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
  • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
  • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
  • B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
  • B65D17/4011—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall for opening completely by means of a tearing tab

Definitions

• This descriptive report is related to the patent of invention for improvement in seal/lid of metal containers for powder foodstuff or other material, the development of which has as purpose to develop a lid-seal which assures the necessary tightness, the consequent quality of the packaged product, and the conviction that there will be no possibility of harming the fingers, upon its opening.
• cylinder shaped metal packaging and respective seals form a process well known for decades which is used by different manufacturers of powder milk, milk products, chocolate flavors, and others.
• Some manufacturers use a cylindrical packaging material made out of semi-rigid plastic material which, after the introduction of the product within it, receives an aluminum laminated seal which is hot sealed, receiving a flexible plastic material secondary cover, fitted under pressure which, after taking the seal off, shall be used as the lid of the package, a cheaper solution than the one previously mentioned.
• the problem is in the possibility of the welding used for sealing not being perfect, allowing the entering of aerobic bacteria which could affect the quality of the product.
• the improvement made in the lid-seal, for metal packages of powder food or others material is constituted by a construction where the closing of the metal package or, as commonly known by the public, the can, is made by a kit formed by an injected plastic membrane (PEBD) with a peripheral border, an applied ring like thin breaking line and an incorporated traction ring, plus a upper ring like depression to receive a stamped laminar ring, made in metal sheet the inner border of which is drawn and bent so that its cutting edge remains hidden, with the outside edge of said set fixed on the upper edge of the body of said packing material by beading operation, with said laminar ring having an internal diameter slightly larger than the diameter of said thin line of the plastic membrane in order to act as a support and to help in the braking of said line, when the user pulls the ring to open the package.
• PEBD injected plastic membrane
• the production cost of said elements is substantially less than when aluminum laminate material is used, and it also increases the productivity, due to the production automation, therefore helping the company in their constant search for production cost reduction.
• Figure 1 - shows an upper view of the laminar stamped metal ring
• Figure 2 - shows a longitudinal cross section along the line A-A' of the stamped metal laminar ring
• Figure 3 - shows a vertical cross section of the "B" detail of the stamped metal laminar ring
• Figure 4 - shows an upper view of the injected plastic membrane.especially the incorporated pulling ring and the thin breaking line;
• Figure 5 - shows the C-C longitudinal line, the injected plastic membrane.specially the incorporated pulling ring;
• Figure 6 - shows the vertical cross section of detail "D" of the injected plastic membrane, noticing the incorporated pulling ring attached by a breaking small portion, the seat for said metal ring and the breaking thin line with a reinforcement along it;
• Figure 7 - shows a vertical cross section of the detail of the metal ring on the plastic membrane to be mounted on the mouth of the metal container, to be beaded;
• Figure 8 - shows, in an upper view, the metal container with the plastic membrane and the beaded metal laminar ring
• Figure 9 - shows a lateral view of the cylindrical metal container (or can) with the upper beading portion which fixes the ring and the membrane, sealing the container;
• Figure 10 - shows a partial cross section of the "F" detail, the plastic membrane which received the beaded metal laminar ring on the edge of the container sealing it and;
• Figure 11 - shows the detail of the braking of the seal-lid for the opening of the container for the consumption of the product.
• This present Patent of Invention for "IMPROVEMENT INTRODUCED IN A LID-SEAL OF METAL CONTAINERS FOR POWDER FOOD OR OTHERS" is constituted by bead fixing on the upper edge of the metal container (1) made of metal sheet and a set formed by a plastic membrane (2), a metal ring (3), with said metal ring (3) being stamped to form a flat inner section (4) with a central circular opening (5) with the inner edge beaded and bend inward (6) and an elevation to form the lower bed (7) and ended by a peripheral border turned down and slightly inward (8) for later beading operation, with said membrane (2) made of injected plastic forming a peripheral portion (9) which will fit the bed (7) for beading on the border of the container (1), followed internally of a recess with ring like recess (10) where the flat inner section fits (4) with the inner edge bent inwards (6) of the metal ring (3) followed internally by a perimetral ring like reinforcement (11) and with a lower ring shaped thin

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Containers Opened By Tearing Frangible Portions (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Related Child Applications (2)

Publications (2)

Family

ID=36101279

Family Applications (1)

Country Status (6)

Citations (5)

Family Cites Families (2)

• 2000
  • 2000-03-21 BR BRPI0001936-4A patent/BR0001936B1/pt not_active IP Right Cessation
  • 2000-10-31 DE DE00982777T patent/DE00982777T1/de active Pending
  • 2000-10-31 DE DE60037464T patent/DE60037464T2/de not_active Expired - Lifetime
  • 2000-10-31 EP EP00982777A patent/EP1572542B1/en not_active Expired - Lifetime
  • 2000-10-31 WO PCT/BR2000/000128 patent/WO2001070579A2/en active IP Right Grant
  • 2000-10-31 ES ES00982777T patent/ES2247957T3/es not_active Expired - Lifetime
• 2001
  • 2001-01-29 AR ARP010100385A patent/AR027312A1/es active IP Right Grant

Patent Citations (5)

Non-Patent Citations (1)

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