EP3896001A1 - Manuell öffenbarer luftdichter behälter zur lebensmittelkonservierung unter vakuumbedingungen - Google Patents

Manuell öffenbarer luftdichter behälter zur lebensmittelkonservierung unter vakuumbedingungen Download PDF

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Publication number
EP3896001A1
EP3896001A1 EP20382295.2A EP20382295A EP3896001A1 EP 3896001 A1 EP3896001 A1 EP 3896001A1 EP 20382295 A EP20382295 A EP 20382295A EP 3896001 A1 EP3896001 A1 EP 3896001A1
Authority
EP
European Patent Office
Prior art keywords
airtight container
tab portion
connection region
manually openable
container according
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.)
Withdrawn
Application number
EP20382295.2A
Other languages
English (en)
French (fr)
Inventor
Bettina Böttger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP20382295.2A priority Critical patent/EP3896001A1/de
Priority to PCT/EP2021/058156 priority patent/WO2021198179A1/en
Priority to EP21715597.7A priority patent/EP4126687B1/de
Priority to EP24185331.6A priority patent/EP4414292A3/de
Priority to US17/915,891 priority patent/US20230146200A1/en
Publication of EP3896001A1 publication Critical patent/EP3896001A1/de
Withdrawn legal-status Critical Current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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • B65D53/02—Collars or rings
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • 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
    • B65D2543/00—Lids or covers essentially for box-like containers
    • B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444—Contact between the container and the lid
    • B65D2543/00564—Contact between the container and the lid indirect by means of a gasket or similar intermediate ring

Definitions

  • the present invention is directed to a manually openable airtight container for food preservation under vacuum conditions.
  • the proposed airtight container can store food under a partial vacuum atmosphere and can be opened manually.
  • Airtight containers including a rigid receptacle with a receptacle opening covered with a rigid lid and also including a sealing ring compressed between the rigid receptacle and the rigid lid are already known in the state of the art.
  • the present invention solves those and other problems.
  • the present invention is directed to a manually openable airtight container for food preservation under vacuum conditions, i.e. an inner air pression lower than the outer air pressure.
  • An airtight container is a container which, when closed, prevents the entrance or exit of gas such ambient air and others, even when a pressure differential exists between the inside and the outside of the airtight container.
  • the airtight container prevents the entrance or exit of gases preserving the inner atmosphere unaltered.
  • the proposed airtight container comprises, in a manner already known in the available state of the art:
  • the rigid receptacle has an inner space, where foods can be stored, accessible through the receptacle opening.
  • the region of the rigid receptacle surrounding said receptacle opening is the annular mouth, which typically is circular, but which could have any other shape.
  • the rigid lid can be moved from a closed position, in which completely covers the receptacle opening and the annular mouth, to an opened position allowing access to the receptacle opening.
  • Said rigid lid is releasably attached to the rigid receptacle by a closure mechanism which assures its position and produces a compression force on the rigid lid against the annular mouth of the rigid receptacle, when in the closed position.
  • Said closure mechanism can include clips, threads, elastic grippers, lever mechanisms, and others.
  • the flat sealing ring is a flat ring made of an elastic material.
  • the flat sealing ring includes an annular portion of a constant thickness which, when the rigid lid is in the closed position, is compressed between the annular mouth of the rigid receptacle and the perimetral region of the rigid lid, providing an airtight sealing which can withstand vacuum conditions within the rigid receptacle.
  • the flat sealing ring further includes a tab portion which projects outwards from the annular portion of the flat sealing ring, allowing a user to pull said tab portion producing an elastic deformation of the annular portion breaking the airtight sealing, producing the entrance of air into the rigid receptacle and the release of the rigid lid therefrom.
  • connection region The region of the annular portion where the tab portion is attached is named the connection region therefore said connection region is part of the annular portion and is also compressed between the rigid receptacle and the rigid lid.
  • the tab portion extends from an outer edge of the connection region, and that said outer edge is in the same position than the perimeter of the rest of the annular portion, typically at the same distance from the center of the flat sealing ring.
  • the present invention further comprises the following features which are not known from the available state of the art:
  • the flat sealing ring includes a deformation enhancer configuration comprising:
  • the tab portion which extends radially from the annular portion, produces a local decrease in the deformability of the connection region in comparison with the rest of the annular portion because said tab portion determines a local increase of the flat sealing ring width in the radial direction. This reduced deformability jeopardizes and makes it difficult the airtight sealing breakage when the user pulls the tab portion.
  • any of the proposed configurations produces an increase in the deformability of the annular portion in the connection region and in surrounding areas when the tab portion is pulled by the user, because the proposed deformation enhancer configuration reduce the cross section area of the flat sealing ring without endangering the airtight sealing, allowing for an easier release of the vacuum by pulling the tab portion.
  • the deformation enhancer configuration is a through hole placed on the tab portion adjacent to the connection region, and preferably in contact or tangent with said connection region, said through hole interrupts the continuity of the material constitutive of the flat sealing ring, therefore increasing its deformability.
  • the deformation enhancer configuration is a thickness reduction placed on the tab portion adjacent to the connection region, and preferably in contact or tangent with said connection region, said thickness reduction reduces the mass of material constitutive of the flat sealing ring, therefore increasing its deformability.
  • said at least one through hole is one through hole placed between two lateral edges of the tab portion, dividing the tab portion in two branches, and preferably it is placed on a half of the tab portion closer to the connection region of the sealing annular portion.
  • the tab portion has two halves, one adjacent to the connection region containing the through hole, and one half away from the connection region.
  • the through hole is centered, said two branches being symmetric over a radial axis which extends outwards in a radial direction coplanar with the flat sealing ring and perpendicular to the connection region of the annular portion, to ensure a symmetric deformation of the flat sealing ring and preventing undesired stress concentrations.
  • each branch is at most one and half times the maximal width of the through hole measured in a direction parallel to the junction between the tab portion and the connection region. This relationship ensures a sufficient deformability enhance without producing a breakage risk.
  • the through hole is perpendicular to a main surface of the tab portion and is circular to prevent stress concentrations.
  • the deformation enhancer configuration includes a notch
  • said notch will preferably reduce equal or less than one fifth of the width of the connection region, i.e. that the width of the annular portion, where includes said notch, is at least four fifths of the width on the rest of the annular portion.
  • said notch does not affect the area of the annular portion of the flat sealing ring compressed between the annular mouth and the perimetral region of the rigid lid.
  • the flat sealing ring can be made of rubber or silicone.
  • the thickness reduction of the deformation enhancer configuration can be an elongated groove parallel to the junction between the tab portion and the connection portion.
  • Said thickness reduction of the deformation enhancer configuration can be also defined on both sides of the tab portion, for example as two symmetric grooves defined on opposed sides of the tab portion.
  • Said gripping enhancer configurations include holes, grooves, and/or protrusions on one or both main surfaces of the tab portion. Said gripping enhancer configurations provide an enhanced gripping of the tab portion for pulling.
  • the gripping enhancer configurations can be included at least on a half of the tab portion away from the connection portion, which is the most accessible part of the tab portion for a user.
  • the gripping enhancer configurations are, for example, lineal grooves and/or protrusions oriented in a non-radial direction.
  • the gripping and the deformation enhancer configurations consistent in a local variation in the thickness of the flat sealing ring will be preferably obtained by thermo-forming said flat sealing ring.
  • radial direction is a direction contained in a plane coplanar with the flat sealing ring when compressed between the rigid receptacle and the rigid lid which extends outwardly from a center of the annular mouth.
  • the width of the flat sealing ring, and of its components such as the annular portion, is measured in said radial direction.
  • the thickness of the flat sealing ring, and of its components such as the annular portion, is measured in a direction perpendicular to said plane coplanar with the flat sealing ring when compressed between the rigid receptacle and the rigid lid.
  • the rigid receptacle and optionally also the rigid lid are made of glass.
  • references to geometric position such as parallel, perpendicular, tangent, etc. allow deviations up to ⁇ 5° from the theoretical position defined by this nomenclature.
  • the present invention is a manually openable airtight container for food preservation under vacuum conditions.
  • the container comprises a rigid receptacle 10, a rigid lid 20, a flat sealing ring 30 made of an elastic material and compressed in between, and a closure mechanism retaining the rigid lid against the rigid receptacle applying a compression force to the flat sealing ring 30 compressed between them.
  • closure mechanism 40 is a lever mechanism made of a metallic wire bended in a precise manner which can be moved between a closed position and an opened position by moving a lever integrated therein.
  • the rigid receptacle 10 includes an annular mouth 12 surrounding a receptacle opening 11 which gives access to an inner hollow space of the rigid receptacle 10.
  • the rigid receptacle is made of glass and the annular mouth 12 is circular, defined on the uppermost surface of a circular glass wall included in the rigid receptacle 10.
  • the flat sealing ring 30 includes an annular portion 31 which reproduces the shape and size of the annular mouth 12 and which surrounds a central opening of the flat sealing ring 30 coincident with the receptacle opening 11.
  • the flat sealing ring 30 further comprises a tab portion 33 extending outwards from the annular portion 31, away from said central opening, and accessible from the exterior of the container by a user for pulling the flat sealing ring 30 outwards in a radial direction coplanar with said flat sealing ring 30 for breaking the vacuum defined within the container.
  • connection region 32 The region of the annular portion 31 wherein the tab portion 33 is attached is named connection region 32.
  • the proposed deformation enhancer configuration 50 comprises a circular through hole adjacent to the connection region 32.
  • said through hole is fully comprised in the half of the tab portion 33 closer to the connection region 32.
  • each branch divides the tab portion 33 in two symmetric branches.
  • the minimal width of each branch is equal to or smaller than the maximal width of the through hole. It is also preferred that each branch has a minimal width equal to or bigger than two times its thickness.
  • the deformation enhancer configuration 50 is a linear groove contained in the tab portion 33 and adjacent to the connection region 32, producing a thickness reduction of the tab portion 33 in comparison with the thickness of the annular portion 31.
  • said groove is perpendicular to the radial direction, but the thickness reduction can have many other shapes or even affect the entire surface of the tab portion 33.
  • the deformation enhancer configuration 50 is a notch of the inner edge of the annular portion 31 which surrounds the central opening. Said notch produces a width reduction of the annular portion 31 coincident with the connection region 32.
  • the dimension of said notch shall be limited to prevent the reduction of the sealing capacity of the flat sealing ring 30. In this case the notch reduces one fifth of the width of the annular portion 32.
  • the present invention also proposes the inclusion of a gripping enhancer configuration 60 comprised at least in the half of the tab portion 33 away from the connection region 32.
  • said gripping enhancer configuration 60 comprises linear protrusions or dot-shaped protrusions, but also depressions or holes are also contemplated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP20382295.2A 2020-03-31 2020-04-15 Manuell öffenbarer luftdichter behälter zur lebensmittelkonservierung unter vakuumbedingungen Withdrawn EP3896001A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20382295.2A EP3896001A1 (de) 2020-04-15 2020-04-15 Manuell öffenbarer luftdichter behälter zur lebensmittelkonservierung unter vakuumbedingungen
PCT/EP2021/058156 WO2021198179A1 (en) 2020-03-31 2021-03-29 Container with a reusable cap
EP21715597.7A EP4126687B1 (de) 2020-03-31 2021-03-29 Behälter mit wiederverwendbarer kappe
EP24185331.6A EP4414292A3 (de) 2020-03-31 2021-03-29 Behälter mit wiederverwendbarer kappe
US17/915,891 US20230146200A1 (en) 2020-03-31 2021-03-29 Container with a reusable cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20382295.2A EP3896001A1 (de) 2020-04-15 2020-04-15 Manuell öffenbarer luftdichter behälter zur lebensmittelkonservierung unter vakuumbedingungen

Publications (1)

Publication Number Publication Date
EP3896001A1 true EP3896001A1 (de) 2021-10-20

Family

ID=70391030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20382295.2A Withdrawn EP3896001A1 (de) 2020-03-31 2020-04-15 Manuell öffenbarer luftdichter behälter zur lebensmittelkonservierung unter vakuumbedingungen

Country Status (1)

Country Link
EP (1) EP3896001A1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1539222A (en) * 1923-03-30 1925-05-26 Martha L Turner Sealing ring for jars
US1659677A (en) * 1921-12-15 1928-02-21 Thomas E Welsh Fruit-jar rubber, washer, or sealing ring
DE560843C (de) * 1932-10-07 Hufnagl Karl Dichtungsring fuer Konservierungsgefaesse
FR1217209A (fr) * 1958-12-03 1960-05-02 Hutchinson Cie Ets Joint perfectionné pour bocaux à conserves et récipients analogues
FR2640591A2 (fr) * 1987-12-29 1990-06-22 Arques Durand Cie Sarl Verreri Conditionnement, tel que bouteille, bocal ou autre recipient, joint d'etancheite pour ledit conditionnement et procede de fabrication dudit joint d'etancheite
FR2821064A1 (fr) * 2001-02-22 2002-08-23 Arc Int Conditionnement, tel que bouteille, bocal ou autre recipient similaire, et joint pour ledit conditionnement
US20110298184A1 (en) * 2010-05-07 2011-12-08 Lynn Aurelius O-Ring Apparatus With Integrated Tab and Method of Manufacturing Thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE560843C (de) * 1932-10-07 Hufnagl Karl Dichtungsring fuer Konservierungsgefaesse
US1659677A (en) * 1921-12-15 1928-02-21 Thomas E Welsh Fruit-jar rubber, washer, or sealing ring
US1539222A (en) * 1923-03-30 1925-05-26 Martha L Turner Sealing ring for jars
FR1217209A (fr) * 1958-12-03 1960-05-02 Hutchinson Cie Ets Joint perfectionné pour bocaux à conserves et récipients analogues
FR2640591A2 (fr) * 1987-12-29 1990-06-22 Arques Durand Cie Sarl Verreri Conditionnement, tel que bouteille, bocal ou autre recipient, joint d'etancheite pour ledit conditionnement et procede de fabrication dudit joint d'etancheite
FR2821064A1 (fr) * 2001-02-22 2002-08-23 Arc Int Conditionnement, tel que bouteille, bocal ou autre recipient similaire, et joint pour ledit conditionnement
US20110298184A1 (en) * 2010-05-07 2011-12-08 Lynn Aurelius O-Ring Apparatus With Integrated Tab and Method of Manufacturing Thereof

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