EP0069085B1 - Flüssigkeitsdichter Verschluss für Behälter - Google Patents

Flüssigkeitsdichter Verschluss für Behälter Download PDF

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Publication number
EP0069085B1
EP0069085B1 EP82830162A EP82830162A EP0069085B1 EP 0069085 B1 EP0069085 B1 EP 0069085B1 EP 82830162 A EP82830162 A EP 82830162A EP 82830162 A EP82830162 A EP 82830162A EP 0069085 B1 EP0069085 B1 EP 0069085B1
Authority
EP
European Patent Office
Prior art keywords
cap
filling port
fastener
liquid
tight
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
Application number
EP82830162A
Other languages
English (en)
French (fr)
Other versions
EP0069085A1 (de
Inventor
Giovanni Mantovani
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.)
Dox Al Italia SpA
Original Assignee
Dox Al Italia SpA
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 Dox Al Italia SpA filed Critical Dox Al Italia SpA
Priority to AT82830162T priority Critical patent/ATE22047T1/de
Publication of EP0069085A1 publication Critical patent/EP0069085A1/de
Application granted granted Critical
Publication of EP0069085B1 publication Critical patent/EP0069085B1/de
Expired 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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/28—Caps combined with stoppers

Definitions

  • This invention relates to an improved liquid-tight plastics fastener for cans, which comprises a cap inserted into a filling port and provided in its upper part with an annular projection, an o-ring inserted between the end of the filling port and the annular projection of the cap, and a retaining ring nut screwed onto the filling port.
  • a can fastener of the type indicated above is known from DE-A-2056246.
  • a liquid-tight seal must be able to be attained even with cans produced by economical moulding means, i.e. starting from a plastics tube which is hot-deformed with compressed air in a suitable mould, until it takes the form of the mould.
  • the resultant filling ports have fairly thin walls, an irregular thread and a high tendency to liquid loss through the fastener, when relatively low pressures are exceeded. This drawback becomes worse if it is necessary to make a threaded connection through the cap of a can produced as described, even if the cap is made thicker.
  • the can fastener illustrated in figure 1 comprises a can filling port 1, a cap 3 inserted into the filling port 1 and provided in its upper part with an annular projection, an o-ring 4 inserted between the end of the filling port 1 and the annular projection of the cap, and a retaining ring nut 2 screwed onto the filling port 1.
  • the cap 3 consists of a solid cylindrical piece of plastic material.
  • the portion of the cap 3 which is inserted into the filling port has a height which is substantially the same as the height of the filling port 1 and a diameter which is substantially the same as the internal diameter of said filling port 1, one or more liquid tight threaded connectors 5, 6 being connected to the cap.
  • the o-ring is preferably of Nylon. I have also found that by adopting a circular line of contact between the upper parts of the cap 3 and the ring nut 2, the seal is improved even if vibration is present.
  • the ring nut 2 and cap 3 can be made of suitable thermoplastic material, for example nylon, or metal.
  • the filling port 1 has been designed for the simultaneous patent application in the name of the present applicant entitled: "Containers for distributors of liquids for spraying on to hay and other agricultural products", and for this reason two male threaded connectors (5,6) are shown for the compressed air and for the pressurised liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Packages (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Claims (4)

1. Flüssigkeitsdichter Kunststoff-Kannenverschluß, der einen Deckel (3), welcher in einen Füllstutzen (1) eingesetzt und in seinem oberen Teil mit einem ringförmigen Fortsatz versehen ist, einen O-Ring (4), der zwischen das Ende des Füllstutzens und den ringförmigen Fortsatz des Deckels eingesetzt ist, und eine auf den Füllstutzen (1) aufgeschraubte Halteringmutter (2) aufweist, dadurch gekennzeichnet, daß der Deckel (3) aus einem vollen zylindrischen Stück aus Kunststoffmaterial besteht, wobei der in den Füllstutzen eingesetzte Abschnitt des Deckels (3) eine Höhe hat, welche im wesentlichen gleich groß wie die Höhe des Füllstutzens (1) ist, und einen Durchmesser hat, der im wesentlichen gleich groß wie der Innendurchmesser des erwähnten Füllstutzens (1) ist, und daßder Deckel mit einem oder mehreren flüssigkeitsdicht verschraubten Verbindern (5, 6), welche mit dem Deckel (3) verbunden sind, bersehen ist.
2. Verschluß nach Anspruch 1, dadurch gekennzeichnet, daß eine kreisförmige Berührung zwischen dem Deckel (3) und der Ringmutter (2) vorgesehen ist.
3. Verschluß nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der untere Teil des Deckels (3) leicht konisch ist, mit einem Scheitelwinkel in Richtung des Kanneninneren, der kleiner als 10° ist.
4. Verschluß nach eine der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein oder mehrere flüssigkeitsdicht verschraubte Verbinder (5) und (6) mit dem Deckel (3) verbunden sind.
EP82830162A 1981-06-19 1982-06-08 Flüssigkeitsdichter Verschluss für Behälter Expired EP0069085B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82830162T ATE22047T1 (de) 1981-06-19 1982-06-08 Fluessigkeitsdichter verschluss fuer behaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22459/81A IT1136694B (it) 1981-06-19 1981-06-19 Chiusura perfezionata a tenuta di liquido specie per taniche
IT2245981 1981-06-19

Publications (2)

Publication Number Publication Date
EP0069085A1 EP0069085A1 (de) 1983-01-05
EP0069085B1 true EP0069085B1 (de) 1986-09-10

Family

ID=11196580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82830162A Expired EP0069085B1 (de) 1981-06-19 1982-06-08 Flüssigkeitsdichter Verschluss für Behälter

Country Status (4)

Country Link
EP (1) EP0069085B1 (de)
AT (1) ATE22047T1 (de)
DE (1) DE3273150D1 (de)
IT (1) IT1136694B (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2056246A1 (de) * 1970-11-16 1972-05-31 Schiemann, Wolfram, Dr.-Ing., 7140 Ludwig sburg Schraubdeckel für Gewindestutzen von Kanistern
DE2113106C3 (de) * 1971-03-18 1981-07-23 R. von Hünersdorff Nachf. Friedrich Bührer sen. KG, 7140 Ludwigsburg Vorrichtung zum Verschließen von Ausguß-Stutzen von Kanistern
FR2228005B2 (de) * 1973-05-02 1977-09-02 Cros Modesto
US4116352A (en) * 1976-11-01 1978-09-26 Leonard Russo Sealing device

Also Published As

Publication number Publication date
IT8122459A0 (it) 1981-06-19
IT1136694B (it) 1986-09-03
DE3273150D1 (en) 1986-10-16
ATE22047T1 (de) 1986-09-15
EP0069085A1 (de) 1983-01-05

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