US3799389A - Packaging container with tear-open thread - Google Patents

Packaging container with tear-open thread Download PDF

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Publication number
US3799389A
US3799389A US00306451A US30645172A US3799389A US 3799389 A US3799389 A US 3799389A US 00306451 A US00306451 A US 00306451A US 30645172 A US30645172 A US 30645172A US 3799389 A US3799389 A US 3799389A
Authority
US
United States
Prior art keywords
container
thread
oil
lid
tear
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
US00306451A
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English (en)
Inventor
S Bloeck
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.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
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 Alusuisse Holdings AG filed Critical Alusuisse Holdings AG
Application granted granted Critical
Publication of US3799389A publication Critical patent/US3799389A/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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/42—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions with cutting, punching, or cutter accommodating means
    • B65D17/46—Wires, strings or the like, e.g. rip cords
    • B65D17/462—Tearing-strips or -wires

Definitions

  • the seal is broken by means of a tear-open thread placed inwardly of the sealing area, the ends of which thread emerge from the container traversing the seal and are impregnated with an oil, e.g. mineral, vegetable or animal oil, moistening the sealing layers, in order to prevent bacteria from infiltrating the inside of the container along the tear-open thread thus contaminating the contents of the container.
  • an oil e.g. mineral, vegetable or animal oil
  • the present invention will eliminate this uncertainty and bring-forth a better seal against bacteria.
  • the present invention relates to a container with a tear-open thread, comprising a body which receives the contents and has its upper rim bent outwardly to form the sealing flange, and a lid made from a foil which by means of a synthetic resin has its rim heat-sealed to the sealing flange of the body, and a threaded tear-open thread, the latter being positioned within the container and inwardly of the seal, and the ends of which thread are led out between the sealing flanges of the body and the lid.
  • the improvement lies in the feature that the tear-open thread at least at its ends leading out of the container is impregnated with an oil which moistens the sealing layers.
  • FIG. 1 is a cross-sectional view of a container with tear open thread
  • FIG. 2 is a top plan view of the same container.
  • FIG. 3 is a fragmentary cross-sectional view showing a modified form of construction of the portion shown at A in FIG. 1.
  • a cup-shaped container body 1 manufactured by deep-drawing in the usual manner has at its upper rim portion a sealing flange 2. While the container is shown in the drawing with circular ground-plan, it may be of oval, angular, or of any other shape.
  • a lid 3 of corresponding shape has a border flange 4 which is welded or heat-sealed to the sealing flange 2 by pressure and heat.
  • the container body and lid may be'made from synthetic material, e. g. polyethylene, or from aluminum foil, or the bodymay be made from one and the lid from another material.
  • the invention is especially advantageousfor containers, the body and lid of which are made from aluminum foilfln this case body and lid are heat-sealed in a well known manner by means of an intermediate layer of synthetic material.
  • the container body and lid are coated with polyethylene.
  • the sealing and border flanges are pressed together, the coating melting within the reach of the sealing flange and resulting in a strong and tight seal.
  • the lid 3 has a depression 10 extending over the entire opening of the container body 1. Against a substantially vertical wall of this depression, facing the wall of the container body, the tear open thread 5 is placed.
  • the depression of the lid serves advantageously to keep the container body dustproof, as the lid can be readily reset after being opened.
  • the rim of the container body has a corresponding ridge 6 as shown in FIG. 1.
  • the depression 10 is shaped with an additional bend 7 protruding above the border flange 4.
  • the line of cutting follows this bend thus permitting an easier grip to remove the lid.
  • the two ends of the tear-open thread 5 are led out between the sealing flange 2 of the body and the border flange 4 of the lid.
  • the sealing flange 2 is curved inwards at its edge as shown at 8, which serves merely to avoid a sharp edge of the flange and injuries caused thereby, but has nothing to do with the sealing of the container.
  • the inwardly curved portion is cutout. The thread is applied after the curving in of the flange 2 and the ends are fixed by two points protruding into the cutout part of the curve which are, after application of the thread, pressed together.
  • the lid may be entirely removed if the ends of the thread are led out at the same place, or, it'may remain connected to the container body if the ends of the thread are led out apart as shown in FIG. 2. It is also possible to unite the two ends of the thread in the same pull tab.
  • the impregnation of thread 5 may be obtained with mineral oils, e.g. paraffin oil, as well as vegetable or animal oils, e.g. olive oil. It has been found too that the thread 5 need not necessarily to be made from threaded synthetic resin thread; it may be a silk thread as well.
  • the tear'open thread 5 need not to be impregnated over its entire length. It is only important that it be impregnated at its ends'leading out of the container 11.
  • the thread 5 may be impregnated, e.g. only within the reach of the sealing area.
  • the sealing rim of the containerll may be moistened with the oil prior to the sealing operation at the spot where the ends of the thread 5 come out of the container 1 1; or there may be impregnated only the led-out ends of the thread 5 after the sealing.
  • the impregnated thread 5 may be laid in the depression '10 situated in the neighbourhood of the inner border of the sealing area, either in the lid or in the body or in the wall of a depressed portion of the lid facing the wall of the container body 1.
  • One or both of the ends of the thread led out of the container 11 may be provided with a gripping tab.
  • EXAMPLES l A threaded thread of Terylene (100 den) was im-' pregnated with paraffin oil and laid into an aluminum container coated with polypropylene and filled with a culture medium, in such a way that the ends of the thread were sticking out of the container. The container was then heat-sealed with an aluminum lid coated with polypropylene.
  • a container having a body for receiving filling goods, a rim in the body bent to form a sealing flange, a lid having a rim adapted for obtaining a seal with the sealing flange, and a threaded tear-open thread arranged inwardly of the seal and within the container, the ends of the thread being let out of the container between the sealing flange and the lid, the improvement comprising an oil for impregnating at least a portion of the thread to prevent bacteria infiltration into the container along the thread.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
US00306451A 1971-11-19 1972-11-14 Packaging container with tear-open thread Expired - Lifetime US3799389A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1684271A CH537309A (de) 1965-08-09 1971-11-19 Behälter mit Aufreissverschluss

Publications (1)

Publication Number Publication Date
US3799389A true US3799389A (en) 1974-03-26

Family

ID=4420692

Family Applications (1)

Application Number Title Priority Date Filing Date
US00306451A Expired - Lifetime US3799389A (en) 1971-11-19 1972-11-14 Packaging container with tear-open thread

Country Status (11)

Country Link
US (1) US3799389A (is)
JP (1) JPS4863894A (is)
BE (1) BE791552R (is)
CH (1) CH537309A (is)
DE (1) DE2256520A1 (is)
FR (1) FR2160648A1 (is)
GB (1) GB1347619A (is)
IS (1) IS2119A7 (is)
IT (1) IT970908B (is)
NL (1) NL7215456A (is)
SE (1) SE391905B (is)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923237A (en) * 1974-08-06 1975-12-02 Ekco Prod Inc Package and method of forming same
GB2155897A (en) * 1984-03-20 1985-10-02 Scottish & Newcastle Breweries Seals for liquid containers
US4781304A (en) * 1987-10-06 1988-11-01 The Laitram Corporation Means and methods of sealing lids on containers
US5127065A (en) * 1990-04-17 1992-06-30 Wade Steven E Opening device for flexible packaging
US5215381A (en) * 1990-04-17 1993-06-01 Wade Steven E Opening device for flexible packaging
US5378066A (en) * 1990-04-17 1995-01-03 Greenbrier Innovations, Inc. Opening device for flexible packaging
US6817819B2 (en) 2001-11-27 2004-11-16 Omnitech International, Inc. Easy-open container end
US20090308781A1 (en) * 2008-06-12 2009-12-17 Gerald Joseph Le Clair Blister Pack With Opener
CN102712401A (zh) * 2009-09-24 2012-10-03 罗杰·布罗姆利 容器和开启部件
US8708344B2 (en) * 2012-10-02 2014-04-29 GM Global Technology Operations LLC Sealed assemblies and methods of unsealing same
ITGE20130117A1 (it) * 2013-12-06 2015-06-07 Daniele Calderone Dispositivo copribottiglie igienico
US9114925B2 (en) 2011-09-13 2015-08-25 Lincoln Global, Inc. Container for elongated articles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903179A (en) * 1957-04-24 1959-09-08 John F Vanhoof Self-contained opener for containers
US3362571A (en) * 1965-08-09 1968-01-09 Alusuisse Container with tear open seal
US3494538A (en) * 1967-11-30 1970-02-10 Reynolds Metals Co Tear string assembly for containers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903179A (en) * 1957-04-24 1959-09-08 John F Vanhoof Self-contained opener for containers
US3362571A (en) * 1965-08-09 1968-01-09 Alusuisse Container with tear open seal
US3494538A (en) * 1967-11-30 1970-02-10 Reynolds Metals Co Tear string assembly for containers

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923237A (en) * 1974-08-06 1975-12-02 Ekco Prod Inc Package and method of forming same
GB2155897A (en) * 1984-03-20 1985-10-02 Scottish & Newcastle Breweries Seals for liquid containers
US4781304A (en) * 1987-10-06 1988-11-01 The Laitram Corporation Means and methods of sealing lids on containers
US5127065A (en) * 1990-04-17 1992-06-30 Wade Steven E Opening device for flexible packaging
US5215381A (en) * 1990-04-17 1993-06-01 Wade Steven E Opening device for flexible packaging
US5378066A (en) * 1990-04-17 1995-01-03 Greenbrier Innovations, Inc. Opening device for flexible packaging
US6817819B2 (en) 2001-11-27 2004-11-16 Omnitech International, Inc. Easy-open container end
US20090308781A1 (en) * 2008-06-12 2009-12-17 Gerald Joseph Le Clair Blister Pack With Opener
CN102712401A (zh) * 2009-09-24 2012-10-03 罗杰·布罗姆利 容器和开启部件
US9114925B2 (en) 2011-09-13 2015-08-25 Lincoln Global, Inc. Container for elongated articles
US8708344B2 (en) * 2012-10-02 2014-04-29 GM Global Technology Operations LLC Sealed assemblies and methods of unsealing same
ITGE20130117A1 (it) * 2013-12-06 2015-06-07 Daniele Calderone Dispositivo copribottiglie igienico

Also Published As

Publication number Publication date
SE391905B (sv) 1977-03-07
DE2256520A1 (de) 1973-05-24
FR2160648A1 (is) 1973-06-29
CH537309A (de) 1973-05-31
GB1347619A (en) 1974-02-27
BE791552R (fr) 1973-03-16
JPS4863894A (is) 1973-09-05
NL7215456A (is) 1973-05-22
IT970908B (it) 1974-04-20
IS2119A7 (is) 1973-11-29

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