a pair of adjacent angularly disposed side edge portions, and said minor cover peripheral edge portion is positioned between said pair of side edge portions.
  • said cover includes a removable tear strip portion having a starting end joined to a remaining portion along a fold line, said starting end is folded about said fold line into overlying relationship to said remaining portion, and said minor cover peripheral edge portion is in part defined by said fold line.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Cookers (AREA)
  • Packages (AREA)
US98305A 1970-12-15 1970-12-15 Double boiler and throw-a-way food package Expired - Lifetime US3667667A (en)

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US9830570A 1970-12-15 1970-12-15

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JP (1) JPS5113071B1 (online.php)
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717478A (en) * 1967-09-22 1973-02-20 Gen Foods Corp Disposable cook-in package for frozen food products
EP1361173A1 (fr) * 2002-01-16 2003-11-12 Societe Alsacienne d'Aluminium Opercule destiné à fermer un récipient et à être enlevé partiellement pour permettre l'accès au produit conditionné dans le récipient
US6666332B1 (en) * 2002-01-11 2003-12-23 Lil′Drug Store Products, Inc. Variable display position expanded printing surface package
US20050136157A1 (en) * 2003-12-22 2005-06-23 Masayo Ebihara Wheaten food with powdery soup in a cupped container and method of eating the same
WO2005054071A3 (de) * 2003-12-08 2005-08-04 Peter Klotz E K Verschlussvorrichtung
US20060071057A1 (en) * 2004-09-30 2006-04-06 Kimberly-Clark Worldwide, Inc. Frangible seal for packaging
EP1650138A1 (en) * 2004-10-25 2006-04-26 Impress Group B.V. Container comprising a closing sheet that is directly connected to the wall
US20090238934A1 (en) * 2004-04-07 2009-09-24 Rodney Lingham Process for treating edible plant structures and product thereof
EP3747797A1 (fr) 2019-06-06 2020-12-09 Groupe Guillin Dispositif de fermeture d'un pot destiné à contenir au moins un produit, dispositif de conditionnement comportant un tel dispositif de fermeture et procédés de fabrication d'un tel dispositif de fermeture et d'un tel dispositif de conditionnement
WO2021028608A1 (es) * 2019-08-09 2021-02-18 Coolpeppers, S.L.U. Dispositivo para la preparación y distribución de comidas preparadas

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850391A (en) * 1955-06-27 1958-09-02 George G Gunsberg Packaged frozen food article
US3069043A (en) * 1959-09-23 1962-12-18 Aluminum Co Of America Food package
US3298505A (en) * 1965-02-12 1967-01-17 Brown Co Laminated closure for food trays and trays closed with same
US3394869A (en) * 1966-11-01 1968-07-30 Nat Dairy Prod Corp Packaging top
US3464832A (en) * 1965-11-22 1969-09-02 Charles D Mullinix Food packaging
US3498448A (en) * 1968-07-03 1970-03-03 Johnson & Johnson Surgical package
US3516597A (en) * 1968-01-04 1970-06-23 Kaiser Aluminium Chem Corp Foil container

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850391A (en) * 1955-06-27 1958-09-02 George G Gunsberg Packaged frozen food article
US3069043A (en) * 1959-09-23 1962-12-18 Aluminum Co Of America Food package
US3298505A (en) * 1965-02-12 1967-01-17 Brown Co Laminated closure for food trays and trays closed with same
US3464832A (en) * 1965-11-22 1969-09-02 Charles D Mullinix Food packaging
US3394869A (en) * 1966-11-01 1968-07-30 Nat Dairy Prod Corp Packaging top
US3516597A (en) * 1968-01-04 1970-06-23 Kaiser Aluminium Chem Corp Foil container
US3498448A (en) * 1968-07-03 1970-03-03 Johnson & Johnson Surgical package

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717478A (en) * 1967-09-22 1973-02-20 Gen Foods Corp Disposable cook-in package for frozen food products
US6666332B1 (en) * 2002-01-11 2003-12-23 Lil′Drug Store Products, Inc. Variable display position expanded printing surface package
EP1361173A1 (fr) * 2002-01-16 2003-11-12 Societe Alsacienne d'Aluminium Opercule destiné à fermer un récipient et à être enlevé partiellement pour permettre l'accès au produit conditionné dans le récipient
WO2005054071A3 (de) * 2003-12-08 2005-08-04 Peter Klotz E K Verschlussvorrichtung
US20050136157A1 (en) * 2003-12-22 2005-06-23 Masayo Ebihara Wheaten food with powdery soup in a cupped container and method of eating the same
US20090238934A1 (en) * 2004-04-07 2009-09-24 Rodney Lingham Process for treating edible plant structures and product thereof
US20060071057A1 (en) * 2004-09-30 2006-04-06 Kimberly-Clark Worldwide, Inc. Frangible seal for packaging
WO2006043969A1 (en) * 2004-09-30 2006-04-27 Kimberly-Clark Worldwide, Inc. Frangible seal for packaging
EP1650138A1 (en) * 2004-10-25 2006-04-26 Impress Group B.V. Container comprising a closing sheet that is directly connected to the wall
US20090134162A1 (en) * 2004-10-25 2009-05-28 Impress Group B.V. Container comprising a closing sheet that is directly connected to the wall
WO2006045417A1 (en) * 2004-10-25 2006-05-04 Impress Group B.V. Container comprising a closing sheet that is directly connected to the wall
US20110233213A1 (en) * 2004-10-25 2011-09-29 Impress Group B.V. Container With a Closing Sheet That Is Directly Connected And Clamped To The Container Wall
EP3747797A1 (fr) 2019-06-06 2020-12-09 Groupe Guillin Dispositif de fermeture d'un pot destiné à contenir au moins un produit, dispositif de conditionnement comportant un tel dispositif de fermeture et procédés de fabrication d'un tel dispositif de fermeture et d'un tel dispositif de conditionnement
FR3096972A1 (fr) * 2019-06-06 2020-12-11 Groupe Guillin Dispositif de fermeture d’un pot destiné à contenir au moins un produit, dispositif de conditionnement comportant un tel dispositif de fermeture et procédés de fabrication d’un tel dispositif de fermeture et d’un tel dispositif de conditionnement
WO2021028608A1 (es) * 2019-08-09 2021-02-18 Coolpeppers, S.L.U. Dispositivo para la preparación y distribución de comidas preparadas

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Publication number Publication date
JPS5113071B1 (online.php) 1976-04-24
CA937062A (en) 1973-11-20

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