US3348719A - Closure means - Google Patents

Closure means Download PDF

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Publication number
US3348719A
US3348719A US512983A US51298365A US3348719A US 3348719 A US3348719 A US 3348719A US 512983 A US512983 A US 512983A US 51298365 A US51298365 A US 51298365A US 3348719 A US3348719 A US 3348719A
Authority
US
United States
Prior art keywords
lip
flange
plug portion
cap
lid
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
US512983A
Other languages
English (en)
Inventor
Rausing Anders Ruben
Ignell Rolf Lennart
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.)
Tetra Pak GmbH and Co
Original Assignee
Tetra Pak Rausing and Co KG
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
Priority claimed from CH1672964A external-priority patent/CH442055A/de
Application filed by Tetra Pak Rausing and Co KG filed Critical Tetra Pak Rausing and Co KG
Application granted granted Critical
Publication of US3348719A publication Critical patent/US3348719A/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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/10—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having frangible closures
    • 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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/023—Neck construction
    • B65D1/0246—Closure retaining means, e.g. beads, screw-threads
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/0005—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers made in one piece
    • B65D39/0023—Plastic cap-shaped hollow plugs
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/04—Cup-shaped plugs or like hollow flanged members
    • 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
    • B65D39/00—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D39/16—Closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers with handles or other special means facilitating manual actuation
    • 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
    • B65D2539/00—Details relating to closures arranged within necks or pouring openings or in discharge apertures, e.g. stoppers
    • B65D2539/001—Details of closures arranged within necks or pouring opening or in discharge apertures, e.g. stoppers
    • B65D2539/003—Details of closures arranged within necks or pouring opening or in discharge apertures, e.g. stoppers provided with sealing flanges or ribs

Definitions

  • the invention resides in the combination of a container having an opening surrounded by an inwardly and downwardly turned lip formed of elastic material, and a closure cap also formed of elastic material having a lid portion and a detachable tubular plug portion, said plug portion extending through said opening and having spaced apart flanges on opposite sides of said lip for retaining said plug in said opening and one or more tongues sealingly engaging the inner surface of said lip.
  • the primary object of the present invention is to provide a good tightening action in a closure means of the above kind.
  • U.S. Patent No. 3,251,499 describes a closure means of the kind above generally described.
  • the sealing action of this previous cap is obtained between the lower sharp edge of the inwardly turned lip and the lower flange of the tubular plug portion.
  • the cap therefor as to its sealing action has been developed on entirely new lines, the present invention constituting the result of this development work.
  • the invention thus is characterized by tightening means in the form of one or more sealing rings or sealing tongues provided in the interspace between the tubular plug portion and the inwardly turned lip, arranged sealingly to engage a substantially cylindrical surface of the inwardly turned lip.
  • FIG. 1 shows a fragmentary portion of a vertical section along the axis of a container and closure means according to one embodiment of the invention
  • FIG. 2 shows a fragmentary portion of a vertical section of a modified embodiment of the invention.
  • FIG. 1 shows a section through part thereof, the package being intended to consist of a bottle.
  • the top of the bottle 1 extends inwardly towards the centre of the bottle opening and downwardly towards the bottom of the bottle establishing a lip 6.
  • the bottle, or at least the lip 6, is most advantageously madefrom an elastic material, for example plastic.
  • the lip 6 presents a sharp edge 7 turned towards the bottom and a cylindrical surface which defines the bottle opening.
  • the cap 2 consists of two principal parts, namely a lid 3 and a tubular plug portion 5, interconnected by the connection 12. Also the cap 2 is preferably made from an elastic material, whereby the lid will form a cup spring and the tubular part a tube spring.
  • the tubular plug portion 5 is provided at its bottom end with a flange S having a bevel 9.
  • the flange 8 at its outer portion has a collar 21 which extends a distance H in a direction towards the lid of the cap.
  • a space 22 is thereby produced between the collar 21 and the tubular plug portion 5 of the cap.
  • the bottom of the space 22 is formed by a surface 23 on the flange 8.
  • the tubular plug portion is besides, along the peripheral surface thereof, provided with a number of sealing tongues 24, 25.
  • each sealing tongue has been undercut at an angle of l5-20, while the upper surface has been given a steep downwardly sloping form.
  • a further flange 10 Between the flange 8 and the lid 3 there is a further flange 10. Furthermore, between the flange 10 and the lid 3 there is provided a tear-up indication in the form of a deep notch 11 to the connection 12, this connection 12 in the region of the lower corner of the notch 11 having a very narrow section. Finally, the lid is provided with a pulling tab (not shown) to be used in connection with the opening of the package.
  • Closing of the package takes place in the following way.
  • a cap 2 is applied with the bevel 9 of the flange 8 against the lip 6, the bevel 9 engaging the surfaces which define the aperture.
  • the tubular plug portion 5 of the cap is moved down into the bottle opening.
  • the cup spring, i.e., the lid 3 is tensioned.
  • the lip 6 is moved by the bevel 9 more and more to the side until the collar 21 has completely passed the lip, at which time the latter snaps in above the collar 21.
  • the lid 3 the total diameter of which is slightly larger than the diameter of the top of the bottle has come into contact with the bottle slightly before.
  • the contact line is designated in the figure by the numeral 13.
  • the last phase of the downward movement is accordingly opposed not only by friction but also by two forces, namely the action of force between lip 6 and the bevel 9 and the compressive force between the lid 3 and the top of the lip 6.
  • the pressure on the central region of the lid 3 must therefore be increased, whereby the plate spring is further tensioned.
  • the tubular portion of the cap was therefor in one case provided with three sealing rings each 0.2 mm. high and having a section in the form of an isosceles triangle with the base 0.2 mm. This has given good sealing except in those cases where the sealing rings were damaged by the insertion of the cap in the bottle.
  • the sealing rings of this design have approximately an O-ring function, while in the construction according to the patent a sleeve seal has been provided. Furthermore, the number of sealing rings or sealing tongues has been into the bottle neck that at least the lower sealing tongue 25 has been passed when the lip 6 snaps into position. The cup spring action of the lid 3 then pulls the cap back the distance H which corresponds to the height of the collar. At least the lower sealing tongue 25 is then completely protected at the introduction and by the upwards sliding movement of the cap the best possible conditions have been created for the sealing tongue to turn over in the right direction.
  • the sealing of the package takes place by the sharp edge 7 of the lip 6 being pressed against the surface23 of the flange 8 and above all by the cylindrical surface of the lip being pressed against the sealing tongues 24, 25.
  • the pressure action will be maintained by three forces, namely the spring forces of the lip 6, the tubular plug portion 5 and the lid 3. If an inner pressure prevails within the package, which is the case if the filling material consists of a carbonated liquid, the sealing is further increased.
  • Opening of the package takes place in the following way.
  • the lid 3 By clasping the handle (not shown) and pulling it upwards, if the pulling force is suiiiciently great, the lid 3 will be torn away from the tubular plug portion 5 along the connection 12. The breaking will take place at the narrowest portion of the part 12, whereby burrs in the surface of fracture are substantially avoided.
  • the tubular plug portion 5, on the other hand, will remain in the package opening because a removal of this portion is prevented by the flanges 8 and 10. By allowing the portion 5 to remain in the bottle opening this will provide an attractive appearance by the fact that the sharp edge 7 is concealed.
  • the sleeve seal provided by the downwardly turned sealing tongues has proved to provide an excellent sealing action.
  • the cap is rather difficult to manufacture and requires complicated tools, which increase the price of the final product.
  • FIG. 2 which illustrates this second embodiment of the invention, the sealing ring has been designated 30.
  • This single sealing ring has a cross section in the form of a triangle having a peak angle of 90.
  • the cap is made from a rather tough stiff material, preferably MD-polyethylene. The kind of material and the sturdy dimensioning and rather obtuse form of the sealing ring will on one hand prevent ythe sealing ring from being destroyed when the cap is being pressed into the container opening, and on the other hand provide a high initial pressure between the sealing ring Iand the surface 20 due to the increased diameter and the small surface of contact.
  • FIG. 2 is shown a number of additional details which have no direct connection to the sealing function of the closure, but which for the sake of completeness will be described briefly.
  • the lid of the cap might be divided into a central portion 3 over the container opening and an outer annular portion 3".
  • the outer portion 3 of the cap is provided with a slot (not shown) extending from a point adjacent the pulling handle 4 to wards the central portion of the cap to a point adjacent the bottom of the notch 11.
  • the lid has been provided with one additional tearing facility in the form of a slot 34 in the surface turned to the package interior.
  • the slot 34 forms a short sector of a circle and is parallel to the connection 12 between the lid and the tubular plug portion 5.
  • a cap for said opening comprising a lid portion normally engaging said shoulder and an integral, tubular plug portion extending into and through said opening, said plug portion having a first flange adjacent to the lower end thereof which is of greater outer diameter than the inner diameter of said lip and is normally positioned below said lip with its upper surface engaging said lip, said plug portion having a neck portion above said first ilange and 'having at least one outwardly extending sealing tongue normally engaging said substantially cylindrical surface of said lip, said plug portion having a second flange above said neck portion of greater outer diameter than the inner diameter of said lip and normally positioned above the inner edge of said lip, said plug portion having an annular recess between said ksecond fiangeand said lid portion which extends inwardly farther than said neck portion anddefines a frangible portion between said lidportion and said plug portion,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Closures For Containers (AREA)
  • Package Closures (AREA)
US512983A 1964-12-28 1965-12-10 Closure means Expired - Lifetime US3348719A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1672964A CH442055A (de) 1964-12-28 1964-12-28 Behälter mit Verschluss
SE363065 1965-03-20

Publications (1)

Publication Number Publication Date
US3348719A true US3348719A (en) 1967-10-24

Family

ID=25718400

Family Applications (2)

Application Number Title Priority Date Filing Date
US512983A Expired - Lifetime US3348719A (en) 1964-12-28 1965-12-10 Closure means
US535466A Expired - Lifetime US3317070A (en) 1964-12-28 1966-03-18 Cap

Family Applications After (1)

Application Number Title Priority Date Filing Date
US535466A Expired - Lifetime US3317070A (en) 1964-12-28 1966-03-18 Cap

Country Status (8)

Country Link
US (2) US3348719A (de)
BE (2) BE674417A (de)
CH (1) CH458098A (de)
DE (2) DE1261054B (de)
DK (1) DK115821B (de)
ES (1) ES320843A1 (de)
GB (2) GB1068488A (de)
NL (2) NL6516912A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435975A (en) * 1967-10-30 1969-04-01 Tamper Proof Tops Ind Ltd Safety closure
US3578027A (en) * 1969-07-30 1971-05-11 William L Zopfi Sealing plugs or closures
US3608771A (en) * 1969-03-12 1971-09-28 Ex Cell O Corp Disposable pressure container
US3797689A (en) * 1971-09-29 1974-03-19 Continental Can Co Tamper-proof closure for a pressurized container
US4078688A (en) * 1976-02-04 1978-03-14 Tetra Pak Developpement Sa Container closure
US4140235A (en) * 1976-07-15 1979-02-20 Tetra Pak Developpement Sa Closing arrangement for packing containers
US4149651A (en) * 1973-04-19 1979-04-17 Tetra Pak Developpement Sa Closure device
US4185747A (en) * 1976-04-06 1980-01-29 L'oreal Bottle stopper with inviolability device
WO1988008396A1 (en) * 1987-04-27 1988-11-03 Ogden Stanley D Tamper resistant, tamper evident leak proof container
US4813563A (en) * 1987-04-27 1989-03-21 Doxtech, Inc. Tamper resistant, tamper evident leak proof container
US5947318A (en) * 1997-02-24 1999-09-07 Tetra Laval Holdings & Finance S.A. Opening device for packages of pourable food products

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3779416A (en) * 1971-11-15 1973-12-18 Denver Plastics Inc Flexible sealing closure with frangible section
CH566905A5 (de) * 1973-08-28 1975-09-30 Barrel Fresh Service Ag
SE416191B (sv) * 1977-06-20 1980-12-08 Rigello Pak Ab Forslutningsanordning for forpackningsbehallare
US4209126A (en) * 1979-01-12 1980-06-24 Boise Cascade Corporation Patch top closure member including a monoaxially oriented film layer
SE441591B (sv) * 1980-08-20 1985-10-21 Rigello Pak Ab Tillslutningsanordning for burkar, kanistrar och liknande behallare
JP6468793B2 (ja) * 2014-10-21 2019-02-13 日本クロージャー株式会社 合成樹脂製容器蓋

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3191798A (en) * 1962-07-31 1965-06-29 Alan M White Lined waste container
US3199748A (en) * 1961-10-07 1965-08-10 Frank T Johmann Closure means

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3124267A (en) * 1964-03-10 Figure
FR1348100A (fr) * 1962-02-09 1964-01-04 Unilever Nv Récipients inviolables et pièces rapportées pour ceux-ci
DE1902964U (de) * 1963-09-13 1964-10-22 Mauser Kg Behaelter.
US3142404A (en) * 1963-09-16 1964-07-28 Container Corp Container closure with removable section
CH437018A (de) * 1964-07-02 1967-05-31 Ruben Rausing Anders Behälter mit Verschluss

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199748A (en) * 1961-10-07 1965-08-10 Frank T Johmann Closure means
US3191798A (en) * 1962-07-31 1965-06-29 Alan M White Lined waste container

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3435975A (en) * 1967-10-30 1969-04-01 Tamper Proof Tops Ind Ltd Safety closure
US3608771A (en) * 1969-03-12 1971-09-28 Ex Cell O Corp Disposable pressure container
US3578027A (en) * 1969-07-30 1971-05-11 William L Zopfi Sealing plugs or closures
US3797689A (en) * 1971-09-29 1974-03-19 Continental Can Co Tamper-proof closure for a pressurized container
US4149651A (en) * 1973-04-19 1979-04-17 Tetra Pak Developpement Sa Closure device
US4078688A (en) * 1976-02-04 1978-03-14 Tetra Pak Developpement Sa Container closure
US4185747A (en) * 1976-04-06 1980-01-29 L'oreal Bottle stopper with inviolability device
US4140235A (en) * 1976-07-15 1979-02-20 Tetra Pak Developpement Sa Closing arrangement for packing containers
WO1988008396A1 (en) * 1987-04-27 1988-11-03 Ogden Stanley D Tamper resistant, tamper evident leak proof container
US4813563A (en) * 1987-04-27 1989-03-21 Doxtech, Inc. Tamper resistant, tamper evident leak proof container
US4871077A (en) * 1987-04-27 1989-10-03 Doxtech, Inc. Tamper resistant, tamper evident leak proof container
US5947318A (en) * 1997-02-24 1999-09-07 Tetra Laval Holdings & Finance S.A. Opening device for packages of pourable food products

Also Published As

Publication number Publication date
BE678159A (de) 1966-09-01
NL6516912A (de) 1966-06-29
GB1063610A (en) 1967-03-30
DE1262877B (de) 1968-03-07
DE1261054B (de) 1968-02-08
GB1068488A (en) 1967-05-10
ES320843A1 (es) 1966-09-01
CH458098A (de) 1968-06-15
DK115821B (da) 1969-11-10
NL6603445A (de) 1966-09-21
BE674417A (de) 1966-04-15
US3317070A (en) 1967-05-02
NL154976B (nl) 1977-11-15

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